Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Violaceae

Genus:

Viola

Species:

Viola japonica

USDA Symbol:

VIJA

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

15 cm

Light Requirements:

Part Shade

Drought Tolerance:

Low

Bloom Months:

mar,apr,may

Bloom Colors:

purple, violet

Ground Cover:

Yes

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:

★★★☆☆ Butterfly & moth species supported by this genus (NWF)

Pollen Specialist Bee Keystone:

★★★★★ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

5.5 - 6.5 (slightly acidic to neutral)

Drainage:

good drainage required

Moisture:

consistently moist

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–42 days

Notes:

Seeds require light for germination. Fresh seed germinates more readily than stored seed.

The above propagation data sourced from Claude AI