species
Colchicum autumnale
Autumn crocus
Scale drawing from this record, beside a 1.7 m figure.
Colchicum autumnale belongs to the family Colchicaceae, also known as Autumn crocus, native to the UK. It reaches 15 cm tall and 10 cm across in about 10 years. It grows in full sun or part shade, on loam or chalk soil, where the ground is neutral or alkaline and in well drained or moist conditions, and suits average positions. It flowers from September to October. Its RHS hardiness rating is H7 (very hardy): Below −20°C.
Assembled from the attributes recorded below.
What this plant needs
- Size at maturity
- 15 cm tall × 10 cm across, after about 10 years
- Hardiness
- H7 (RHS)
- Aspect
- Full sun, Part shade
- Soil
- Loam, Chalk
- Acidity
- Neutral, Alkaline
- Moisture
- Well drained, Moist
- Exposure
- Average
- In the UK
- Native
When it flowers
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
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