number : 6 tot 9 per m2
- little groups of 3 to 10 plants (B) - groups of 10 to 20 plants, even more (C)
Plant description
This is the most hardy species Ceratostigma. The beautiful slender stems (often with a woody base) bear the light green leaves and blue flowers. This species is ideal for drier surfaces and likes a sunny spot with light shade in the afternoon.