As the weather allows, I’m still working out in the garden. Temperatures today reached the mid-forties and it was sunny. Ordinarily that would be good weather for garden work, but today the wind was terrific and relentless. I spent about two hours in the early afternoon working with the plants in the protected cold frame. It was good to see that many of the Narcissus of the cantabricus-romieuxii sorts are budded and should be in bloom soon. Two of the tazettas, 'Ziva' and Narcissus pachybolbus, have scapes up, too.
There are fresh flowers of Crocus ochroleucus in one of the unprotected frames, and some Crocus longiflorus on their last leg are still colorful. All of the fall-blooming crocuses were plated very late this year, and so in effect I lost this year of bloom (although some are still trying).
Tomorrow I’ll do the official New Year’s Day count. I’m not expecting much: the temperature is expected to drop into the low 20s F by morning.
Lycoris aurea of commerce has produced a thick clump of foliage this year, and that’s raising hopes that it might bloom next fall. This grows in the protected frame: the foliage will typically not survive our winters in the open ground. Several of these have been acquired from various sources during the last two years; they all agree in having yellow-green foliage. The plants grown in the past had much darker foliage. All of this adds to the anticipation of the first flowers.
A blog exploring the pleasures of gardening in Montgomery County, Maryland, USA.
Wednesday, December 31, 2008
Friday, December 19, 2008
Season's Greetings Everyone!
Welwitschia mirabilis
The Welwitschia gave me a scare about two weeks ago. It went from a healthy green to a pale, dull green with much too much yellow. It was still green, but it reminded me of pea soup.
I've had this plant for eleven years now; I acquired it as a one-year old seedling in 1997. It was raised from Silverhill seed by a member of our local rock garden group. Earlier this year I acquired more fresh seed from Silverhill, but I have not attempted to germinate it yet. I sent Rachel Saunders a photo of my eleven-year-old plant. When I did this, a little voice warned me that some envious demon lurking in the background might interpret this as the sort of boasting which merited a bit of taking down. So when my plant began to lose color, I momentarily wondered if I was getting what I asked for.
My first impression was that I might have over-watered the plant. I carefully tipped the pot sideways to see if any water would drain out. But there was no sign of water. Then I tried to remember the last time I had watered the plant. Hmmm......maybe it just needs a drink. So I watered it. Within a few days the good, healthy color began to return and I breathed a major sigh of relief. I'm very attached to this plant. I expect it to be the Gila monster of my adult life (when I was a kid I had a Gila monster which lived for a bit over twenty-five years).
Several years ago the Welwitschia put on another, more dramatic scare. Again, it was shortly after I brought it in for the winter. For several days it sat in my bedroom far from any window and without any supplementary light. And then it happened: its usual healthy green color began to change. The color became streaked with mustard yellow and rusty red. At one point most of the surface of the leaves was brilliant iridescent blue such as is seen in Selaginella uncinata. It was a bizarre sight, and I was panic stricken. But after a few days under fluorescent lights the odd colors began to fade, and eventually it was back to normal.
When I'm a very old man I might will this one to some public collection; but for now it's staying put.
Friday, November 21, 2008
November, the busiest month of this gardener's year
If you go back and look at the postings from 2007, you'll notice that there were no postings in November. Today's post might very well be the only one for November of this year. Here's why: November is the busiest month of the gardening year for me. On top of that, it's also a hard month to get good value for your time: not only are the days getting shorter, but the sun is low in the sky and frankly very annoying. Luckily, the sunshine is abundant, and it usually takes the edge off the bite in the wind. We'll soon be reaching the point where the sun will rise hours before the ground defrosts enough to work - if it defrosts at all.
This is the time of year I rework the garden; it's the time of year when the plans for next year are put in place. It's prime transplanting time for most herbaceous and woody plants. And this year, more than anything else, it's bulb planting time.
Beginning in late May, I dug as much of the bulb collection as I could. Little by little I've been replanting it during the last few weeks. There is a lot of documentation involved, and that really slows things down. New beds have been prepared.
In addition to that, I binged on tulips again this year. The last time was about five years ago. What do I mean by binging on tulips? I bought one each of every tulip on offer in local garden centers and ordered others from mail order suppliers. I do this every so often just to see what these tulips look like in real life.
In the past I let these tulips on their own after blooming, and as a result most did not survive for long. Then, years ago, I noticed a place in the garden where the tulips persisted indefinitely and bloomed yearly. The plants got smaller, and the clumps got thicker, but they were still there and evidently thriving. This was happening at the edge of a dry-walled raised bed: the drainage there must have been excellent. I tried another group of tulips in a different raised bed and five years later they are still blooming freely each year.
The simple truth about tulips, a truth about which almost every tulip grower in this area is in deep denial, is that under typical garden conditions tulips must be dug for the summer.
Raised beds provide one alternative to digging.
Once you realize that yes, you can grow tulips in this area and have them year after year, it's hard to resist the urge to collect them in all their wondrous variety. In a small garden such as this one, there is hardly room for one of each of everything available - and that's with close spacing. For years I tried growing them in the ground with labels buried with the clumps, but that system was not really satisfactory. For one thing, once the plants had died down, it was difficult to locate the clumps - and to be sure where one clump ended and the next began. At digging time there were always mix-ups - with the result that the stocks became mixed. And often bulbs were missed altogether.
Last year I tried planting bulbs in plastic berry baskets. I've been very pleased at what a difference this makes: now I can grow hundreds of varieties closely spaced without any serious concerns about mixing bulbs. The digging goes quickly, too.
In the image above you see the back edge of the raised north border where the main concentration of the "one-of-each" tulip collection is growing this year (the site rotates from year to year). There are over two hundred different cultivars planted here.
Friday, October 31, 2008
Clerodendron trichotomum
Wayne and I visited our friends Hilda and Charlie last week, and Hilda sent me home with a handful of seeds of Clerodendron trichotomum. This is one of those plants which is not as common in gardens as its several merits might suggest it would be. In our climate it's a low shrub. The white flowers are deliciously fragrant and are followed by bright blue fruits backed by the red calyx: as a result, it has a long season of interest. The foliage has the usual disagreeable scent of the family, but that scent is not noticeable until the foliage is rubbed or crushed.
Look carefully and you can make out a bit of the red of the now dried calyces and maybe even a bit of the now dark blue of the fruit.
Look carefully and you can make out a bit of the red of the now dried calyces and maybe even a bit of the now dark blue of the fruit.
Almond crown
Crocus kotschyanus with acuminate tepals
The crocus in the image above is Crocus kotschyanus, the crocus known to generations of gardeners as Crocus zonatus. I spotted this years ago in the lawn of a neighbor of a friend. I could see from a distance that it was Crocus kotschyanus, but I could also see that it was different from the usual forms I grow. When I got up close I noticed that the petals were pointed - acuminate in botanical terminology. This is not typical for this species, although it is for Crocus vallicola, a species in which the points are much drawn out. Crocus kotschyanus and Crocus vallicola share several characteristics, and their ranges overlap: is my plant from a hybrid population?
It was several years more before I was able to dig some corms for the garden, but it is now growing here well.
Sunday, October 26, 2008
Crocus oreocreticus
This crocus was received in the summer of 2005 but is blooming for the first time this year. The members of the saffron group of crocuses appeal to me greatly. Crocus oreocreticus has a fragrance which suggests the typical saffron crocus fragrance with a strong overlying note of hyacinth. This and another member of the saffron group, Crocus thomasii, are worth growing for their fragrance.
One of the reasons this plant took so long to bloom might be that it grows in a pot in the cold frame. I grow the plants in the frame in a very lean medium and do not water them much. As a result, many of them give little increase and simply maintain themselves from year to year. I’m still learning how to manage these plants: this year Crocus oreocreticus will probably be planted out into a bed in the open.
One of the reasons this plant took so long to bloom might be that it grows in a pot in the cold frame. I grow the plants in the frame in a very lean medium and do not water them much. As a result, many of them give little increase and simply maintain themselves from year to year. I’m still learning how to manage these plants: this year Crocus oreocreticus will probably be planted out into a bed in the open.
Thursday, October 23, 2008
Tricyrtis macrantha
The genus Tricyrtis provides a number of interesting late summer-, early fall-blooming herbaceous perennials with, as a rule, upward-facing, star-shaped spotted flowers. As with so many plants touted for shade tolerance, they actually do even better with plenty of sun. As a group they are called toad lilies. The one shown here, Tricyrtis macrantha, is so different from the others that you might not realize what it is the first time you see it. The flowers remind me of those of some fritillaries or of those of Kirengeshoma palmata. If you tilt them up a bit, you will be able to see the profuse red spots on the inside - again, much in the style of some fritillaries. Not only is it beautiful and unusual, it is also easily grown.
I had hoped that this would bloom with some of the autumnal gentians, but this year at least it finished before the gentians started.
Cuphea 'Fireworks'
I've purchased what appears to be this same plant under several names over the years; the name I'm using here is the name which came with the most recent acquisition. This plant is sometimes called bat flower because the two large petals suggest the ears of some bats. Cuphea belongs to the Lythraceae and is thus related to crepe myrtle and Lythrum. There is a local native species, too; it's not of much decorative value.
This year 'Fireworks' gave better results than any other sorts tried in the past. It grows in a tall, narrow terra cotta pot on the front steps; it gets plenty of sun there. It thrives in heat and humidity. It's particularly beautiful in the late afternoon sun - that's when these images were taken.
Cyclamen persicum
Hybridists have sent the wild Cyclamen persicum on a wild ride over the centuries. The wild plant, the largest of the wild cyclamens, has been bred to be even larger, and in the process the fragrance of the wild ancestor has been largely lost. The result is the so-called florist's cyclamen, a staple of the winter window-sill garden. These big plants are good for providing lots of color for months; but the typical American home is too warm for them, and thus that potential is rarely reached. And although the wild forms grow in areas which experience freezing weather, these big plants are not for the open garden in this area.
There are also dwarf forms of the florist's cyclamen, and these often have good fragrance. That same day I purchased the plant of azalea 'Autumn Belle' I spotted a tray of florist's cyclamens. I was initially drawn by the color, but as I got over the plants a very pleasant fragrance became apparent. I picked up a red-flowered plant, gave it a sniff, and quickly put it down - nothing nice there! A pink-flowered plant gave the same result. And then I tried a white-flowered plant: that's where the great fragrance was coming from. This one came home with me: that's it in the image above.
It's in the cold frame now: its chances are better there than inside the house. Will it survive the winter in the cold frame? We'll see. I hope it does because it's loaded with flower buds, enough for it to carry on for weeks and weeks it would seem. And there is a particular pleasure to be had in opening the cold frame and getting a rush of sweet fragrance.
Encore azalea 'Autumn Belle'
A trip to one of the local big box stores recently resulted in two impulse purchases which promise to make the next few weeks even more enjoyable. Here's the first of them, one of the new and much advertised Encore azaleas. These are azaleas bred to bloom off and on throughout the season. Their blooming schedule is probably like that of the old Hybrid Perpetual roses: a big splash in the spring, bloom off and on throughout the summer, then another splash in the autumn. Or is it? Time will tell.
These Encore azaleas are available in a narrow range of colors in the magenta-blue red range; there are also white-flowered sorts. Are any of them fragrant? Fragrance is not mentioned in the advertising.
The one I bought is 'Autumn Belle', a sort of warm salmon pink with red-pink spots. At the edges of the petals are white areas, which look as if they had been splashed and streaked on. The resulting pattern is striking and reminds me of the patterns caused by color breaking virus in some plants, and it also reminds me of the color patterns seen in some of the azaleas grown for winter bloom indoors as houseplants.
One use for this handsome plant immediately comes to mind: pair it with the autumn blooming camellias. Camellias and azaleas in the garden during October and November: that's going out in style!
These Encore azaleas are available in a narrow range of colors in the magenta-blue red range; there are also white-flowered sorts. Are any of them fragrant? Fragrance is not mentioned in the advertising.
The one I bought is 'Autumn Belle', a sort of warm salmon pink with red-pink spots. At the edges of the petals are white areas, which look as if they had been splashed and streaked on. The resulting pattern is striking and reminds me of the patterns caused by color breaking virus in some plants, and it also reminds me of the color patterns seen in some of the azaleas grown for winter bloom indoors as houseplants.
One use for this handsome plant immediately comes to mind: pair it with the autumn blooming camellias. Camellias and azaleas in the garden during October and November: that's going out in style!
Tuesday, September 23, 2008
Smilax laurifolia
Some of the plants I'm most proud of are apt to engender perplexity in some garden visitors. The several members of the genus Smilax which grow here are good examples. These are tough plants, not easily removed when they get in the way of horticultural or agricultural activity. Some are herbaceous, but most are thorny, more or less evergreen vining plants. Even in those forms in which the foliage does not survive the winter, the stems remain green and conspicuous.
Several of them form nearly impenetrable thickets, and several are prodigious vines. Another of these robustly vining sorts, Smilax smallii, was discussed in an earlier entry: http://mcwort.blogspot.com/2008/02/smilax-smallii.html
The subject of this entry is the biggest of the North American species, Smilax laurifolia. It goes right to the tops of trees and forms thick, trunk-like stems, bare of foliage sometimes for the first thirty or so feet. It's a stunning plant, nothing like anything else in our native flora. Surely there must be at least one Victorian writer who deemed it antediluvian. To me it looks like something from a tropical rain forest.
Back in the early '90s Wayne and I were birding in far southern eastern Virginia shortly after a big storm had gone through the area. That storm was my friend: I had been trying to collect seed of this species for years, but the seed was always forty feet up in the trees. That day I was in luck: we found a big tree which had come down in the storm, and the tree was wreathed in Smilax laurifolia. And the Smilax was full of ripe fruit.
All the Smilax I've grown from seed have been very slow, and this species is no exception. Years after the seed was sown all I had to show for my efforts were tiny plants to be measured in inches. But they got better yearly, and three years ago they finally began to put on size. Now they put on about four feet yearly. The largest is being trained into position with the idea of letting it cover part of the deck railing.
