by Meg McConahey
It seemed like a good
idea at the time.
But the berry Luther Burbank imported from India and
selected for its vigor, size and good tasting fruit back in
the 1890s, proved so vigorous it is now on "the most wanted"
list.
Yes, it was Sonoma County's favorite son who is responsible
for introducing the Himalayan blackberry (Rubus discolor),
now regarded as one of the West Coast's most notoriously
invasive plants.
It was a worthy pursuit for horticulturists in Burbank's
time. In the early 1900s Sonoma County was a big
producer of caneberries and the Himalayan, as Burbank named
it, showed a lot of promise.
"It had all the characteristics Burbank was going for," said
Bob Hornback, a horticultural historian and expert on
Burbank's work. "He thought it was pretty hot stuff.
Of course, he had no idea it would take off."
The Himalayan blackberry not only took off, it ran amok,
spreading far and wide through bird droppings. Really
a shrubby weed that is a member of the rose family, the
Himalayan blackberry can alter ecosystems by thwarting
native berry species. It creates such tall, thorny,
impenetrable thickets that it can kill smaller native
species.
So ubiquitous is this brambling berry, however, that many
people mistake it for a wild native. "There are several
different variants of it," said Hornback. "Some are
thornier than others and some have less fruit and some have
more fruit. Nobody is currently growing it
commercially. But you don't have to because it's in
everyone's garden anyway.
"It's a little bit tender to cold, so you won't find it
growing back East. It wouldn't survive the winter," he
added. "But in Middle Eastern climates or near the
coast or near a creek, it just goes wild. They just
take care of themselves."
If you're looking for a true native berry adapted to this
climate, the native California huckleberry, (Vaccinium
ovatum Pursh), a relative of the blueberry, is a better one
to invite into your yard.
They're small, but the flavor is more intense, and once
they're established, they don't need summer watering like
other berries, said Margaret Graham, co-owner of Mostly
Natives Nursery in Tomales.
For something more ornamental, consider the native Rubus
parvifloras or thimbleberry. They're not particularly
tasty, Graham said, but they are beneficial to birds and are
attractive with their large, maple-shaped leaves and white
blossoms that become berries in late June and July. Growing
up to 8 feet tall and just as wide, they are good in
woodland settings, Graham said.
The salmonberry or Rubus spectabilus, another native, is
also a showy landscape plant that produces an intense pink
flower and ripe berries that, while not as tasty as
huckleberries, are better than thimbleberries. Or one
could choose the Rubus leucodermis, a type of native
raspberry. It also is not as good as those bred for
the trade but, unlike commercial varieties, they need very
little water and they are good for wildlife, Graham said.
Despite the Himalayan debacle, Burbank developed 10
varieties of fine berries. One that is downright
intriguing is "Snowbank," a white fruited blackberry that is
a true albino, without pigment. You can stuff your
mouth with blackberries and say, Look, ma - no stains!
"It has all the flavor of a blackberry but it's milky
white," said Hornback, who found one in a mail order catalog
30 years ago and planted it at Burbank's Gold Ridge Farm in
Sebastopol. Now it is one of the most popular items
for sale at both Gold Ridge and the Burbank Home and Gardens
in Santa Rosa.
Burbank developed it as a joke, or as sort of a dare, said
Hornback. A friend once bet Burbank he couldn't
produce a white blackberry. But the plant wizard took
it on as a challenge, working five years to come up with "Snowbank"
in the 1890s.
It's very upright and rapid growing, getting up to 8 feet
tall. "The foliage is very narrow and truthfully, it
looks a lot like marijuana," said Hornback. "It's
thorny as heck. It's not something to tangle with.
But, oh my - it's such a trip to look up and see those white
berries on this blackberry plant."
*The Press Democrat, Santa Rosa,
California, Saturday,
July 1, 2006.
You can reach Staff Writer
Meg McConahey at 521.5204 or
mmcconahey@pressdemocrat.com.