Feeds:
Posts
Comments

Were I come from the climate is cold and some types of plants are not well represented in the wild or are do not grow there at all. An example is broad leaf evergreen plants. The only types which have survived the extreme cold are those which have adapted themselves to be short enough to be coved by snow during the long winter. Another plant which has adapted itself in a most usual way is the Licorice Fern(Polypodium glycyrrhiza) which grow here on the mild wet coast.

Polypodium glycyrrhiza or Licorice Fern

Polypodium glycyrrhiza or Licorice Fern growing on top of a rocky ledge amoungst the moss.

I first saw Licorice Ferns in a park in Surrey, near Vancouver. They are not nearly as noticeable as they are here and that may be due to there being more rocky outcrops for them to hang off of and be more exposed. At this time of the year these plants stand out because the fronds are fresh and green, newly grown during the late fall. The adaption Polypodium glycyrrhiza uses is to be deciduous during the dry season summers here. As we approach late spring Licorice Ferns drop their leaves and go dormant over the dry hot summer. In early fall with the first rains of the approaching wet season the ferns wake up and start to grow a new crop of leaves.

Remnants of other years growth are seen at the base of this clump of Licorice Fern.

Remnants of other years growth are seen at the base of this clump of Licorice Fern.

Licorice Fern is a member of the Polypodium family of which there are up to 100 members.  They are spread throughout the world with the largest contingent found in tropical areas. All members of the family spread by rhizomes which are specialized stems that creep along the ground. The name Polypodium comes from ancient Greek and means: ‘poly’- many, and ‘podium(ion)’- little foot.  Glycyrrhiza is also from Greek and refers glykys(glycyr- sweet) and ‘rhiza’-root, this refers to the sweet licorice flavor of the root. The sweet flavor comes from ostadin which is a steroidal compound that is 3000 times sweeter than sucrose.

Several different clumps of Polypodium glycyrrhiza growing along Landsend Road in North Saanich.

Several different clumps of Polypodium glycyrrhiza growing along Landsend Road in North Saanich.

The Licorice Fern grows along a narrow strip which extends from central California through Oregon, Washington all the way up to Aleutin Islands. The area extends to the western slopes of the Coastal and Cascade Mountains and goes all the way to the ocean and then hops over the the major islands along the Pacific Ocean of North America. Polypodium glycyrrhiza grows in dappled to fully shaded sites which are often along road edges and rocky outcrops.  These ferns are also happy creeping up the bases of Big Leaf Maples(Acer macrophyllum), larger Alders and Garry Oaks. They are epiphytes which do no damage to the trees which they grow on. The fern roots have been used by native groups for healing sore throats and colds. The sweet rhizomes where sometimes chewed for the flavor. Licorice is one of only a few ferns which have been know to be eaten in various forms. The rhizomes were  eaten dried, steamed, raw or scorched.

You will find Licorice Ferns scattered through the gardens at Government House.

You will find Licorice Ferns scattered through the gardens at Government House.

Licorice Ferns grow in areas which often have very little soil. Often these sites have a layer of moss which spores of the ferns are able to grow in and develop into sheets of slowly creeping clumps of fronds. If you are lucky you will have a clump of these plants which will need little attention through the year. Many years ago I collected a piece of Polypodium glycyrrhiza which I have grown in a pot for many years. I bring it out to be on my steps during the winter for some seasonal color and later tuck into a less noticeable corner when it becomes dormant. I have divided it several times and given parts away to other gardeners.

My Licorice Fern growing in a colorful bucket on a step near my door.

My Licorice Fern growing in a colorful bucket on a step near my door.

In their native habitat Licorice Ferns can be seen growing along side wild Sedums, Tellima, Tiarellas and Heucheras. These ferns are charming to see in the winter and add a touch of bright green in areas which might be dingy and dark in the many conifers found here. I find Licorice Ferns facinating in where they choose to live and how they seem to miraculously appear on what look like barren rocks after the first rains of autumn every year. I always look forward to their appearance.

In the right place Licorice Ferns are a luxuriant carpet.

In the right place Licorice Ferns are a luxuriant carpet.

Growing Licorice Ferns are as easy as taking a piece and planting it where you want. It needs water during the winter when it is growing, now that is not hard at all here.  they are listed as growing in zones 5(-10 to -20f) through 8(10-20f). If they like their spot they will slowly increase the number of fronds which come up. they grow to 2ft tall, but rarely ever give that impression as they are usually bent over.

Polypodium glycyrrhiza in Playfair Park.

A great spot to view Polypodium glycyrrhiza is the top area of Playfair Park in Saanich.

More about Polypodium glycyrrhiza:

Wiki page: http://en.wikipedia.org/wiki/Licorice_fern

Efloras page about Licorice Ferns: http://efloras.org/florataxon.aspx?flora_id=1&taxon_id=233500977

Northwest Native of the Month: http://www.portlandnursery.com/plants/nativePicks/natives_polypodium.shtml

When I was in Horticulture school way back in the dark ages we learned about 300 trees and shrubs, the hardest for me were getting the conifers correct in my mind. These are the needle trees and shrubs such as Junipers of which there are many species, hybrids and cultivars. Of the group of conifers we were introduced to and studied several lost their needles every autumn.  These species which lose their needles are not that common around here except for the curious case of  the Metasequoia glyptostroboides (Dawn Redwood) and what an interesting story it has!

Fantastic fall coloring of the Metasequioa glyptostroboides, A..K.A. Dawn Redwood.

Fantastic fall coloring of the Metasequioa glyptostroboides, A..K.A. Dawn Redwood.

