| Helleborus
x hybridus |
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Shade tolerant and long lived, hellebores
make welcome additions to the woodland border.
As a harbinger of spring they are worth a
spot in any garden, blooming well before most
other perennials have even stirred,
and the blooming scapes are already starting
to appear here in western Oregon. If
typical, these will huddle close to the ground
until about March, when they will rise and
unfold in hues ranging from white, through
dusky pink, mauve, darker purple and almost
balck. Modern hybridising efforts have
increased the color range as well as offering
spotting, picotees and even double blossoms,
so the choices are certainly not limited to
the more pinkish type shown in the photo.
It's true that these fellows can be a bit
pricey for a perennial, but if
you have ever grown them from seed, you would
understand why, as they can take several years
to bloom. Once established, however, they
make a permanent addition to the garden, and
they will usually self seed near the parent
plant, so can be increased over time.
Their foliage remains attractive most of the
year, so even out of flower, they make an
effective component of a mixed planting, effective
in combination with hosta or other bold textured
plants. Deer usually avoid them, too,
so they are invaluable in areas plagued by
herds of these voracious pests.
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| Heuchera
"Plum Pudding" |
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Few
plants have made as much of an impact on gardening
in recent years as these new varieties of
hybrid heuchera. By now, the seed grown "Palace
Purple" is a familiar sight with its
beet purple foliage, but there has been an
explosion of vegetatively produced cultivars
in recent years with a dazzling array of foliage
patterns. "Plum Pudding" is one
of the best. It forms a neat mound to a foot
high with bold, scalloped leaves of burgundy
with a subtle pewter netting between the darker
veins. Like many other of these newer Heucheras,
the patterns shift subtly by season, becoming
more pronounced with the onset of cooler weather.
I've grown these in anything from full sun
to a fair amount of shade with
equal success. In hotter climates they favor
a little more shade, while in
areas with cooler summers more sun is advisable.
They have many uses in the garden, and are
ideal as accent plants in a lightly shaded
area, combining well with ferny foliage. A
combination of these guys with Japanese painted
fern is tough to beat. Also, they are tidy
enough to be used in mixed containers and
show off especially well with grassy foliage.
These are hardy plants, withstanding temperatures
of -20 and below, and are evergreen or nearly
so in milder areas. Even where evergreen,
though, I like to cut off most of the tatty
foliage in early spring to make way for the
new rush of growth.
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| Veronica
peduncularis "Georgia Blue" |
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Early spring can be prove challenging in the
perennial border, since few
perennials are even stirring in most areas come
March, so what a joy to find those few that
are at their peak early on. Veronica "Georgia
Blue" is one of those, and that brilliant
blue is hard to resist. It is an evergreen to
mostly evergreen perennial growing just a few
inches high, but spreading to 2 feet or more,
with glossy foliage that turns a ruddy purplish
hue in cold weather. It blooms for several weeks
from early spring onwards, sporadically thereafter,
and the foliage will be nearly covered with
blossom at the height of bloom. Found in the
former Soviet republic of Georgia rather than
our own state, this one is quite hardy, surviving
temperatures of -20f or below, and is tough
and adaptable throughout a wide climate range.
Useful
in the foreground of the perennial border, in
a larger rockery or as a small scale ground
cover, Georgia Blue is also tops for planting
with spring bulbs, as the mats of foliage stay
low, and that blue color is the perfect compliment
to the yellows, pinks and reds of your daffodils
or tulips.
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| These
are several named forms of viola cornuta sold
in the States as "English Violas", distinguished
from the more common bedding varieties by the
fact that they act as a true perennial in most
climes and are only propagated by cuttings instead
of seed. Of these, "Etain" is perhaps
the most popular, and no wonder with the striking
combination of soft yellow and violet -- that
photo doesn't appear doctored in any way. They
bloom over a fairly long period through spring
and early summer as long as the weather is not
too hot, and if sheared back will often rebloom
in the fall. I have stock plants going into their
fourth year showing no signs of decline despite
all the cuttings I've taken. Mine are in full
sun, but folks in hotter areas might try a bit
of light shade to prolong bloom. Best in a good,
rich soil that doesn't dry out too much, and they
really respond to regular feeding. For sure flower
power, well-grown specimens are hard to beat. |
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With the all too familiar primula polyanthus such
a common sight at every nursery, home improvement
center and even grocery store, it might be easy
to assume that there is but one primrose, but
the genus is a huge one and contains many fine
garden plants. Of all the primulas, I find P sieboldii
the prettiest, and even though it is also one
of the easiest to grow as well as propagate, it
remains relatively unknown in American gardens.
Whole societies are devoted to this plant in its
Native Japan, with myriad named forms available
in all shades of pink, rose, lilac, white and
lavender, with many exhibiting intricately laced
petals appearing like snowflakes, yet for some
reason it is a rare sight in nurseries here in
the States.
Like most primulas, P sieboldii prefers a bit
of shade, though will accept more sun as long
as the soil is moist, and it is very hardy --
withstanding temperatures to - 30f, and reportedly
even lower. It is also one of the most heat
tolerant of the clan, and can be grown in many
areas where other primulas languish. Each spring
it sends up its lush mass of foliage soon topped
by the 8-12 inch whorls of blossoms, which can
be cut and brought inside if desired. After
its April or May blossoming, it then gradually
goes dormant again much like many other ephemerals
like common bleeding heart, and then rests until
the following spring. A fleeting thing, to be
sure, but a real garden treasure.
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I
can't imagine letting too much of the year go
by without including the perennial plant association
plant of the year, could I? Not with that name,
anyway.....
The tall border phlox can be such an impressive
sight when well grown with those large panicles
of blossoms appearing atop the three or four
foot stems, but many suffer from mildew to some
degree, which disfigures their foliage and mars
their impact in the garden. Growing them is
often a case of either spraying, or putting
up with the effects of the disease. "David"
is one cultivar that while not completely immune
to mildew, is resistant enough to be able to
grow happily in most gardens without spraying,
and is well deserving of the p.p.a. accolades.
If you can grow good roses, you should be able
to grow this phlox. Just give it a sunny position
in good, rich soil, and water regularly. Like
your roses, border phlox don't like to dry out,
but it is best to restrict your watering to
the morning hours or else water from below in
order that the foliage stays dry going into
evening. The payoff is certainly worth whatever
effort you put in to growing these guys, as
those fragrant, pure white blossoms make terrific
cut flowers, and will continue to bloom for
several weeks from mid summer onwards. If you
have ever considered planting a moon garden,
don't let this one pass you by.
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This
one is more likely to show up in American nurseries
as "Ruby Star" instead of its original
German name, but no matter what you call it,
it's a keeper. Coneflowers are well known to
most gardeners, but the regular species can
display rather muddy colors, and the drooping
rays of petals lessens some of the impact in
the garden. You might think of "Rubenstern"
as a gussied up version of this old familiar,
as not only is the color much more vibrant,
but the rays are held out more horizontally,
so the overall display is much greater. Like
all coneflowers, it makes an excellent cutflower
and is tops for attracting butterflies to the
garden. This one can be grown successfully just
about everywhere, and all it requires is a good
bit of sun with a soil that doesn't stay too
waterlogged, and will typically bloom for several
weeks starting right about the time in mid to
late summer when so many other perennials are
petering out. It's sure always nice having some
plants looking fresh when most others are flagging,
so if your garden is starting to look tired
by late summer you might like this one.
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| Hemerocallis
"Awesome Blossom" |
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If
you think of dayliles in terms of the wild ditch
lilies, or the ubiquitous "Stella D' Oro",
you might think again. Modern hybridizers have
literally transformed this genus over the years,
and in the last fifteen or twenty, especially,
have made great strides improving the form as
well as introducing ruffling, pronounced eyes
and edges, and broadening the color range. The
daylilies of today are nothing like those of
years past.
There
are many awesome blossoms available today, but
this one is one of my favorites and so aptly
named. Photos of dayliles often appear doctored
in some way, but this one of "Awesome Blossom"
looks right on the money to me (and thanks to
Bill Jarvis for use of his photo) . Not only
does it have a very dramatic eye and picotee
that appear almost black, but the very edges
of the petals show a burnishing of gold. You
should see it in person!
I
must admit, this one is still a bit pricy for
most people's budget, but the expensive daylily
of today becomes much more affordable as the
years go by. Typically, a new introduction by
the top hybridizers might cost anywhere from
50-250 dollars, but within 10 years, most have
settled in price to the 5-20 dollar range. I'm
sure this, and many other terrific modern dayliles
will follow suit.
If
you are new to dayliles, or just want to reintroduce
yourself, I suggest visiting Bill Jarvis' fine
site at http://www.ofts.com/bill
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Aster
novi-belgii
Professor Anton Kippenberg |
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Miss
Jekyll described her aster garden in Wood
and Garden:
"They
have, as they well deserve to have, a garden
to themselves. Passing along the wide path in
front of the big flower border, and through
the pergola that forms its continuation, with
eye and brain full of rich, warm colouring of
flower and leaf, it is a delightful surprise
to pass through the pergola's last right-hand
opening, and to come suddenly upon the Michaelmas
Daisy garden in full beauty. Its clean, fresh,
pure colouring, of pale and dark lilac, strong
purple, and pure white, among masses of
pale-green foliage, forms a contrast almost
startling after the warm colouring of nearly
everything else; and the sight of a region where
the flowers are fresh and newly opened, and
in glad spring-like profusion, when all else
is on the verge of death and decay, gives an
impression of satisfying refreshment that is
hardly to equalled throughout the year."
