Season: Perennial <br> USDA Zones: 3 - 9<br> Height: 24 - 30 inches<br> Bloom Season: Spring and early summer<br> Bloom Color: Purple<br> Environment: Full sun to partial shade<br> Soil Type: Rich, well-drained, pH 5.8 - 7.2<br> Temperature: 65 - 70F<br> Average Germ Time: 14 - 21 days<br> Light Required: Yes<br> Depth: Do not cover the seed but press into the soil<br> Moisture: Keep seeds moist until germination<br> Plant Spacing: 16 inches