Metasequoia glyptostroboides is a very old and yet new plant. It described in 1941 by Shigeru Miki, a Japanese Paleobotanist. The genus was already known from fossil samples which where in collections in various places. This may be why this tree was called a ‘living fossil’ when it was found. In 1943 C. Wang(Zhen Wang) from the National Bureau of Forest Research was visiting Wan Xian Agricultural School and heard about a huge unknown tree which was found in Modaoxi which was nearby. Wang then decided at that time to take his team and go and investigate this tree, they followed the directions they were given and travelled through high mountains to get to Wan Xian,Sichuan (now in Hubei province). They arrived in late July and collected branch and cone samples from the huge tree which was found there. In 1946 more specimens were collected from the same tree.

The cones of Dawn Redwood trees are small valved capsules.

The cones of Dawn Redwood trees are small valved capsules.

The tree specimens form the herbarium collections Wang had sent  back were at first mis-identified by him as a new species Glyptostobus pensilis. More study were done at the Department of Forestry at the National Central University(Chongqing) by W. C.Cheng who was a professor of Dendrology and Dean of the Department there. Cheng decided Wang was wrong.  Cheng and Wang published “Metasequoia glyptostroboides Hu et Cheng” jointly in 1948.

Dawn Redwood Shed branchlets which are made up of needles in the fall.

Dawn Redwood Shed branchlets which are made up of needles in the fall.

Fossil samples show there were as many as 20 species and subspecies of Metasequoia at  one time which covered a wide area in the Northern Hemisphere. Samples have been collected as far north as Axel Heiberg Island(Canada) which parallels Greenland.  The ‘Bandlands’ of Western North America are full of fossilized stumps and other tree remnants. These fossils are from late Cretaceous to Miocene strata which they are well represented in.

One of several of the Dawn Redwood found at Beaconhill Park.

One of several of the Dawn Redwood found at Beacon Hill Park.

Most of the older Meatasequoia glyptostroboides are from the original seed sample material that was sent to Arnold Arboretum in 1948 and then germinated for distribution. The  new seedlings were sent to universities, other arboretum and  important parks for further study of the tree’s growth habits.  Most trees we have come from this original collection and this has created problems with in-breeding depression. To solve this problem in 1991 extensive seed collecting took place from the wild forests along the Sichuan-Hubei border in China. This will increase genetic diversity in the cultivated species. Plants which have come onto the market since this time are considered much stronger.

The delicate branches of the Dawn Redwood give this tree a delicate whimsical look.

The delicate branches of the Dawn Redwood give this tree a delicate whimsical look.

Dawn Redwoods are a fast growing tree which are normally are low limbed, making them great trees for climbing.  They need a large area, growing 75-100ft(23-30.5m) tall and 15-25ft(4.5-7.7m) wide. They like full sun and a well-drained moist site for the best growth.they do not like alkaline soils.  it is best to avoid planting these trees in frost pockets where the delicate emerging foliage can be damaged by late frosts. This tree is generally pest and disease if well taken care of.  They grow best in zones 4 through 8.

Older Dawn Redwood trees which retain their lower limbs can develope butresses bases which are much loved by children.

Older Dawn Redwood trees which retain their lower limbs can develope buttresses bases which are much-loved by children.

Metasequoia glyptostroboides is a true Sequoia and is related to the two other species (Sequoia sempervirens and Sequoiadendron giganteum) which are found on the west coast of North America. All tree species are listed in the subfamily Sequoioideae. The cones, and bark are similar,but the shedding of the foliage is different and highly unusual for any conifer.

More on Metasequoia:

A great source of information on all important conifer trees: http://www.conifers.org/cu/me/index.htm

Metasquoia has it’s own tree website: http://www.metasequoia.org/

A great source of information is alway found on this site: http://www.hort.uconn.edu/Plants/m/metgly/metgly1.html

Until we meet again……….

 

We are now on the edge of what I call ‘change over season’ which is when we move from the summer season of warm dry weather to the cool wet winter. This time of the late year is when big storms start to roll in dumping vast amounts of rain along with heavy winds. Now until the start of December is when we have power outages and roads blocked by tree limbs falling across them. The trees which were glorious in their fall coat of colorful leaves are suddenly bear from the repeated gusting of wind and punishing rains. The sounds of creaking tree limbs, rumblings of the tides and sometimes distant thunder make us want to bundle up warmly.  This is the time of the year where our gardens start to become skeletons of their former vibrant selves, only the backbones are left. One of the best bones left in the garden here is Miscanthus as it does stand up well with the new heavy fall season. The best of these grasses for staying power is Maiden Grass (Miscanthus sinensis ‘Gracillimus’).

A wonderful Maiden Grass in bloom growing in Sidney B.C.

A wonderful 'Maiden Grass' in bloom growing in Sidney B.C.

Miscanthus sinensis ‘Gracillimus’ is a fairly old hybrid which was has been in use since its introduction into cultivation in 1888. It is an improvement on the original beuatiful Miscanthus sinensis in that it has much finer, narrower leaves giving it an overall dainty and graceful look.  The leaves and fine and narrow and stand up well over a long period of growth.  The  foliage delicacy makes it a useful and attractive addition to gardens which are too small for  the larger Miscanthus sinensis forms.

Miscanthus sinensis 'Gracillimus' in flower at Glendale Gardens.

Miscanthus sinensis 'Gracillimus' in flower at Glendale Gardens in mid October.

