How to prune physocarpus opulifolius 'little devil'

After flowering (June–July). Remove dead or damaged stems back to healthy wood or the base. Thin one or two of the oldest stems every few years if the centre becomes congested. Beyond this, leave the plant to develop its natural compact shape without intervention.

Every 2–3 years, or as needed. 'Little Devil' is a dwarf, naturally compact ninebark that requires minimal pruning. Its tidy habit means it rarely needs shaping. Simply remove any dead, damaged, or crossing stems after flowering. Avoid heavy pruning — it ruins the natural mounded form and is unnecessary on this cultivar.

Remove dead or damaged stems back to healthy wood or the base. Thin one or two of the oldest stems every few years if the centre becomes congested. Beyond this, leave the plant to develop its natural compact shape without intervention.