What Are the Moisture Requirements for alum root 'Thomas'?
Moist but well drained

alum root 'Thomas' · Heuchera 'Thomas'
Grow in a fertile, neutral soil in sun or partial shade, and ensure good drainage, especially in heavy soils. The woody rootstock tends to lift out of the ground over time, so mulch annually or lift and replant every few years
Moist but well drained