Miscanthus sinensis orginally comes from Japan, China, Taiwan and into Korea. I have not been able to find out exactly where the form I am writing about today originates from although several very similar forms clearly are from Japan. I suspect that is the case with Miscanthus sinensis ‘Gracillimus’.

Miscanthus sinensis 'Gracillimus' blooming at Finerty Gardens in late October.

Miscanthus sinensis 'Gracillimus' blooming at Finerty Gardens in late October.

It is said that Maiden Grass is a shy bloomer in cooler climates, here in Victoria we often have hot dry summers which verge on droughts. It blooms here regularly whereas you might have problems in Vancouver or other areas near to here. Location in the brightest, warmest place you have will facilitate more blooms. This is one grass I would want to have even if it does not bloom, it’s vertical accent in the garden early in the year adds so much to a design. It is rated hardy to zone 4 or -30c (-20f) and up.

Here Maiden Grass is used in a mass planting, can you imagine the effect when it is blooming later in the year?

Here Maiden Grass is used in a mass planting, can you imagine the effect when it is blooming later in the year?

Even though Maiden Grass is delicate, it still is a formidable plant to put in a garden. the best plantings I have seen are using them in mass plantings, in long deep sunny borders and in grass gardens as specimens. They also make an attractive informal hedge and also make very good container subjects. Miscanthus sinensis ‘Gracillimus’ grows to be a tall 1.5m(6ft) when in bloom. Its arching form also adds weight and substance coming in at a 1.5-2m(6to 8ft) space. It is a slow grower, but once established is very steady and  predictable in its habit year after year.

The delicate plumes of Maiden Grass hold up well in wet weather.

The delicate plumes of Maiden Grass hold up well in wet weather.

The emerging bronzy plumes of Maiden Grass will fade to a papery cream with age. The grass gradually turns golden shades from the base up the fades out to the familiar dried grassy color which it will hold over the winter. When we emerge into the other side of winter and plants are starting to emerge from slumber, now is the time to cut the Maiden skeletons down. Miscanthus sinensis ‘Gracillimus’ is one of the first grasses to stir and needs to be unencumbered to resume its growth.

Miscanthus sinensis 'Gracillimus' seedheads have started to fade into the variegated foliage here.

Miscanthus sinensis 'Gracillimus' seedheads have started to fade into the variegated foliage here.

It is best to buy Miscanthus sinensis ‘Gracillimus’ in a container as growing it from seed is exceedingly slow. Even dividing these plants is a hard job, when i worked in a nursery dividing grass required a machete to cut them up. Fortunately for us most nurseries carry Maiden Grass year round as they are popular plants. Also lucky for us these are easy plant to grow and do not require any special treatment.  Plant them a sunny site with  fertile well drained soil which can be sandy. You have to be a bit patient as they are slow to establish.

If you walk around the Sidney waterfront you will see many uses of Maiden Grass.

If you walk around the Sidney waterfront you will see many uses of Maiden Grass.

More about this charming Maiden Grass:

A great website all about grasses for all climates: http://www.bluestem.ca/miscanthus-gracillimus.htm

Wiki page on Miscanthus sinensis: http://en.wikipedia.org/wiki/Miscanthus_sinensis

Until we meet again soon…..

I have been fortunate to have worked at some very good nurseries which have had great plants which they sold. Trees and shrubs and perennials which cover a vast swath of species, varieties and hybrids. Most of them have traveled from other continents to grow here.  One area that has been especially good to us is Asia and these plants usually grow very well. Many Asian plants we know for being splashy and showy, but I am often drawn to the more delicate and intricate in design. One species of plants are Tricyrtis (Toad Lilies)which are a quite most of the year; and then Whizzz-bang…. they go off like fireworks!

The small intricate flower of Tricyrtis formosana hybrids are commonly seen here.

The small intricate flower of Tricyrtis formosana hybrids are commonly seen here.

There are said to be 18 species of Tricyrtis which have crossed to create a group of  hybrid plants which are usually mislabeled in the trade. I know that in Japan these plants have been crossed for centuries  and then were ‘found’ and brought into the garden world in the 19th century by plant explorers who were sending plants back from Asia. Each species has lent something to the mix. Some Toad Lilies species have arching stems and have their blossoms along the axils of its leaves and others are more traditional in that the flowers are on the tops of leafy stems.

An attractive swath of Toad Lilies cutting through a shady boarder.

An attractive swath of Toad Lilies cutting through a shady boarder.

Tricyrtis grow from tropical  Philippine Island through into Nepal and then east across China and Korea into Japan. Here we generally only see the hardier varieties  such as formosana, hirta, affinis and latifolia and their many hybrids.  This means that the Toad Lilies are highly variable in their spotting and where on the plant the flowers are located.

This Trycrytis hybrid has it's flowers on the top of it's stems.

This Trycrytis hybrid has it's flowers on the top of it's stems.

Tricrytis have been so successful at hybridizing because they set  easily handled  fertile seed. Germinating it is relatively easy: sow the seeds warm under a thin coating of  moisture retentive soil and keep it there 5 to 6 weeks. Alternate the seed mixture into cold for up to 8 weeks, and then back to warm conditions until there is germination. This germination cycle is very common and basically follows nature, so it is possible to do the whole process outside as long as it does not freeze which will kill seeds. Once the plants are big enough to handle set them in seperate containers or where you want them to grow.

Toad Lily foliage is noticibly hairy along the margins and sometimes mottled.

Toad Lily foliage is noticibly hairy along the margins and sometimes mottled.

