This is a most valuable genus, providing colour over a long period from early summer. Many varieties are suitable for the herbaceous border, but there are also many that are of a size appropriate for rock garden use.
Geranium 'Sirak' has large, rosy-lilac flowers. It makes spreading semi-evergreen mats, so is good for ground cover, particularly in natural planting schemes.
2 litre pot|
||Early summer to mid autumn|
||sun or partial shade|
||fertile, well drained soil|