Veronicastrum virginicum var. sibericum
Siberian Culver's Root, Black Root, Bowman's Root
Family: Scrophulariaceae Figwort
| Type | Perennial |
| USDA Hardiness range | 4A - 9B |
| Exposure | Full sun |
| Bloom color | Blue, lavender |
| Bloom time | Early Summer to Early Fall |
| Water needs | Moist |
| Landscape uses | Massing, seashore |
| Height | 4' to 7' / 1.20m to 2.20m |
| Spread | 36" to 4' / 90cm to 1.20m |
| Growth rate | Fast |
| Bloom attributes | Suitable for cut flowers |
| Leaf color | Green |
| Fruit color | n/a |
| Soil pH requirements | Acidic, neutral |
| Soil type | Loamy |
| Form | Upright or erect |
| Attributes and features | Native to North America |