Now we know Toad Lilies are easy to germinate, it is good to know they are extremely easy to grow in the garden. Being woodland plants means Tricyrtis like  a shady position with dappled light. they require leafy nutrient rich soil which is moisture retentive which drains well.  They like their site be be well watered throughout the growing season.  These plants are stoloniferous and can easily be divided and moved around at any time as long as they are well watered after the transplanting is done.

Tricyris produce vigorous clumps which can easily be divided.

Tricyris produce vigorous clumps which can easily be divided.

Tricyris species can be used in several ways, as a specimen, in shady borders, naturalized and mass planted. Be sure to place them somewhere where the flowers are easily observed as they are small and delicately spotted and colored.   In colder areas it is advisable to plant them where they will get more sun and bloom earlier. They take -15c(-0 f) or zone 5 through 9.

It is easy to see why people are facinated by the spotted Toad Lily flowers.

It is easy to see why people are facinated by the spotted Toad Lily flowers.

More about Tricyrtis plants:

Tricyrtis formosana: http://www.mobot.org/gardinghelp/plantfinder/Plant.asp?code=A780

National Collection of Tricyrtis: http://www.nccpg.com/gloucestershire/tricyrtis.html

Until we meet again later…..

When I was in Horticulture school we learned many plants ranging from small ground covers, larger shrubs and finally to the majestic trees. Some of these plants are very overused while others are not seen enough, it all depends on how well known and in fashion they are.  One tree I learned is much more common in Vancouver than it is in Victoria and that truly is a pity. What I am referring to is the ‘Katsura’ tree (Cercidiphyllum japonicum) which has many features that it should be on most peoples lists of ‘must have’ trees.

Cercidiphyllum japonicum or 'Katsura Trees' on a rainy spring day in Vancouver.

Cercidiphyllum japonicum or 'Katsura Trees' on a rainy spring day in Vancouver.

At one time, long ago, Cercidiphyllum japonicum grew wild in a much larger area. Fossil records show Katsura trees lived in Europe and western North America during the Miocene Epoch 5 to 23 million years ago. Now They are found only in Japan and China. They are found in south central China,  particularly in north west Szechwan province where E.H. Wilson found forests of them in 1907. The trees found in China were considered to be a variety Cercidiphyllum japonicum var. sinense at one time and were said to be more tree-like.  In Japan they are found at valley bottoms where the soil is richer and there is more rainfall which these trees need.

The attractively shaped leaves is one of the most appealing aspects of 'Katsura' trees

The attractively shaped leaves is one of the most appealing aspects of 'Katsura' trees

Cercidiphyllum japonicum was introduced into cultivation in a most unusual way. Thomas Hogg  Jr(1819-1892) who owned a plant nursery with his brother James. He was appointed a U.S. Marshal by President Abraham Lincoln in 1862 and was then assigned to a diplomatic mission to Japan. While he was there, Thomas sent seeds of Cercidiphyllum japonicum to his brother  in 1865. His brther germinated them. Thomas was in Japan 10 years and also introduced several other well known plants;  Hosta ‘Thomas Hogg’  now called H. undulata var. albomarginata is probably the most famous.

Typical fall color of Cericidiphyllum japonicum found in the perennial border at Playfair park in Saanich.

Typical fall color of Cericidiphyllum japonicum found in the perennial border at Playfair park in Saanich.

Katsura trees tend to be multi trunked specimens which have strongly ascending branches. The leaves are relatively small and delicate compared to what the trunk and branches can become when these trees become more massive with age. It is intersting to note that these trees are also somewhat unusual in that they are dioecious meaning they are male or female plants.

A massive trunk of a Cercidiphyllum japonicum found in Beaconhill Park in Victoria.

A massive trunk of a Cercidiphyllum japonicum found in Beaconhill Park in Victoria.

In an ideal world Katsura trees grow to be enormous, Wilson found forests of trees with trunks of 2(6cm) and 3ft(90cm) widths and had regrown from their original stumps after the original trees had been harvest.  The largest one he noted was a remnant of a 17.5ft(5.33m) wide stump base. In the wild these trees can attain a height of 100ft(30m), but about half this in garden settings.  These trees are the most important source of wood  in Japan, and is used extensively for cabinetry and paneling there.

The color range of Cercidiphyllum japonicum ranges from crystal clear yellows through oranges and crimsons into plums as seen here.

The color range of Cercidiphyllum japonicum ranges from crystal clear yellows through oranges and crimsons into plums as seen here.

As autumn approaches Katsura trees put on a display for the senses, visually they are stunning with a color range few trees can achieve. On any day you will feast your eyes on shades of clear yellow, butter, many shades of peach and apricot, and into more striking crimsons and plums. You will notice they give of a pleasant odor as the leaves turn color, some describe it as ‘honey like’ and others say it has more of a’caramel’ or ‘brown sugar’ quality. How ever you explain it, it is a pleasant surprise which many people look forward to every year.

The striking golden tones of a happy Katsura tree changing color in the fall.

The striking golden tones of a happy Katsura tree changing color in the fall.

Cercidiphyllum japonicum is almost a perfect tree. It is very pest free and adaptive to most locations. In a garden setting it will grow to about 50ft(15m) tall which will fit in nicely to many landscapes. It makes an excellent multi stemmed residential, commercial, golf course or park tree. One thing you must keep in mind when placing it is having an adequate supply of water during the dry months.  Plant them in deep, rich, well drained soil. They need full sun to look their best.  This tree tolerates temperature down to 20f(29c). Newly emerging leaves can be damaged by late frosts.  there are several forms now on the market worth looking into if you are interested. the weeping forms are very attractive in the right location.

