Photo: Si Griffiths · CC BY-SA 3.0 · Wikimedia Commons
Bloom colours
sky blue
What actually matters with this one
It needs cool damp summers and acid leafy soil. In a warm dry garden it flowers once and then dies.
How to grow it
- Light
- part shade
- Water
- Never let it dry out
- Hardiness
- Zones 3-8
- Height
- 1.2 m
- Flowers
- June
- Difficulty
- expert
Plant it alongside
Relatives and plants that want the same conditions.
