Description
| Category: | perennials, shade plants |
| Flower color: | blue, silver |
| Flowering time: | V, VI |
| Growing conditions: | penumbra, shady, moderately humid, humid, fertile, with good drainage |
| European climate zone: | Z4= -29 ...-35, Z5= -23 ...-29 |
| Height: | 25-50cm |
