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
Eryngium is a large genus, with about 200 species.
Very good bee and butterfly plants that need to be in a sunny spot, well-drained and rather dry.
Remains small, just 30 cm tall.