New
York asters, the Michaelmas daisies of English
fiction, come in a variety of colors and styles.
Heights range from as short as eight inches
to eight feet. Massed plantings of asters provide
color echoes of late blooming Buddleias and
Hydrangeas.
A.
novi-belgii Professor Anton Kippenberg
is one of the smaller, lavender-blue cultivars
(estimates range from 1 - 3 feet.) As with phlox,
asters are susceptible to mildew; good culture
which keeps foliage dry and soil moist should
minimize it. Rated as cold hardy in USDA z.
4/9, A. n-b. Professor Anton Kippenberg
should survive in most of our gardens. Naturally,
the good Professor wants a sunny,
moist spot in rich loam. Ahh, dont we
all?
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| Fothergilla
gardenii "Mt Airy" |
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As autumn approaches, our gardening thoughts
often turn to fall color and our gazes turn
skyward as we enjoy the reds, yellows and oranges
provided by so many of our trees. At ground
level, though, our gardens all too often lack
punch, as blossoms dwindle and our roses, annuals
and perennials become ratty. If you are looking
for one last hurrah in your borders before winter,
few plants can rival fothergillas, and "Mt
Airy" is one of the best.
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Fothergilla
gardenii "Mt Airy" in Spring |
Mt.
Airy is all season performer, and small enough
to be used in mixed borders, as it seldom grows
more than head high and can be kept lower very
easily. It gives a nice display of whitish,
bottle-brush blossoms in spring before giving
way to the soft, blue green summer foliage.
The real performance arrives in fall, though,
when the plant erupts into various shades of
red and orange which can last for several weeks
-- quite striking even here in western Oregon,
where our autumns are often wet and mild, and
even better in cooler climes. I find them best
in a spot receiving some protection from hottest
sun, but they will thrive anywhere between full
sun and fairly dense shade in a good soil that
doesn't dry out too much.
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Calluna
"Wickwar Flame" |
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Evergreens play an increasing role in the garden
during the winter months, but many still long
for some color in the landscape. One way to
have your cake and eat it too is through many
of the versatile heathers, which offer foliage
as well as floral interest. One of the best
of these is "Wickwar Flame".
Heathers are evergreen shrubs, typically spreading
wider than high, and can be used as ground covers,
in rockeries or in the mixed border. "Wickwar
Flame" grows to 1 1/2 feet or so, with
summer foliage a soft gold in color. It produces
its mauve colored blossoms at a most welcome
time in late summer through fall, and right
about the time the bloom gives way, the foliage
gradually changes color through shades of russet
through red. This is a real all-season performer.
I especially like them situated close to brick
walls and walkways, which shows off their foliage
to great advantage.
Like their close relative the heath (erica)
, these plants will thrive in soils decidedly
more acid than most plants tolerate. Give them
a spot in full sun to light shade in a sandy,
well drained soil, and shear them annually for
best performance. They can rot in a wet, heavy
soil, but are pest free other than that and
are very useful in deer country.
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| Rose
"Sally Holmes" |
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What better way to spend a dreary winter day
than curled up with a few gardening catalogues,
dreaming of the coming season and planning new
additions? Each season's rose catalogues are
no exception, so if you find yourself with a
little time and inclination, you might seek
out Sally here.
Sally Holmes is considered alternately a hybrid
Musk or simply a shrub rose. Some mention her
as a climber. However you consider this rose,
she is a beauty, producing her simple and elegant
blossoms in enormous clusters over a long season.
Apricot colored buds give way to ivory colored
blossoms when open -- the apricot lingering
longer in cooler weather -- and the clusters
can approach a foot or more in size.
This is a vigorous and nearly disease free rose,
growing to as much as 10 feet with support in
favorable climates. For most folks, though,
5-6 feet is more typical. One of Sally's attributes
is her versatility, as she can be grown as a
free standing shrub or as a small climber, and
her disease resistance comes in usefull when
planted in a mixed border. Few catalogues mention
cutflower use, but I've cut large single sprays
of blossoms, and had them last reasonably well,
not to mention the fact that one cluster is
a bouquet in and of itself.
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