| | | Family | Violaceae | | Plant Type | herbaceous perennial | | Zone | USDA: 3a - 7b RHS: H EGF: H1 - H3 Australia: 1 | | Care Level | medium | | Height | 15 - 20 cm (6 - 8 in) | | Spread | 15 - 20 cm (6 - 8 in) | | Light | full sun to partial shade | | Soil Moisture | average, well-drained | | Soil Type | | | Soil pH | | | | Description | The herbaceous perennial Viola sororia (wooly blue violet) bears showy blossoms during mid spring to late summer. | | Typical Uses | Ground cover. | | Special Characteristics | Butterflies are attracted to Viola sororia . | | Cautions | Where conditions are favourable, Viola sororia (wooly blue violet) can be invasive and may require maintenance to keep it under control. | | |