Pruning guide
How to prune aromatic aster
More aromatic aster care
Pruning aromatic aster — FAQ
When should I prune aromatic aster?
Late spring (May–June) for pinching; after frost for cutting back. Pinch stem tips by one-quarter to one-third before mid-June to keep growth dense. Cut all stems to 2–3 inches above the crown once frost has killed the foliage.
How often does aromatic aster need pruning?
Annually — one pinch in spring, one cut-back in autumn. Aromatic Aster is naturally mounding and relatively compact, making it one of the lower-maintenance asters. A light pinch in late spring encourages even bushier growth and abundant late-season blooms. Deadheading is not essential. Cut stems back to the crown after frost; the fragrant foliage is attractive even when spent.
How do you prune aromatic aster?
Pinch stem tips by one-quarter to one-third before mid-June to keep growth dense. Cut all stems to 2–3 inches above the crown once frost has killed the foliage.