Pimpinella saxifraga, known as burnet-saxifrage, solidstem burnet saxifrage, lesser burnet is a plant species in the family Apiaceae, a native of the British Isles and temperate Europe and Western Asia. Wikipedia
Pimpinella major 'Rosea' is a pink-flowering variety. For best results grow it in full sun to partial shade.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils.