Feeds:
Posts
Comments

Posts Tagged ‘winter interest’

When I was going to for Horticultural training the thing I missed the most was walking in the woods like I could do at Home. I had come from a rural area to a verge large city to go to school and going for a walk was a way to relieve tension from my studies. There was a small park at the end of my street which was undeveloped and I would visit there and find new(to me) plants which where native to the area. One plant I came across looked kind of familiar, like a Heuchera but different, as it turns out it was a close relative. Tellima grandiflora (Fringe Cups) is related to several well-known garden plants and should be seen more in gardens.

Tellima grandiflora (Fringe Cups) are found edging a shade path in Beacon Hill Park.

Tellima grandiflora (Fringe Cups) are found edging a shade path in Beacon Hill Park.

I always am interested in what the botanical latin name of a plant means and how it might relate to it. In the case of Tellima it turns out to be an anagram of another plant which is closely related to it: Mitella. I have found no information on why an anagram was chosen for its name. Another case I know of is for a species of cactus Lobivia which is an anagram of the country which it is found in Bolivia. Grandiflora is not at all unusual and refers to the large flowers.

The common name 'Fringe Cups' refers to the lacy petals of Tellima grandiflora flowers.

The common name 'Fringe Cups' refers to the lacy petals of Tellima grandiflora flowers.

Tellima grandiflora is a plant which grows in the woodlands and dappled light of the Pacific North-west from Alaska through British Columbia, Washington, Oregon into Northern California. This is generally a plant of coastal areas and along the mountains that run just inland. They are also found in the inland wet stripe running through eastern B.C., Washington, north Idaho and Montana. Here on Vancouver Island it is a common site along roadsides and is often mixed with other plants such as Tiarellas, Sedges and Ferns.

Here at U.B.C. Botanical Gardens the Tellima grandiflora grow wild as a natural groundcover in the Asian Garden.

Here at U.B.C. Botanical Gardens the Tellima grandiflora grow wild as a natural groundcover in the Asian Garden.

Tellima grandiflora comes from the Saxifragaeae which has given us many familiar garden plants such as Saxifraga, Heucheras, Tiarella and Fragaria (Strawberry). All of these species have been hybridized and are well used in the garden. Tellima grandiflora may have been hampered in its acceptance because it is a is the only species of the genus and is not represented in any other form in the world. There are records of crosses between Tiarella and Tellima being found as well as that of Tolmeia menziesii crosses but none of these have been seen as worth being developed as they have much smaller flowers than Fringe Cups and the foliage is not unique enough. Only recently has been offered a named Tellima grandiflora ‘Forest Frost’ which to me looks like it probably is mis-named and is fact a cross with a Heuchera. It will be interesting to see what comes of this new plant.

 Winter coloring of Tellima grandiflora often brings out burgundy tones which fade with new growth.

Winter coloring of Tellima grandiflora often brings out burgundy tones which fade with new growth.

Tellima grandiflora for the most part is a well-behaved garden plant. It self-sows in place that it is happy, if this is not wanted all that is needed is to remove the spent flower wands soon after they finnish blooming. It can be somewhat short-lived like many members of the Saxifragaeae family are, therefore i usually keep a few seedlings about to replenish older plants and I like how they will pop up in my pots of Hostas and amongst the hardy Geraniums. Fringe Cups make a good addition to the garden and its foliage and flowers work well in spring when other plants are slow to emerge.

This accidental combination of Meconopsis cambrica, Tellima grandiflora and Claytonia sibirica is charming and bright at the same time.

This accidental combination of Meconopsis cambrica, Tellima grandiflora and Claytonia sibirica is charming and bright at the same time.

Tellima grandiflora is an easy adaptable plant to have in your garden. It like rich, humusy soil which retains moisture well during the dry months of summer. It like dappled positions and will bloom admirably in more shady situations. In overly sunny sites it often has more yellowed foliage and is smaller in its overall stature. This last winter was colder than usual and Fringe Cups came through in great form, no damage is done to the foliage and steady growth is seen in the earliest spring. These plants are typically 60 cm.(2 ft.) high and 45 cm. (18 in.) wide but may be slightly large or smaller depending on conditions. They are rated as tolerating -20c.(-4 f.) which is suspect is with much snow cover. Here the extreme cold might get to be – 15 c. (5 f.) with the wild chill added and they do not suffer.

Tellima grandiflora is incorporated into several gardens at Government House in Victoria. Here it is the Cutting Flower Garden.

Tellima grandiflora is incorporated into several gardens at Government House in Victoria. Here it is the Cutting Flower Garden.

Fringe Cups can be used in a variety of ways in the garden. I have seen them used as accents, mass planted, in woodland and more formal settings. They fit into fragrant gardens and ones for cut flowers as well as shade and winter gardens. They also make an excellent mass planting  and blend in well with many damp tolerant plants. their delicate flowers on tall stems have an amusing effect against very bold foliage. These plants are much better known in Europe than they are here and we should start changing that.

T is for Tellima:

Rainyside has a good page: http://www.rainyside.com/features/plant_gallery/nativeplants/Tellima_grandiflora.html

In case you are wondering about anagrams:  http://www.anagramsite.com/cgi-bin/getanagram.cgi

Washington Native Plant Society page on Tellima: http://www.wnps.org/plants/tellima_grandiflora.html

…………..See you on the trails leading here soon………..

Advertisements

Read Full Post »

This is the time of year when many things are being renewed and many thing are being learned. College and university classes are near the end and are graduating, people are moving to new places and jobs and the gardens everywhere are waking up. People new to gardening are digging their gardens maybe for the first time. This might be the first time a child is spending time wandering in a park wondering about the flowers and looking more closely at them. It is hard to find a more child-like plant than that of Primula denticulata (Drumstick Primula) with its over-sized orb of flowers in very appealing flowers.

 The pure white of Primula denticulata 'Alba' has inspired famous gardeners such as William Robinson to view it to be 'one of the finest of all spring perennials'.

The pure white of Primula denticulata 'Alba' has inspired famous gardeners such as William Robinson to view it to be 'one of the finest of all spring perennials'.

 Primula denticulata is something of an enigma to me as I can not find exactly who or when it was first introduced into the garden. It was first scientifically named in literature in 1804 and has been recollected by plant hunters several times since.The plant is found in a fairly wide area of Asia from Afghanistan to Bhutan and into China. It is found to growing at elevations of  1500-4500 m. (5000 – 14750 ft.). There it is seen on grassy slopes, amongst open shrubs and other areas which tend to be evenly moist throughout the year.

Primula denticulata can be quite variable in its height and coloring and this has lead to some confusion for plant collectors looking for new plants in Asia.

Primula denticulata can be quite variable in its height and coloring and this has led to some confusion for plant collectors looking for new plants in Asia.

Primulas are one of the most popular species of plants which are seen in gardens. There are at least 425 species with over 300 of them found in Asia. 33  more are found in Europe and 20 found in North America. There are societies dedicated to single species that are centuries old and many other societies which have their roots in the Victorian era where several species where highly desirable for collections and collectors. Drumstick Primulas have always been one of the most popular and widespread in gardens throughout the world. Primulas should be grown more in gardens and it is a pity that only a few species are seen here in the Pacific Northwest where the cool marine climate is perfect for them.

Colors of Primula denticulata range from pure white, mauves and lavender shades into deep maroon.

Colors of Primula denticulata range from pure white, mauve and lavender shades into deep maroon.

One of the reasons for the success of Drumstick Primulas is its ease in the garden. It really is a beginners plant which would make a good plant for a gift to a new little gardener. It is a fun plant to include in a childs garden for its naturally whimsical form. It is a tough plant which when happy is easy to multiply by division after flowering or by sowing the seed as soon as its ripe right into the garden.

The brightly colored Drumstick Primula here lead you a route off the main path in the Asian Garden at U.B.C. Botanical Garden in Vancouver.

The brightly colored Drumstick Primula here lead you a route off the main path in the Asian Garden at U.B.C. Botanical Garden in Vancouver.

Growing Drumstick Primulas is easy and rewarding for the smiles you will get from your little friends. They like rich moisture retentive soil and enough water that they do not dry out during the warmer times of the year.  They should be grown in areas where they get some protection from hot summer sun, so dappled light is best in most locations. They also need protection for the flower head which is partly developed in the fall and is dormant during the winter months, it does not like drying winds or being frozen in solid ice which will damage the emerging blooms,cover them with some extra leaves. Primula denticulata are quite hardy and are said to easily take -20 c. (-4 f.). Plants are generally are about 30-40 cm. (12-16 in.) tall and slightly less wide.

This Maroon Primula denticulata is an intense shade which is eye-catching in the garden.

This Maroon Primula denticulata is an intense shade which is eye-catching in the garden.

Primula denticulata can be used in a variety of ways in a garden such as an accent or in containers. They also make a stunning mass planting. they work well with other spring flowering plants and Primula leaves are quite attractive with their thick heathy green slightly puckered texture. Primulas are generally free from pests except for vine weevil grubs which can eat the roots of the plant, it is worth close inspection to remove these if found. Aphids sometimes are a short-lived problem but generally do not real damage.

The bright green leaves and shining orbs of purple Drumstick Primula glow even on a cloudy day.

The bright green leaves and shining orbs of purple Drumstick Primula glow even on a cloudy day.

Visions of Drumstick Primulas:

A collection of  pictures showing the variation in the plant: http://www.primulaworld.com/PWweb/photogallery.htm

A good description of how to grow where to use these plants: http://www.perennials.com/seeplant.html?item=1.445.200

A good article with many suggestions for companion planting: http://www.telegraph.co.uk/gardening/howtogrow/3335307/How-to-grow-Primula-denticulata.html

…………Hope you hop back this way soon…………..

Read Full Post »

There are many plants that just give me the feeling that they have been in gardens for a long time. Plants which are some how familiar when you first see them but you can not think of what it is in that moment. One such plant for me is Kerria japonica (Kerria) which seems sold but was so new to me. Kerria is closely related to the Raspberries (Rubus) on my youth and the stems and flowers are similar.

Kerria japonica 'Pleniflora', the double form is most commonly in gardens.

Kerria japonica 'Pleniflora', the double form is most commonly in gardens.

Kerria japonica was a confused plant when it was introduced by Carl Peter Thunberg in 1776 and was mis-classified as being a member of the Tilaceae (Linden) family. This happened because the sample which was sent back by him not being complete, the specimen was also the double form ‘Pleniflora’ (Yae Yamabuki). On top of the naming problem was the fact that the plant does not come from Japan originally but was brought in from China as an ornamental shrub for gardens in ancient times. In Japan the single flowered Yamabuki (Mountain Spray) has naturalized and become part of the culture as seen in paintings, poetry and other forms of writing. We know that Yamabuki has been in Japan a very long time as the 11th century novel ‘The Tale of Genji’  mentions the plant numerous times.

The more common Kerria japonica 'Pleniflora' on the upper right and on the lower left is the single type.

The more common Kerria japonica 'Pleniflora' on the upper right and on the lower left is the single type.

It was William Kerr who in 1804 sent a living specimen of the single flowered plant back to the Royal Botanical Garden at Kew in England It was there that Kerria japonica  became recognized as being a seperate member of the Rosaceae family. For this reason the plant is now named Kerria to commemorate Kerr.

This unusual double flowered form of Kerria japonica 'Pleniflora' is found at Esquimalt Gorge Park.

This unusual double-flowered form of Kerria japonica 'Pleniflora' is found at Esquimalt Gorge Park.

William Kerr (1779-1814) was a gardener who was born in Hawick on the Scottish Borders and came to garden at Kew. There he was noticed by Sir Joseph Banks who was in charge of sending collectors and explorers throughout the world to bring back plant, animal and geological specimens to be studied and be classified in England. Banks instructed Kerr and then dispatched him to China in 1803 where he was posted at Guangzhou for 8 years. While Kerr was not allowed to travel in China he sent many important plants back from his location which was a port not far from Macao. During the time that he was posted in China it is believed that he became an opium addict and by the time he was re-posted to Colombo, Ceylon(Sri Lanka) in 1812 he was quite ill. In Columbo he was the supervisor of the gardens as Slave Island and at King House.  Kerr is considered to be the first professional of plant hunters which have changed gardening as we know it today.

Kerria japonica 'Variegata' (Picta') has single flowers and  green leaves which are delicately edged in cream. This plant can been seen at Finnerty Gardens.

Kerria japonica 'Variegata' (Picta') has single flowers and green leaves which are delicately edged in cream. This plant can been seen at Finnerty Gardens.

 Kerria japonica is interesting in that the most vigorous form is ‘Pleniflora’ which grows into impressive multi-stemmed clumps. Another thing that stands out for this plant is the beauty of them during the period when they are without leaves, what I am referring to is the bright green stems they have and how they almost glow in the gloomy winter and earliest spring period.

The bright green stems of Kerria japonica put on a show during the drab winter months here.

The bright green stems of Kerria japonica put on a show during the drab winter months here.

Kerria is an easy plant to grow and is easily placed in most gardens. Kerria japonica like filtered sun as its blooms will completely wash out in too much sun. The best locations are under deciduous trees. The like any soil which has average moisture content and will tolerate a drier location when it is established. As you see these plants can become dense clumps, fortunately they are easily pruned after flowers. cut stems by 1/3 to 1/2 or remove them from the base as you would for Rubus(Raspberry) which they are closely related to.

