How to Prune alum root 'Peppermint Spice'?
Remove faded flower spikes

alum root 'Peppermint Spice' · Heuchera 'Peppermint Spice'
Grow in a fertile, neutral soil in partial to full 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