species
Geranium macrorrhizum
Rock cranesbill
Scale drawing from this record, beside a 1.7 m figure.
Geranium macrorrhizum belongs to the family Geraniaceae, also known as Rock cranesbill, introduced to the UK. It reaches 40 cm tall and 60 cm across in about 10 years. It grows in part shade, full sun or shade, on loam, clay or chalk soil, where the ground is acid, neutral or alkaline and in well drained or moist conditions, and suits average positions. It flowers from May to June and is evergreen. Its RHS hardiness rating is H7 (very hardy): Below −20°C.
Assembled from the attributes recorded below.
What this plant needs
- Size at maturity
- 40 cm tall × 60 cm across, after about 10 years
- Hardiness
- H7 (RHS)
- Aspect
- Part shade, Full sun, Shade
- Soil
- Loam, Clay, Chalk
- Acidity
- Acid, Neutral, Alkaline
- Moisture
- Well drained, Moist
- Exposure
- Average
- In the UK
- Introduced
When it flowers
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Evergreen — it holds its leaves through the winter.
Plan a bed with Geranium macrorrhizum
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