This single flowered Kerria japonica is seen amoungst the mixed perennial and shrub border at Government House.

This single flowered Kerria japonica is seen amongst the mixed perennial and shrub border at Government House.

 Kerria japonica grow from .9 to 1.8 m (3-6 ft.) tall and about as wide, it has strongly ascending branches. It tolerated temperature down to -15 c. (5 f.) and still bloom very well. Give this plant protection from cold winter winds and late frost pockets as this can damage the flower production and makes them smaller and less in quantity.  the plant can be used in many ways, as an informal border, mass planted in mixed deciduous borders and for early spring interest. With the right placement it is a specimen or more usually an accent plant. The Victorian feeling this plant gives off makes this plant an excellent inclusion in heritage and period themed gardens.

Check these links to learn more:

U.B.C. botanical plant of the day: http://www.botanicalgarden.ubc.ca/potd/2011/02/kerria_japonica_pleniflora.php

the ‘In Bloom article from the Japan Times: http://search.japantimes.co.jp/cgi-bin/fe20080402li.html

William Kerr, an important plant hunter: http://en.wikipedia.org/wiki/William_Kerr_(gardener)

………Hope to see you on this path soon………..

Read Full Post »

This is the time of year which is the most exciting in the garden. After a cold winter we wait with bated breath to see what has survived and even will thrive. I note some Rhododendrons seem to have smaller flowers and the Tulips are finally beginning to show their buds. One plant I associate with spring is Mahonia aquifolium (Oregon Grape) which is bursting forth with its bright fragrant flowers.

The Oregon Grape(Mahonia aquifolium) here is a welcome addition to this spring garden of mixed bulbs and native plants.

The Oregon Grape(Mahonia aquifolium) here is a welcome addition to this spring garden of mixed bulbs and native plants.

Oregon Grape is a shrub which is from the west coast of British Columbia south into northern California west of the Cascade Mountains where this plant is generally found as an understory plant to trees such as Douglas Fir and here Garry Oaks. Mahonia was named after Bernard McMahon (1775-1816) who is said to have been the first ‘nurseryman’ in North America, he published the first plant catalogue and the book “American Gardeners’ Calender’  He was the curator of the plants of the Lewis and Clark collection of plants.  Thomas Nuttall honored his friend by using his name as “Mahonia’  for naming a plant (Mahonia nervosa) in the collection.

The bright flowers of Mahonia aquifolium contrast nicely with wine tinted evergreen foliage.

The bright flowers of Mahonia aquifolium contrast nicely with wine tinted evergreen foliage.


The leaves( and leaflets) of the Oregon Grape look similar to that of common Holly (Ilex aquifolium) but are larger, thinner and take on maroon and red tints in winter cold. This past winter was colder than normal here and the red tints are very evident on many plant here. Oregon Grape are well-known to the native people here and have in the past been used for medicinal and food uses.  The roots were used to make a tonic which was used to counteract weariness, loss of appetite  and other similar maladies. the roots contain the alkaloid berberine which is found in  ‘Goldenseal’ and has anti-inflamitory and anti bacterial properties. The fruit was as mild laxative. As a food the berries were sometimes mixed with other sweeter berries to make them more palatable. The fruit is very bitter until touched by frost and then can be used for making  jelly. Another way this plant has been used is for dying items, the roots have distinctive yellow sap and the berries provide purple coloring.
Oregon Grape (Mahonia aquifolium) produced copius crops of blue fruit which are eaten by birds after it has been touched by frost to sweeten it.

Oregon Grape (Mahonia aquifolium) produced copius crops of blue fruit which are eaten by birds after it has been touched by frost to sweeten it.


Mahonia aquifolium is much used in landscapes today and is often seen as a barrier plant in parking lots where it often is neglected and abused, there are better plants for that purpose. I like to see it used in more creative ways. One of the more interesting uses I have seen is as a background planting to Hydrangeas at Finnerty Gardens in Victoria. The garden has a collection of Hydrangeas which are dormant when our lovely Oregon Grape blooms. Oregon Grape works as winter and early spring interest and then the Hydrangea will take over for the late spring into autumn with a consistent evergreen background to show it off.
Here at Finnerty Gardens the Mahonia aquifolium (Oregon Grape) will bloom while the Hydrangea shrubs are leafing out in front.

Here at Finnerty Gardens the Mahonia aquifolium (Oregon Grape) will bloom while the Hydrangea shrubs are 'leafing' out in front.


Oregon Grape is an easy plant to grow if it is given the right conditions to grow in. Mahonia aquifolium likes part sun to full shade with the only exceptions in more northern areas where light is not as strong as in the south. For better flower and fruit production give it better light.  It grows best in moist, rich, well-drained soil which is more acidic than alkaline. It does poorly on thin, compacted and clay soils which stay wet and are poorly drained. Here it grows under the light shade of deciduous trees and mixed with other shrubs. It is best to place these plants where they will avoid the drying winds of winter which can do much damage to broad-leaved evergreens here. Most of the Oregon Grape I have seen here overwintered well with little damage, the added bonus was richer maroon tints to the foliage from the winter cold.
The maroon tints of the foliage of Mahonia aquifolium (Oregon Grape) were quite spectacular this spring.

The maroon tints of the foliage of Mahonia aquifolium (Oregon Grape) were quite spectacular this spring.


Mahonia aquifolium is a slow-growing multi-stemmed shrub which over time can grow to be well over 2 m. (6 ft.) tall. With the branches generally being very ascending , this shrub tends to have a narrow profile. The plant can easily be managed by removing branches from the base. Use this shrub in your native garden or in wilder places which might be a little out of the way. The leaves are prickly so keep it away from narrow paths or tight areas where you might brush up against it. Mahonia aquifolium is well used in mass planting or a specimen. It attracts bees by providing an early source of honey when there might be little available (the flowers are honey scented as well).  It is known to hybridise with other Mahonia species and these crosses can give varied results in height and sprawling habit.
I find the variation in the flower panicles  of Mahonia aquifolium (Oregon Grape) interesting, some are stumpy like this one while others are loose and open like the 2nd picture in this article.

I find the variation in the flower panicles of Mahonia aquifolium (Oregon Grape) interesting, some are stumpy like this one while others are loose and open like the 2nd picture in this article.

Mahonia is a much loved plant and has been adopted as the state plant of Oregon which is found between California and Washington. It has many appealing atributes to make a good garden plant which should be seen more ofte. There are 12 Mahonia species in North America and some of these have been listed as noxious weeds, I think that there might be some confusion in listing this species there.

 

Links a’plenty for you:

Washington State Native Plant Society page on the plant: http://www.wnps.org/landscaping/herbarium/pages/mahonia-aquifolium.html

The ‘Wiki’ page is interesting: http://en.wikipedia.org/wiki/Oregon-grape

Bernard McMahon and his contribution to gardening in early America: http://www.monticello.org/site/house-and-gardens/bernard-mcmahon

……….Hope to see you here again very soon………

 

Read Full Post »

Many plants become famous for things other than their flowers. The form and structure of a plant influences how it is used in a garden. The overall color and texture of a plant contributes much to a plants use. Some plants remind people of other things and their name reflects that. Euphorbia species cover all these bases and more. Euphorbia myrsintes(Myrtle Spurge) has wonderful color, texture and form as well as an element which can be somewhat sinister.

 Mrytle Spurge(Euphorbia myrsinites) sprawls across a rock earlier this year.

Myrtle Spurge(Euphorbia myrsinites) sprawls across a rock earlier this year.

Myrtle Spurge has been known from the earliest time. Theophratus (372-287 B.C.) said it looked like a kind of  ‘Tithymallos’ and called it ‘Myrtle-like’. Dioscorides described it as ‘hath leaves like to Myrsine, but greater and strong and sharp and prickly on top’. We also come to Pliny who said ‘Mytites had medicinal uses. Flower heads where harvested and dried long before they had started to swell to blossom and were used with other plants and said to heal sores in the mouth and used as an emetic. We of course do not use this plant for any type of medical or edible use today.

The chartreuse flowers of Euphorbia myrsinites contrast with the  distinctive sea green foliage to produce a unique sight in the garden.

The chartreuse flowers of Euphorbia myrsinites contrast with the distinctive sea green foliage to produce a unique sight in the garden.

With such an ‘old’ plant we are not the least surprised to find out where Euphorbia myrsinites comes from; the Mediterranean. Euphorbia myrsinites grows naturally in a wide area from the Balearic Islands near Corsica, moves across southern Italy through Croatia, Bosnia Hercegovina and Montenegro and through Greece. From Greece it is found in Turkey and Asia Minor south and east all the way to Iran. It is found in rocky and sandy areas as well as in open areas under open forests often populated by Pine. The plant grows from near sea level into mountain slopes.

The serpentine foliage of Euphorbia myrsinites becomes grayer in the drought and heat of summer here.