The same Cercidiphyllum japonicum in summer and fall. The corner planting along Quadra and Fairfield in Victoria.

The same Cercidiphyllum japonicum tree in summer and fall. The corner planting along Quadra and Fairfield in Victoria.

More on Cercidiphyllum japonicum:

Excellent summation of  Katsura trees: http://www.arhomeandgarden.org/plantoftheweek/articles/katsura_tree_11-2-07.htm

A very complete listing of important plant people, scroll down to Hogg: http://www.plantsgalore.com/people/plant-people-H.htm

Wiki’s listing of the famous Katsura tree and relatives: http://en.wikipedia.org/wiki/Cercidiphyllum

When I finished Horticulture school in North Vancouver I was lucky to be picked to work a practicum position over the summer months while school was not in session(the rest of the year students did the work). It was like another 4 months of school which I was paid to attend. We did all the jobs needed at Park & Tilford Gardens ranging from pruining in the rose garden to maintianing the baskets in the huge parking lot. Along with Park & Tilford there was another much smaller shopping center we ocasionally did work at, this is where I learned first hand why Firethorn(Pyracantha species)  it’s well deserved  name.

The bright berries of  this Firethorn show up well against this enterance.

The bright berries of this Firethorn show up well against this enterance.

The tip of every branch is ended with a stout thorn which is often completely hidden by the dense evergreen foliage. The first time I pruned one of these shrubs, my leather gloves where punctured and slashed. I also was punctured and it did burn a bit, I was told this was caused by the chemicals the thorn exuded. The name Pyracantha(Pyrakantha) literally means ‘fire-thorn’ in Greek – pyr meaning fire and akantha for thorn.

A wonderfully creative use of Pyracantha espaliered along the enclosure of the Japanese Gardens found at Glendale Gardens in Saanich

A wonderfully creative use of Pyracantha espaliered along the enclosure of the Japanese Gardens found at Glendale Gardens in Saanich.

There are several species of Pyracantha which have been crossed to give us a range of colorful berries and slight variations in leaves. Firethorns come from an area starting in Southern Europe and traveling across Asia to Taiwan. Several species are found in China. Pyracantha coccinea which is found in Italy into Asia Minor was the first to be used horticulturally. It was more formally introduced and named in 1629.

The leaves of this specimen are distinctly different then most commonly seen forms of Firethorn.

The leaves of this specimen are distinctly different then most commonly seen forms of Firethorn. This is Pyracantha 'Navaho'.

Firethorn is one of the most versatile of all shrubs and is used in challenging and varied sites. Often we first come across this shrub used as a barrier in parking lots or  as hedges. In those cases it often is severely pruned and most of its colorful berries are lost. It makes an interesting free form shrub if given the space it needs, as it grows quite large. Better use will be where the berries are highlighted as a wonderful fall feature.  the berries are also edible and one can make a tasty jelly with them.

A colorful espaliered Pyracanatha at the back of a grocery store in Sidney B.C.

A colorful espaliered Pyracanatha at the back of a grocery store in Sidney B.C.

Pyracantha can be worked into most situations. To get the best display of berries and flowers grow them in full sun, they are not particular about soil and will take any situation as long as it is not water-logged. They need adequate water during their May-June blooming period to produce a good berry crop. Firethorn adapts well to poor soil and drought conditions, here we have droughts every year from June through October with no damage to these tough shrubs.  they also survive well in areas with air pollution.  Pryacantha are surprisingly hardy as well, regularly tolerated -15c(-5f) which might cause them to loss some of their leaves.

A stunning yellow form which is rarely seen here. It might be Pyracantha 'Shawnee' but I am not sure.

A stunning yellow form which is rarely seen here. It might be Pyracantha 'Shawnee' but I am not sure.

As you can see, Firethorns can grow to be very tall and wide. It is possible to have a shrub which grows to a space of 4.5m x 4.5m(15ft x 15ft).I have seen them pruned very thin and grown to hide an ugly chain-link fence.   Fortunately Pyracantha can easily be pruned hard into attractive shapes as well. One of the most interesting examples I have seen was when I was in Japan visiting my sister. Christmas trees were created by twisting 2 color forms together into a traditional tree shape, with the berries as bright ribbons of gold and red. they were very festive and all that was missing where the presents. It was very impressive and probably expensive to create.

A very long driveway with a double Pyracantha hedge. This is the famous Woodwyn Farm  in Central Saanich.

A very long driveway with a double Pyracantha hedge. This is the famous Woodwyn Farms in Central Saanich.

When selecting a Firethorn consider the space it will take up first. Many of the newer varieties are smaller and there are even some very compact forms which are used for Bonsai. Choose a berry color which will stands out best for where it is planted. Here the most commonly seen form is Pyracantha ‘Mohave‘ which has a bright orange berry, it is hard to find any other colors which is a pity.

Pyracantha 'Mohave' growing on an arbor, a popular choice in townhouses and condominiums.

Pyracantha 'Mohave' growing on an arbor, a popular choice in townhouses and condominiums.

To learn more about Firethorns:

How to grow this thorny customer: http://www.floridata.com/ref/P/pyra_coc.cfm

A little about the different species of Pyracantha: http://en.wikipedia.org/wiki/Pyracantha

Until we meet again….

When I came to live on the coast i was surprised to see how some plants were used. the climate here is just a notch below where many tender annuals will grow as perennials such as Snapdragons which winter over, sometimes for many years like the ones outside my kitchen window. Others are house plants elsewhere like Fatsia which grows as an attractive shade tolerant shrub here. One of the most surprising to me was the delicate and dainty Cyclamen which even as a house plant where a mystery to us. It was quite thrilling to find that Cyclamen hederifolium(Ivy-leaved Cyclamen)produce an especially abundant display here.