This largest plant provided a surprise this year: it bloomed for the first time. It has yet to experience a really biting winter here. But in nature it ranges at least as far north as coastal New Jersey, so I'm expecting to do well in the long run.
Iris foetidissima 'Citrina' in fruit
You wouldn't know it from the picture, but this is the form of Iris foetidissima with pale yellow flowers. The seed pods are beginning to open now, and for many gardeners the brightly colored seeds are the only reason to grow this plant. These remain interesting and colorful for months, well into the winter.
Bessera elegans
What a charmer this one is! And it's easily grown. Give it what in the old days we called "gladiolus culture" : i.e. plant the corms out in a sunny spot after the danger of severe freezes is over, and in the autumn dig the corms and after they are dry pop them into a zip-lock bag and store them inside for the winter. I started with three corms last year; they did not bloom or increase. But this year they are blooming. It's being treated as a pot plant for now: however you grow it, keep in mind that you will want to get close to it to examine it well. The foliage is nothing more than three or four rush-like leaves about eighteen inches long.
I think I first had this about forty years ago from Zephyr Gardens in San Antonio: back then, I thought of it as one of those many Mexican bulbs which at the time seemed so elusive. It's now grown as a field crop in Holland for both the cut-flower and bulb trades.
Puff pastry
Habenaria radiata
The winsome little bloom shown above is the Egret Flower, a tiny Japanese and Korean bog orchid named Habenaria radiata or Pecteilis radiata. It's very easily grown: the one shown grows in a pot of sandy peat kept moist in full sun. The plant grows from a corm about the size of a sweet pea seed. This plant is winter hardy here and can be grown in bog gardens, but it is so tiny that it is apt to be overwhelmed by neighboring plants.
Among gardeners it is widely known as Pecteilis radiata. This name Pecteilis was coined by one of the really colorful characters in the history of early nineteenth century taxomomy, Constantin Samuel Rafinesque-Schmaltz. He was born into an Italian family near Istanbul in 1783 and died an American citizen in 1840 in Philadelphia. He spent years in Kentucky. Rafinesque evidently didn't hesitate to name anything which came his way: those were the days when taxonomists shot from the hip, and Rafinesque shot plants, animals, whatever fell into his hands.
Achimenes 'Cattleya'
| Achimenes 'Cattleya' |
On first consideration I shouldn’t like achimenes: the ones I grow are not fragrant, they are not frost hardy, they duplicate colors and growth habits seen in garden impatiens and petunias, and they are slow to come into bloom. Yet there is something about these plants which is very appealing: is it their poise? They present themselves very pertly. Allowing for a couple of quirks, I find them easy to grow.
The one shown here is Achimenes 'Cattleya' (when this post was originally made, I called it Achimines mexicana).
Achimenes had their glory days in the mid to late nineteenth century: hybrids proliferated then, including several which are still grown today. Present-day enthusiasts live in the shadow of those days: although the color range is wider today, the number of cultivars available is much reduced.
The one shown here is Achimenes 'Cattleya' (when this post was originally made, I called it Achimines mexicana).
Achimenes had their glory days in the mid to late nineteenth century: hybrids proliferated then, including several which are still grown today. Present-day enthusiasts live in the shadow of those days: although the color range is wider today, the number of cultivars available is much reduced.
Saturday, September 13, 2008
More Moire (or is it moiré?)
Wayne wrote to me asking if the colors in the images of the hybrid Japanese morning glories were accurate. I assured him that they were, and then went on to describe the watered-silk pattern of merging and blending colors seen in some of these amazing blossoms. As I was talking, I was about to use the word moiré, but realized that I wasn’t sure how to pronounce it. This is the word which precisely describes the watered-silk pattern.
As it turns out, the word is pronounced as both a single syllable word and a two syllable word. Evidently there is no generally recognized difference in meaning, although according to the wikipedia entry on this word the single syllable form is prevalent among those discussing fabrics, and the two syllable form (at least two syllables as pronounced in English) is prevalent in other contexts (such as this one, where I’m discussing color pattern).
Although the word came into English from French, evidently it is not a French word but rather Arabic (and some say ultimately from the Latin marmoreus, marble-like). And just as interesting, the word mohair apparently shares the same origin.
Believe it or not, the two images shown above are of the same blossom. The upper one was taken early in the morning, the lower one late in the afternoon on a rainy day. Evidently the blue pigments are not as stable as the red ones. The image of the blossom in its purple/blue phase was taken in natural light, the red phase was photographed under incandescent light with the camera light meter adjusted for that.
When the first flowers from this lot of seed began to bloom, I wasn't sure I liked them. But they have grown on me, and I can see them becoming favorites.
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