The serpentine foliage of Euphorbia myrsinites becomes grayer in the drought and heat of summer here.

All Euphorbia species have milky sap wich is released when the plant is damaged. The sap is a form of natural latex which is sticky and contains Diterpene esters which are often irritating to people who have sensitivities. Not all people react to this chemical in the same way I for years propagated many species of Euphorbia and had no trouble, I was always careful when doing cuttings and did my work in well ventilated areas and washed my hands throughly. If you have any concerns do not grow Euphorbias which include Poinsettia of Christmas, or grow them in area where they are out of the way.

A seedling Myrtle Spurge is seen growing in a crevice with native Sedum and Oregon Grape.

A seedling Myrtle Spurge is seen growing in a crevice with native Sedum and Oregon Grape.

Euphorbia myrsinites grows in Victoria well as long as it has good drainage. The best plantings I have seen here are at Government House in the Terrace Garden which is a steep cliff area with gardens running down its face. In this garden there are many tender and exotic plants as well as those which are drought tolerant and can live in areas with little soil. Several species of Euphorbia are featured there. There is also a rough stone staircase which has plants in the cracks including todays plant. Another interesting planting is found at Glendale Gardens where these plants are displayed in the drought tolerant garden.

The rock staircase in the Terrace Gardens at Governemnt House is a perfect place to display Euphorbia myrsinites.

The rock staircase in the Terrace Gardens at Government House is a perfect place to display Euphorbia myrsinites.

Euphorbia myrsinites is easily grown in soil which is extremely well-drained and not to nutrient rich. Full sun at all times in an absolute must. These plants ideally like to sprawl on rocks or gravel or hand slightly over edges which they dry quickly from rains.  This plant has thick leaves and a thick base which is almost a caudex which helps it withstand drought conditions for several months at a time. These plants are excellent in large rockeries, containers, slopes and out of the way crevices which are hard to maintain. Creeping Spurge grows about 15-20 cm.(6-8 in.) tall and sprawls 45-60 cm. (18- 24 in.). It is rated as growing in zones 5 though 9 or tolerates temperatures down to -29 c (-20 f.) with perfect drainage and protection from winter winds.

Here the thick caudex-like rootstock is visible where this Myrtle Spurge has been pulled out slightly.

Here the thick caudex-like rootstock is visible where this Myrtle Spurge has been pulled out slightly.

Myrtle Spurge often is not long-lived but can produce seedlings which can be moved into place. Seedlings also are easily removed if not wanted or remove the flower heads before the seed has ripened. In some areas Euphorbia myrsinites has been classified as a noxious weed for it has been able to seed and spread into unwanted areas. It can not be grown or brought into Colorado, Oregon or Washington states. It is up to us as  nursery growers and gardeners to make sure we are not causing a problem by not taking care of our plants. by removing spent flowers or disposing of seed heads we can make sure that attractive but foreign plants do not become a problem in the future.

 
Now for some interesting and informative links:

Wiki page of this plant: http://en.wikipedia.org/wiki/Euphorbia_myrsinites

How this plant is viewed at Poisonous Plants of North Carolina: http://www.ces.ncsu.edu/depts/hort/consumer/poison/Euphomy.htm

The Drought Tolerant Garden at Glendale Gardens: http://www.glendalegardens.ca/droughttolerantgarden.php

Expereinces of the people of Dave’s Garden, pro and con:  http://davesgarden.com/guides/pf/go/781/

………See you very soon right back here………

Read Full Post »

I am always delighted when I come across plants which are new to me and are extra hardy, this is because I grew up in a much colder place. Many species will not live in a place that regularly visits temperature below -25 c. (-13 f.). It is particularly cum with interesting to find shrubs which are have colorful large flowers which bloom very early in the year and are not damaged by frost. One species which has been worked on to create more cold tolerant plants is the rhododendron. One of the important species which has been long known and is important in developing hardier hybrids with attractive flowers is Rhododenron dauricum (Dahurian Rhododendron) It has brightly colored flowered at this time of the year and is one of the toughest of the species.

 The Dahurian Rhododendron (Rhododendron dauricum) is a bright beacon in early spring.

The Dahurian Rhododendron (Rhododendron dauricum) is a bright beacon in early spring.

Rhododendron dauricum comes form a fairly wide area of northern Asia. Its path begins in the Altai mountains of eastern Siberia and moves east all the way to the Sakalin Island and into Hokkaido – the most northern main Japanese island. The species is found in Mongolia,  northern China and in through North and South Korea as well.  As the plant covers such a wide area there is some variability in color and form which has added some confusion in classification. Linnaeus first described this Rhododendron in 1753 in his text Species Plantarium. He got his specimen from the botanical garden in St Petersburg Russia. It is possible that the sample had been collected by Messerschmidt in 1736 and already described by Johann Amman in 1739.