The delicate and dainty Cyclamen hederifolium blossom.

The delicate and dainty Cyclamen hederifolium blossom.

Cyclamen hederifolium was named in 1789 by Aiton but for many years has wrongly been sold as Cyclamen neapolitanum. More recently it has been split into varieties which refer to where it is found. C. hederifolium var. hederifolium and C. hederifolium var. confusum which we non-specialists can say are basically the same. we do know that these plants do grow in a wide area from southern France down into Italy and its islands. Then it moves east through Croatia, Bosnia down through Greece and it’s many islands over to western Turkey. It grows in a wide range of terrains from sea level up to 1400m(4300ft). It ranges from the richer soils of woodlands to maquis and gariques which have dry thin soils and occur on the dry lower mountainous slopes of the Mediterranean area.

The summer drought here does not bother Cyclamen hederifolium at all.

The summer drought here does not bother Cyclamen hederifolium at all.

There are many places I have found these beauties. Playfair Park has the best and most bountiful display right now in amongst it’s Rhododendron collection.  In Finnerty Gardens you will find them dotted about in shady spots. I also found them out along a country roadside where they have naturalized in clumps.Cyclamen is from the ancient greek ‘kylos’ meaning circle which refers to the shape of  the corm it’s growth springs from. One Cyclamen hederifoliums’ common name is ‘Sowbread’ which refers to Cyclamen which is said to be the favorite food of swine in southern France and Italy. Ivy-leaved and ‘hederifolium’ refer  to this Cyclamens the attractive leaves.

The interesting markings of Ivy-leaved Cyclamen are varied and colorful in the cool grey, drab winters here.

The interesting markings of Ivy-leaved Cyclamen are varied and colorful in the cool grey, drab winters here.

There are several species of Cyclamen which are seen regularly in gardens here. Cyclamen coum is the other most commonly grown variety. It is easily separated from Cyclamen hederifolium by it round, kidney shaped leaves and it bloom period which is in the early spring.  Both are easy to grow and have long lasting, attractive foliage.

Cyclamen coum have rounded leaves and bloomin in Febuary and March.

Cyclamen coum have rounded leaves and bloom in February and March.

Cyclamen hederifolium grow from a thick woody corm which is bulb-like.  This corm helps the plant survive the long hot, dry summer season in the Mediterranean.  It is easy to grow these beauties. They like to grow in fun sun to part shade in a location with soil which has at least a good part in leaf mold.  Plant the tubers  with their budding side up  3-5cm(1/2-1 1/2in) deep. Avoid planting in an area which has summer wet as this is the time of rest for this species. Water throughout fall into late spring as this is the growing season. These plants grow well under dappled shrubs and are also excellent container plants. In the wild pink is the most common color, while in cultivation whites are much more commonly seen.

LushCyclamen hederifolium plants are attactive in the dead of winter at Playfair Park.

Lush Cyclamen hederifolium plants are attractive in the dead of winter at Playfair Park.

Ivy-leaved Cyclamen spring from the earth and remind us that summer is waning.  Autumn is about to come forth with all it’s brilliant shades and slowly the seasons change with longer nights to come.

More about Cyclamen hederifolium:

From the Cyclamen Society: http://www.cyclamen.org/hederif_set.html

How to grow Cyclamen: http://www.hardycyclamens.com/grow_hardy_cyclamen.html

Dave’s Garden always has interesting comments from other gardeners: http://davesgarden.com/guides/pf/go/1590/

Until we meet again….

Every year this late in the season many of the native trees and shrubs here are suffering from drought conditions and start shedding their leaves. Fall here is drab with dried brownish leaves caused by the dryness. My mother commented on how drab it is here compared to the interior where glorious golden Birch and Poplars color swaths along hills and valleys. Happily there are good plantings in the mot surprising places which are enlivened with the best of fall colors from around the world. One place near me is a big mall which has spectacular shades or orange, peach and reds starting with the Sweet Gum(Liquidambar styraciflua) which provides a backbone of crimson running through the parking lot.

The Sweet Gum trees in Broadmead Village Shopping Centre in Saanich B.C.

The Sweet Gum trees in Broadmead Village Shopping Centre in Saanich B.C.

We are lucky here that we can grow plants from anywhere in the world. Sweet Gum come from south eastern North America, growing from Connecticut in the north moving west to the very southern edge of Ohio and south to Florida and down through mexico into mountainous areas of Guatemala.  They have long been used by the various native groups medicinally. Medicinally the resin(sweet gum or liquid amber)  was used as a balm for various ailments but has been found to be not particularly useful. It’s sweet scent has meant it has been used in the as a fragrant adhesive, the manufacture of incense as well as in perfume industry. The resin was collected and used as a chewing gum. At one time the gum was mixed with wild tobacco and smoked at the court of the Mexican emperor.

Liquidambar styrciflua (Sweet Gum) are amoung collection of trees at  the Institute of Ocean Sciences in North Saanich.

Liquidambar styrciflua (Sweet Gum) are among collection of trees at the Institute of Ocean Sciences in North Saanich.

Francisco Hernández (1517-1587) was a botanist studied Mexican flora and was the first to write about Sweet Gum trees in his work published in 1651. He wrote about a large tree which produced a fragrant gum which was amber in color. The tree was brought to Europe by John Bannister( a missionary) in 1681 and specimens were planted at Fulham Palace Gardens. At that time it was called Styrax liquida.

