Blackout viola
Viola cornuta 'Blackout'
USDA zones6 to 10
SunHandles full sun to partial sun
WaterHandles moderate to moist soil
Size6 to 9 inches tall6 to 12 inches wide
- Growth rate
- Moderate
- Habit
- Clumping
- Bloom season
- Spring, summer, autumn
- Bloom color
- Black
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, alkaline, neutral
Garden uses
Attracts
Notes
'Blackout' viola (Viola cornuta 'Blackout') is a perennial for borders, containers, cottage gardens, and ground cover. It is hardy to USDA zone 6, or down to -10°F (-23°C). This plant likes full or part sun and average to moist, sandy, loamy, or clay soil. The fragrant black flowers open in spring, summer, and autumn, and bees and butterflies visit them. It sits low on the menu for deer and rabbits. The evergreen clumps stay 6 to 9 inches tall.
Pairs well with Foam flower, David garden phlox, and Casa Blanca lily.