Planting Guide: Early Blue Violet (Viola adunca)
Tip: Plant a generous patch in open, sunny ground — butterflies like the threatened Oregon silverspot need violets in density to find and use them.
Choosing a Site
Light: Full sun to part shade.
Soil: Average to humus-rich, well-drained; tolerates lean prairie soils.
Space: 8–12 in apart; plant in drifts for butterfly value.
Planting Steps
Plant in fall or spring; set crowns at soil level.
Water in and mulch lightly; in meadow plantings, keep competing grasses in check.
Watering & Care
Establishment: Keep moist the first season.
After establishment: Moderate water; tolerates drying once settled.
Maintenance: Poor competitor — keep aggressive grasses and thatch away.
Propagation: Self-seeds; divide in spring.
Protection
Deer: Generally left alone.
Wildlife: Sole larval host of the threatened Oregon silverspot butterfly; host for other fritillaries; nectar for the Mardon skipper.
Companions: Redwood Sorrel, native bunchgrasses, meadow wildflowers.
Harvest Basics
Use: Pick blue flowers and young leaves in moderation.
Note: Leave plenty for the butterflies; never eat the roots.