The fruit of the Sweet Gum tree is a multi-capsuled bauble which is unpleasant to step on.

The fruit of the Sweet Gum tree is a multi-capsuled bauble which is unpleasant to step on.

One of the main reasons for planting Liquidambar styraciflua is it’s wonderful fall colors. It has a very wide range of shades ranging from a black plum through reds and crimson into oranges and peaches. This quality makes many people long for this tree when they move to other places. There is nothing like seeing the hills dotted with the flaming reds as autumn  as it starts to cool off. The leaves of this tree seem to keep their color for extended periods than many others, so we get to enjoy the effect for longer than most other species which drop their leaves quickly after they start to color up.

A crimson bed of Sweet Gum leaves under a crispy brown Red Oak leave.

A crimson bed of Sweet Gum foliage under a crispy brown Red Oak leaf.

Sweet Gums are often mistaken for Maples and they are not. Liqiudambar styraciflua are members of the Witch Hazel family. You can tell they are not maples by their fruit which is a spiky ball. Their leaves are attached to branches in an alternate pattern, whereas Maple leaves are always in opposite pairs. Sweet Gums also have interesting corky twigs which are ditinct from smooth Maple branches.

The very 'Maple-like' leaves of Liquidambar styraciflua.

The very 'Maple-like' leaves of Liquidambar styraciflua.

Sweet Gums do grow to be stately trees of up to 40m (130ft) so placement is important.  They tolerate zones 6-10 (-5c and up). They grow best in deep, rich, slightly acid moist soil. These are trees which like wet conditions and often grow in swampy areas. Full sun is a must to get the best color display in autumn. I see these trees used in many places, boulevards, parking lots school yards and other tough places.  They are also used as specimens. there are quite a few cultivars (clones) to choose from which give options in hardiness, shape and form, less seedy and color options. There should be one that will fit into any need.

Shades of Liquidambar styraciflua in a pond.

Shades of Liquidambar styraciflua in a pond.

Be sure to be on the look out for Sweet Gum in the coming weeks as the autumn season becomes  more pronounced in your area.

More About Liquidambar styraciflua:

Some excellent photographs of the flowers, fruit and bark of Sweet Gum: http://www.duke.edu/~cwcook/trees/list.html

The Institute of Ocean Sciences in North Saanich has good specimens of many trees: http://www.pac.dfo-mpo.gc.ca/science/facilities-installations/ios-ism/index-eng.htm

Description of growing the tree and list of common cultivars(clones) available: http://oregonstate.edu/dept/ldplants/list.htm

In depth description of growing and knowing Sweet Gums:

http://www.hcs.ohio-state.edu/pocketgardener/source/description/li_iflua.html

Until We Meet Again Later…..

I have worked at several large nurseries over the years and the first was a large company which grew perennials. It was recommended I work there as it was the largest in Canada for that type of plant. I was not disappointed and learned a great deal from the vast array of plants they stocked on a regular basis. It was also interesting to see what plants they would introduce to this area of Canada which is by far the mildest and has the widest range of options. Many plants were new not to just me but in some cases to the rest of North America.  At that time many new plants were originating from New Zealand, South Africa and South America. One spectacular plant is the very late blooming scarlet red Schizostylis (Hesperantha)coccinea or Scarlet or Scarlet River Lily which is from the Drakensberg Mountain area of South Africa.

The spectacularly colored Schizostylis coccinea or Scarlet River Lily.

The spectacularly colored colored Schizostylis coccinea 'Major' or Scarlet River Lily.

Scarlet River Lilies have been known since 1864 when they were brought into cultivation in Europe. The area they come from is quite high up in the mountains 1500-2500m(4900-8200ft.). They also grow in very moist areas, beside stream banks and seasonal islands. It is felt that this is an adaption to their climatic situation which is part of why they have been reclassified to be listed as  Hesperantha coccinea. Other members of Hesperantha grow from corms and Schizostylis coccinea grows from rhizomes. ‘Schizostylis’ refers to the the flower being in parts of 3 which is common with all members of the Iris(Iridaceae) family. ‘Coccinea’ refers to it’s red  flower color which is how it is seen in the wild.

There are up to 30 color forms of Scarlet River Lily which range from pure white to deep scarl

There are up to 30 color forms of Scarlet River Lily which range from pure white Schizostylis cocccinea 'Alba' to deep scarlet.

In the wild Scarlet River Lilies live up to their color name and are good shade of red which works in many situations. Since being brought into cultivation many shades have become known and some are quite delightful. I first  became familiar Schisostylis coccinea with ‘Major’ with large red flowers, then,  ’Sunrise’ which is coral pink and  Mrs. Hagarty which is a lighter pink color.

One of the pink forms of Schizostylis coccinea commonly seen in the Victoria area.

One of the pink forms of Schizostylis coccinea commonly seen in the Victoria area is 'Sunrise'.

As I noted Scarlet River Lilies normally live in moist areas and this feature makes them very useful in the gardens. It is hard to find such bright plants with attractive and disease resistant plants for boggy areas. I much prefer this plant to many of the Irises commonly used as they can become to aggressive. This plant is also easily adapted to other areas where there is adequate moisture in the soil.

A planting of Scarlet River Lillies in a broad border of mixed perenials ans shrubs at Governement House.

A planting of Scarlet River Lillies in a broad border of mixed perenials ans shrubs at Governement House.

