With this post we’ll conclude our look at the native plants
offered by the Cascadia Conservation District. If you’d like to see the full
plant list, make an order or get more information please visit our website.
These final two plants are symbols of our region. The grand
ponderosa pine (Pinus ponderosa) and the vine maple often come to mind when
thinking of healthy ecosystems in our area.
My favorite tree of all time, icon of the west and reigning
top seller in our plant sale is the ponderosa pine tree. Ponderosa pine,
colloquially ‘pondo’, is characterized by its orange, scaly, plate-like bark
and long green needles which are typically borne in bundles of three. Growing
to around 100 feet in mostly open stands, ponderosas often have the appearance
of dominating their surroundings. They are also known for smelling like
vanilla.
Very well adapted for our climate east of the Cascades,
ponderosa pine isn’t just fire tolerant, it depends on fire. With its thick
bark a large ponderosa can handle the low intensity fires that were ubiquitous
to this area prior to modern forest management. These fires eliminated the
pondo’s resource competitors, allowing it proper exposure and sufficient resources.
Since management plans have included enthusiastic fire suppression, shade
tolerant trees and shrubs have moved into ponderosa stands throughout the west,
lending such stands the characteristics necessary for the increasingly large
scale fires we’ve been seeing as of late.
As for conservation uses, ponderosa is commonly used in
shelterbelts, living snow fences and in riparian restoration. Ponderosa stands
make great habitat for squirrels, birds and bats and provide shelter for big
game. Because ponderosa needs exposure, it is a seral species which, when
mature, can provide the necessary shade for shade tolerant species to return
after a significant disturbance. This makes it an excellent native plant choice
for post fire restoration.
Vine maple (Acer circinatum) is another iconic native plant in our region. It
is a deciduous tree with red and white flowers in the spring, and brilliant red
to subdued yellow broadleaves in the fall. Typically vine maple will grow
between 10 and 30 feet tall, with shaded specimens reaching the upper end of
that range readily and exposed specimens on the shorter side.
Vine maple grows best along streams and moist sites. It
prefers shady sites, but can tolerate some exposure. In more exposed sites it often takes a
single-stemmed tree form, while in shade it usually grows as a shrub in clumps
and thickets.
With its white and red flowers in the spring and showy
colors in the fall, vine maple is a common choice for those looking to use
native species to beautify their landscaping. It is also used as a streamside
stabilizer, as a pioneering species at disturbed sites and is an important food
source for birds and large and small mammals alike.
Again, if you’re interested in ordering any of our plants,
need more information or would like to sign up for our native planting
workshop, please see our website.
Today’s Central Columbia River area snowpack is currently at
63%
of its 29 year average (USDA/NRCS National Water and
Climate Center, http://www.wcc.nrcs.usda.gov).