Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Violaceae

Genus:

Viola

Species:

Viola douglasii

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

6 in - 1 ft

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

mar, apr, may

Bloom Colors:

Yellow

Ground Cover:

Yes

Native Range

United States: California, Oregon

Keystone Species Ranking

Caterpillar Keystone:

★★★☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Bee Keystone:

★☆☆☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Host Plant for Caterpillars

Soil Requirements

Soil Type:

well-drained, rocky or sandy soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

prefers open, sunny habitats in native range

Germination Information