KEY
- Award of Garden Merit (RHS Award) indicating a plant that is rated excellent for garden use, of good constitution, and not requiring specialist conditions to grow well.
- ***
- Fully hardy
- **
- Hardy to -5°C
- *
- Unlikely to withstand a frost
- T
- Tender
- #
- New addition to this year's catalogue.
View Plant
Agastache
Black Adder
90cm. Fragrant dark leaves, with dark buds opening to deep violet-blue flowers. Very attractive to bees and butterflies. Well-drained soil in sun. May be hardy in milder areas.
**(*)
