WSU Clark County Extension
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Stream Violets

Scientific name: Viola glabella
Taxonomy
Family:Violaceae
Type:Groundcovers Herbaceus
Native:YES
Plant Requirements
Zone:5 to 8
Sun:Partial shade
Moisture:Wet
Plant Characteristics
Height:1 ft
Width:2 ft
Bloom:Showy flowers
Bloom Time:May to June
Additional Characteristics
Trees


Fruit

Leaves


Bark
Wildlife value

Poisonous
Description One of the most easily recognized native groundcovers in the Pacific Northwest, Stream Violets herald the end of spring with their yellow flowers. They are also known as Pioneer Violets in the native plant world.

  Morphology:
This native Northwest herbaceous groundcover spreads by scaly, fleshy rhizomes. The new foliage emerges each year very early (late March to early April) in the Pacific Northwest. Leaves are bright green, round or ovate and slightly toothed.

During the spring tiny (1/2” wide) bright yellow flowers emerge, which are held on short spurs above the foliage. Flowers feature form with distinctive black/purple whiskers on the lower petals. The lower petal forms a landing platform for insects seeking nectar within the spur.

The seeds of this plant are very fecund and one can end up with many plants in a short time

  Adaptation:
Stream Violets require consistently moist soil; do not let dry out. Stream Violets need partly shady sites in order to spread.

  Pests:
None reported.
For assistance, contact Dr. Charles Brun (brunc@wsu.edu), (360) 397-6060 5701
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