How to Fertilize alum root 'Zipper'?
Balanced perennial feed every four weeks from spring through summer

alum root 'Zipper' · Heuchera 'Zipper'
Grow in fertile, humus-rich, moist but well-drained soil, in sun, where it will colour more richly, or in partial shade or full shade, and mulch every year; the rootstock tends to push upwards, so every few years, in late summer or early autumn, divide and re-plant with only the crown above ground
Balanced perennial feed every four weeks from spring through summer