How to prune aster × frikartii 'mönch'

Deadhead throughout summer; full cut-back in late autumn or early spring. Snip spent flower stems back to the nearest healthy lateral during flowering. In late autumn or early spring, cut all stems to within a few inches of the soil.

Deadhead regularly during bloom; cut back once annually. Deadheading spent blooms on this long-flowering aster extends the display from midsummer well into autumn. Remove faded flowers back to a healthy leaf or lateral bud. Cut the whole plant back to ground level in late autumn or early spring to keep it vigorous. Minimal shaping needed due to naturally tidy habit.

Snip spent flower stems back to the nearest healthy lateral during flowering. In late autumn or early spring, cut all stems to within a few inches of the soil.