American alum root Dale's strain

Grow in a fertile, neutral or slightly acid soil in light 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 to retain moisture. Divide and replant every 3-4 years to maintain vigour

Remove faded flower spikes

Propagate by division in autumn

May be susceptible to vine weevil

May be susceptible to heuchera rust