Snowdrop
Family:Amaryllidaceae (Amaryllis
family)
Genus: Galanthus
Species: nivalis
Even before the Chinese witch hazel (Hamamelis
mollis) is brave enough to send its blossoms out to face
January’s wintery blasts, it’s likely that snowdrops will
appear in your garden—if you planted them this last
fall (or any fall before). That’s always the challenge of
writing about bulbs or, in the case of Galanthus nivalis,
corms. There’s a significant delay between the time that
you bury those dry-looking lumps in your well-prepared beds,
and the day that the glorious little flowers appear to remind
us that the garden is waking up to a new season.
The part of Galanthus nivalis that
is planted is in fact a corm. In common use, most thickened
underground
stems are called “bulbs,” but there is a real difference. True
bulbs—lilies, daffodils, and onions, for example—are rounded,
with fleshy internal layers—called scales—that store food and
protect the developing plant inside. Think of what an onion
looks like when you slice it crosswise. Corms are underground
stems with no scales; the food is stored in the solid tissue
in the middle. New corms replace the old ones each year. Gladiolus,
freesia, crocus, and yes, snowdrops, all grow from corms. Rhizomes—iris
and calla are examples—are swollen underground stems that are
often horizontal and spread by creeping. They can be long and
narrow (some grasses) or shorter and fat (iris). And a tuber
is a fat underground stem—think potato and tuberous begonia—similar
to a rhizome, but usually more rounded. All of these are forms
of underground stems, from which both roots and shoots
emerge, as opposed to tuberous roots, which are underground
food storage systems that are not stems. Growth buds emerge
from the old stems at the base of the plant, not from the tuberous
roots.
Snowdrop
corms should be planted 3 inches deep in a well-prepared
bed where they can settle in for a long
time. They are happy in the open or under deciduous trees,
receiving full sun while they are blooming but spending the
summer in shade. They will naturalize, but slowly, both by
corm and by seed. To divide them, lift the corms right after
the plants flower, while the leaves are still green, and replant
them quickly. They don’t take well to having their corms dried
out.
Do
plant your snowdrops where they can be seen close-up. Their
small and intricate white flowers bear close
examination and are less effective when massed at a distance.
Leave that effect to daffodils and some of the more dramatic
tulips. Snowdrops are tough, belying their delicate appearance;
they’ll bounce right back after even a heavy snowfall. They’re
native to the alpine regions of Europe and Asia, and even the
name of our featured species—nivalis—is derived from
the Greek term for “near the snow line.” There are other species—12
at last count—that vary in bloom time, vigor, and color details.
There is even an autumn-blooming Galanthus—G. reginae-olgae—so
if you’re doing your gardening planning now, you may want to
give that a try. But since snowdrop is the English garden emblem
for January, and because it is a reminder that the plants in
the garden so often symbolize renewal, I prefer to look at
the snowdrop as a sign of the beginning of the season, rather
than the end. It won’t be long before the cultivating starts
in again. And aren’t we glad that’s how it works. There are
only so many days we can spend looking at catalogs before the
urge to be out scrabbling in the dirt becomes irresistible! |