10 plants not to prune in spring

The following shrubs usually flower in late spring and early summer on the previous year’s growth, so only prune after they have flowered. By pruning them in spring you may cut off the buds and get no flowers this year:

Philadelphus

Ceanothus

Rhododendron

Weigela

Kolkwitzia

Pieris

Escallonia

Deutzia

Spiraea ‘arguta’

Syringa