
Photo: Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 · Wikimedia Commons
Bloom colours
violet, cobalt
What actually matters with this one
Cut the spent spikes right down to the basal leaves and it reflowers within three weeks, twice a season.
How to grow it
- Light
- full sun
- Water
- Keep it dry
- Hardiness
- Zones 4-8
- Height
- 60 cm
- Flowers
- June to September
- Difficulty
- easy
Plant it alongside
Relatives and plants that want the same conditions.



