How to prune annual phlox

Pinch tips at 10–15 cm tall (early growth); deadhead throughout summer. Pinch the central growing tip between thumb and forefinger to promote branching. Deadhead by removing spent flower clusters back to the nearest leaf node or bud. No hard pruning needed — plants are discarded after the first frost.

Pinch once at establishment; deadhead every 1–2 weeks through summer. Annual Phlox (Phlox drummondii) is a true annual, so pruning is about maximising bloom rather than long-term structure. Pinch out growing tips when seedlings reach 10–15 cm to encourage bushy growth. Deadhead spent flowers regularly throughout summer to prolong blooming. Discard plants at season's end.

Pinch the central growing tip between thumb and forefinger to promote branching. Deadhead by removing spent flower clusters back to the nearest leaf node or bud. No hard pruning needed — plants are discarded after the first frost.