How to prune physocarpus opulifolius 'coppertina'

Immediately after flowering (June–July) for routine thinning; late winter for hard renovation only. Remove the oldest, darkest canes at soil level each year to promote fresh copper-coloured shoots. For an overgrown plant, cut the entire shrub back to 30–45 cm in late winter — it regrows vigorously but won't flower that year.

Annually after flowering. 'Coppertina' is a large, fast-growing ninebark with copper-orange new growth. Annual post-flowering thinning maintains vigour and colour intensity. Cut the oldest third of canes to the ground after bloom. The shrub tolerates hard renovation in late winter if it becomes overgrown, but you will lose that season's flowers.

Remove the oldest, darkest canes at soil level each year to promote fresh copper-coloured shoots. For an overgrown plant, cut the entire shrub back to 30–45 cm in late winter — it regrows vigorously but won't flower that year.