When growing  the easy and adaptable Schizostylis coccinea, choose a sunny site for the best show of blooms. Soil should be rich and moisture retentive. Care must be taken to make sure they do not dry out  when they are setting their flower buds as they will be lost. Buds also can be damaged by early frosts. These plants take -10c(14f) and is rated at zones 7 through 10. I have seen them sited in mixed borders, at the base of sunny slopes and along water ways and next to informal ponds and pools.  They also can be used in mass plantings for long blooming fall color.

The clean damage free foliage of Schizostylis cocciniea at this late time of the year is a real bonus.

The clean damage free foliage of Schizostylis cocciniea at this late time of the year is a real bonus.

The overall effect of this plant is relaxed as the leaves and floral stems are often lax. Scarlet River Lilies make great cut flowers, I place the red form in my tall large dark blue glass vase for a wonderful effect. It is best when buying these plants to choose them when in bloom as I think there is quite a lot of mis-labeling happening.

Picture a vase overflowing with spikes of Scarlet River Lilies...beautiful.

Picture a vase overflowing with spikes of Scarlet River Lilies...beautiful.

More about Schizostylis coccinea:

How to grow them:  http://www.telegraph.co.uk/gardening/3324532/How-to-grow-Schizostylis.html

Techincal information about why they have been reclassifed: http://lists.ibiblio.org/pipermail/pbs/2003-February/001617.html

other members of the Hesparantha family: http://www.pacificbulbsociety.org/pbswiki/index.php/HesperanthaTwo#coccinea

Until We Meet Again Later….

Anyone who has a interest in plants will have heard of Linnaeus or at least experienced his worked when looking up a plant name. Carl Linnaeus(1707-1778) was the incredible man who developed the system which we use for naming plants and animals. Linnaeus brought order to already Latin named plants and animals by created a system to classify them by their  physical characteristics. He simplified plant names by giving them 2 parts (binomial), the genus and then the species. Often plants where and still are named from where they come from. One of the 9000 plants Linnaeus named is Verbena bonariensis or Purpletop Vervain or Brazilian Vervain). ‘Bonariensis’ refers to Buenos Aries, Argentina where the original plant sample is likely to have come from.

Verbena bonariensis has clusters of tiny mauve flowers held high above it's foliage.

Verbena bonariensis has clusters of tiny mauve flowers held high above it's foliage.

I first saw this plant at  Park and Tilford Gardens where I worked over the summer in a practicum. It was a nice change from the other Verbenas that I saw and was not too crazy about as they seemed to always get unsightly mildew.  Most Verbenas which we see are annuals and are used in our hanging baskets or bedding out.Verbena bonariensis is well named as Purpletop Vervain as it’s airy stems of flowers are almost like wands of color which is part of it’s charm.

Purpletop Vervain along a path at Glendale Gardens.

Purpletop Vervain along a path at Glendale Gardens.

Verbena bonariensis is a particularly useful plant as it’s flower stems are airy and can weave through other plants easily. It will pop through other plants easily and create wonderful combinations or fill awkward spaces with graceful color in late summer. It is the weaving quality of this plant which makes it a much used plant by gardeners who have just the right situation for it’s use.

This  mauve Verbena bonariensis weaves it's way through a white Agapanthus.

This mauve Verbena bonariensis weaves it's way through a white Agapanthus.

Purpletop Verbena is found growing in Southern Brazil, Argentina and through Uruguay and Paraguay.  It is rated at zone 7-10(-17.7 °C (0 °F)), therefore is often treated as a annual in colder areas. If it likes it’s place it will happily self-seed which in some places can be nuisance. Here we have the occasional cold winter so seeding is never a real problem. Seedlings are easily recognized and removed.  It seems that plants which originate from seed grown plants and not by way of cuttings are said to be more tough.

Verbena bonariensis growing amoung the rocks in the Terrace Garden at Government House.

Verbena bonariensis growing amoung the rocks in the Terrace Garden at Government House.

All Verbenas prefer full sun and good air circulation to prevent  powdery mildew. Purpletop Vervain tolerates most types of soil as long as it is well drained, this will ensure your plant has a longer life. It is advisable to pinch plants back when they are young to produce a bushier plant with more floral stems later int the year. Verbena bonariensis grows 40cm-1.2m(2-5ft) tall and takes a space between 30-60cm(1-2ft) in width.

The bright Purpletop Vervain flowers contrast well with the silvery tones of these plants.

The bright Purpletop Vervain flowers contrast well with the silvery tones of these plants.

Purpletop Vervain is a very useful plant in other ways as well. It is said to be one of the very best butterfly attracting plants and many people can attest to it.  It is often used as a cottage garden plant and is best placed mid border for this use. I have seen it used well in borders of mixed perennials and shrubs. the can be interesting combinations created with variegated and colored foliage of  other plants. Wherever you use it, Verbena bonariensis will add something interesting and people will ask you what plant it is. I know many people have asked me and are always surprised when I tell them this is the more stately cousin to the annual Verbenas in their garden….and they always want to get some!

The tiny long blooming flowers of Verbena bonariensis bloom from June through September here.

The tiny long blooming flowers of Verbena bonariensis bloom from June through September here.

Learn more about Verbena bonariensis:

Who is Carl Linnaeus and why he is so important to science: http://www.nhm.ac.uk/nature-online/science-of-natural-history/biographies/linnaeus/index.html

Wiki page on Purpletop Vervain: http://en.wikipedia.org/wiki/Verbena_bonariensis

Other gardeners experiences with Verbena bonariensis: http://davesgarden.com/guides/pf/go/141/

Until We Meet Again Soon.

Older Posts »