How to prune hylotelephium 'autumn joy'

Early spring, just before new shoots emerge from the base. Cut all previous year's stems to within 5–8 cm of the ground in early spring. Leave spent flowerheads through winter if desired for frost interest and bird seed, then remove cleanly before growth resumes.

Annually (spring cut-back); optional deadhead in late summer. Hylotelephium 'Autumn Joy' benefits from cutting back once a year. Many gardeners leave the seedheads standing through winter for structural interest and wildlife value, then cut all stems to ground level in early spring. Deadheading mid-season is optional but extends the tidy look. No summer pruning needed.

Cut all previous year's stems to within 5–8 cm of the ground in early spring. Leave spent flowerheads through winter if desired for frost interest and bird seed, then remove cleanly before growth resumes.