What Soil Is Best for alum root 'Cassis'?
- Soil type
- Chalk · Clay · Loam · Sand
- Soil pH
- Neutral

alum root 'Cassis' · Heuchera 'Cassis'
Grow in a fertile, neutral soil in sun or light shade, and ensure good drainage, especially in heavy soils. The woody rootstock tends to lift out of the ground over time, so mulch annually to retain moisture. Divide and replant every 3-4 years to maintain vigour