 This is one of several Rhododendron dauricum found at Finnerty Gardens.

This is one of several Rhododendron dauricum found at Finnerty Gardens.

Rhododendron growers are always trying to broaden the range of their plants in many ways such as broader colro range, larger flowers, hardiness and bloom time. Rhododendron has played an important roll in making the species more avaialbel to those living in colder climate. Rhododendron dauricum is often used as pollen parent with other species to add cold hardiness to the hoped for hybrids. Probalby the most famous hybrid is  called ‘PJM'(PJ Mezitt’) and is a mid pink color, it has smaller leaves which densely clads which slowly grows to about 2m.(6ft.). It was developed at Weston Nursery in Massetussets by Peter John Mezitt (PJM). He crossed dauricum with Rhododendron minus to creat this grest new plant. Other selection were also made but have not become so famous.

 2 lesser known dauricum hybrids are Rhododendron 'Olga Mezitt' in the background and Rhododendron 'Black Satin' in the upper left corner.

2 lesser known dauricum hybrids are Rhododendron 'Olga Mezitt' in the background and Rhododendron 'Black Satin' in the upper left corner.

Rhododendron dauricum is classified as being semi-evergreen which is why most of the leaves are not seen in the winter,and the flowers are even more noticeable when they are in bloom. Here most winters the plants do look barren except for a few leaves and the buds which is tidy in appearance. This plant has smaller leaves and fairly fine stems and has an open airy quality about it. Most of the plants I have seen around here are still fairly young and many are taller than wide at the moment.

 This large Dahurian Rhododendron is found at Finnerty Gardens and the largest one at the gardens.

This large Dahurian Rhododendron is found at Finnerty Gardens and the largest one at the gardens.

Rhododendrons are fairly easy to grow and this species is also easy. Rhododendron dauricum likes acidic moist soil which is well drained. Best placement is in part or dappled shade with some protection from bright summers sun and drying winds. I have seen these plants grow in quite deep shade and still put on a grest floral display at this time of the year.These plants can be used in a variety of ways such as massed, as an accent or specimen in a winter garden or in woodland settings. The floral color will draw your eye to wherever you choose to grow this plant.

 The small vibrant flowers of Rhododendron dauricum pack a bright punch on gloomy late winter days here.

The small vibrant flowers of Rhododendron dauricum pack a bright punch on gloomy late winter days here.

Dahurian Rhododendrons grow to a fairly large 2m.(6ft.) by the same width.  Rhododendron dauricum is rated as being zone 3b or -37c.(-35f.). They are rated as H4 or the hardiest of Rhododendrons. I have read notes from central  Alberta to Newfoundland of how well these plants grow in the extreme conditions of different parts of Canada. If you live in a colder area this is one plant you must try to find, I am sure with a little attention this plant will give you years of pleasure.

Some Dahurian links for you:

Where is Dauria:http://en.wikipedia.org/wiki/Transbaikal

An article about Dauricum hybrids which are grown here:http://www.rosebay.org/chapterweb/specdaur.htm

A technical description of the plant is here: http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200016392

Information about the PJM group of Rhododendrons: http://www.hort.uconn.edu/plants/r/rhopjm/rhopjm1.html

……..Hope you wander this way soon……

Read Full Post »

Sometimes I have to come back to review a plant and sometimes I like to look more closely at a group of plants. It is often the case that i have found another member of group whether it is a hybrid or completely new species. In this case it is because I see more of the species that I am seeing planted, which is a very good thing. I am particularly taken by the Hamamelis species which is one of the first plants I learned when I first went to Horticulture classes many years ago and was the very first plant I wrote about in this blog. Today I wish to look at Hamamelis x intermedia  ‘Pallida’ and ‘Arnold Promise’, 2 of the best yellow forms of  Witch Hazel around.

 On the upper right is Hamamelis x intermedia 'Arnold Promise', on the lower left is H x i. 'Pallida' and in the backgorund is parent Hamamelis mollis.

On the upper right is Hamamelis x intermedia 'Arnold Promise', on the lower left is H x i. 'Pallida' and in the background is parent Hamamelis mollis.

The group Hamamelis x intermedia is a natural crossing of the Chinese (mollis) and Japanese (japonica) species. In named forms this has happened far from where they might meet in the wild, usually in plant collections. In the case of Hamamelis x intermedia ‘Pallida’ it is likely to have occurred at Kalmthout which was a nursery in Holland where the seed came from. The seed was germinated and the seedlings were grown for some years and carefully watched. Different color variations were seen and named around 1932. The original plant still is located at Battleston Hill in Wisley and must be quite a slight at this time of year. Hamamalis x intermedia ‘Pallida’ has a pale yellow color and a pleasing cirtusy-spice scent.

Finnerty Gardens has several Hamamelis x intermedia including this group located near the main enterance naer the chapel.

Finnerty Gardens has several Hamamelis x intermedia including this group located near the main entrance near the chapel.

The specimens of Hamamelis x intermedia ‘Pallida’ I have seen flower extremely well and have large flowers which show up well in the dark background the often grey skies and evergreen trees here.

 Hamamelis x intermedia 'Pallida' flowers are beautifully colored and delacately scented on this cool sunny day.

Hamamelis x intermedia 'Pallida' flowers are beautifully colored and delicately scented on this cool sunny day.

Hamamelis x intermedia ‘Arnold Promise’ is another chance cross which occurred at the famous Arnold Arboretum near Boston, Massachusetts  William Judd, propagator of Arnold Arboretum collected seed from a Japanese Witch Hazel which was at the arboretum and germinated in around 1928. He assumed at the time it would be  pure Hamamelis japonica plants. Later it was realized that the seedlings were in fact a cross between a mollis plant which was nearby and the japonica. The original seedlings were grown on for a number of years until they started to flowers and selections were made. Several plants were named and ‘Arnold Promise’ was named and proved to be the best of the bunch. In 1963 the plant was released by the Arboretum for sale to nurseries.

 This Hamamelis x intermedia 'Arnold Promise' is perfectly placed at Finnerty Gardens to draw your eyes to the end of the path where it intersects with another.

This Hamamelis x intermedia 'Arnold Promise' is perfectly placed at Finnerty Gardens to draw your eyes to the end of the path where it intersects with another.

Arnold Promise Witch Hazel has a slightly darker flower than ‘Pallida’. The main difference which I see in the 2 plants is the way they grow with ‘Pallida seeming to be more horizontal  branches and Arnold Promise having a more vase shaped ascending branch pattern. On the day I photographed both of these plants it was cool and crisp with a good wind and the scent of the flowers was not strong.

 

 Hamamelis x intermedia 'Arnold Promise' has a delicate coloring and scent and is beautiful in this deep winter month.

Hamamelis x intermedia 'Arnold Promise' has a delicate coloring and scent and is beautiful in this deep winter month.

Both ‘Arnold Promise’ and ‘Pallida’  are becoming more popular as are all the Witch Hazels. These are wonderful and adaptable plants which can be used in a variety of ways to increase the pleasure of your garden. As mentioned they are fragrant, on warm days there is no more pleasing aroma I know of to encounter, the citrus-spice scent is warm and inviting. The foliage is attractive and similar to that of Corylus (Hazelnut) with broad green leaves which turn shades of butter to gold and tints of peach in autumn. The seed pods are also interesting on the bare branches during the early winter.

 

The attractive leaves and seed pods of Hamamelis.

The attractive leaves and seed pods of Hamamelis.

All Hamamelis species are woodland plants and like to have rich humus well-drained soil. they need deep watering to promote a good widespread deep root system to  help sustain them during drier times. They prefer a dappled location which offers some protection from strong summer sun. These plants have low widespread branches and should be carefully placed so little pruning is needed.  These 2 hybrids grow to the same size 4m(13ft.) heigh by the same wide. All named varieties are grafted or budded onto usually less attractive species plants and suckering from under the graft should be removed when seen.   Both of these hybrids are rated at tolerating temperatures down to -25c (-13 f.) or zones 5 through 9. These are pest and disease plants which are long-lived and will give you a lifetime of enjoyment.

Pallida or Arnold Promise, What will it be:

Hamamelis x intermedia hybrids: http://www.frenchgardening.com/inprofile.html?pid=309505181913723

Arnold Arboretum’s article about ‘Arnold Promise’ (Pdf): http://arnoldia.arboretum.harvard.edu/pdf/articles/842.pdf

RHS page on ‘Pallida’: http://www.rhs.org.uk/Gardens/Wisley/About-Wisley/Plant-of-the-month/January/Hamamelis-x-intermedia–Pallida-

……..Hope to see you soon on a bright cheery path near here……..

Read Full Post »

Older Posts »

%d bloggers like this: