How to Propagate alum root 'Red Spangles'?
Propagate by division in autumn

alum root 'Red Spangles' · Heuchera 'Red Spangles'
Grow in a fertile, moist but well-drained, neutral soil in sun or partial shade. The woody rootstock tends to lift out of the ground so mulch annually or lift and replant
Propagate by division in autumn