Creates a good vertical effect from July to September. Clumps of tight stems with green aromatic foliage carry spikes of dark violet-blue blue bottle brush flowers during the summer.
Agastache 'Blackadder'
Giant hyssop
Details
| Aspect | Full sun |
| Flower Colour | Pink | Purple |
| Flowering Period | Jul | Aug | Sep |
| Foliage | Not evergreen |
| Goes Well With | Achillea, Echinacea, Geranium |
| Growth Habit | Clump-forming |
| Hardiness | Fully hardy |
| Height | 90cm |
| Soil | Rich and fertile |
| Spread | 30cm |
Ask Us a Question
WAYS TO PAY
