How to prune hyssop

Early spring before growth resumes, or immediately after main summer flowering. Shear the plant back by one-half to two-thirds, cutting into the soft-green portion of each stem and leaving at least two or three leaf nodes on every shoot. Avoid cutting into grey-brown bare wood, which regenerates poorly. Shape into a compact rounded mound.

Annually; can deadhead lightly between main cuts to extend flowering. Hyssop is a woody-based herb that needs annual pruning to stay neat and productive. Cut the whole plant back by one-half to two-thirds in early spring before new growth starts, or immediately after the main summer flowering. This prevents woody legginess and encourages dense, aromatic growth. Never cut back into bare old wood.

Shear the plant back by one-half to two-thirds, cutting into the soft-green portion of each stem and leaving at least two or three leaf nodes on every shoot. Avoid cutting into grey-brown bare wood, which regenerates poorly. Shape into a compact rounded mound.