Symphyotrichum subspicatum
Douglas Aster
Plant Family:
Asteraceae
Herbaceous Plant, Perennial
Flower:
Purple
Blooms :
Jul
to:
Sep
Flower cup (involucre) of overlapping bracts, the outer bracts with paper-like margins and light yellow to reddish brown base; ray flowers purple or blue, about 1/2?1 in. long. Disc florets yellow tubular. Heads in raceme or cyme arrangements.
Botanical Description
Fragrant?
No
Foliage:
Green
Deciduous
Pat Kolling
Stems with many hairy leaves. Leaves toothed; lower leaves lance-shaped, with short petiole; midstem leaves usually without petiole but do not clasp stem.
Oregon Native?
Yes
West State Native?
Yes
Western U.S. and Canada
Site Selection
Minimum USDA Hardiness Zone:
Water Needs:
M
Sun Needs:
Partial Sun
Deer Resistant?
No
Firewise?
No
Height:
1-4'
Spread:
Growth Rate:
Fast
Native Habitat:
Ecosystem known as the ?coast forest? which
ranges from the ocean coast to the subalpine
areas of the mountains. Most common aster in northern British Columbia
and Alasa. Roadsides, salt water, streams, open fir forests,
fores edges.
Soil:
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Mulch:
Long Term:
Watch for spread
Winter:
Spring:
Summer:
Fall:
Common Problems
Easily naturalizes via rhizomes. Watch for spread
Diseases:
Prone to a variety of diseases. In particular, monitor for aster yellows and powdery mildew
Insects:
Also called: