By Golfgirl2222
United Kingdom 
Will it matter if I prune my physocarpus Diablo now after flowering instead of the Spring? It's about 15feet tall and put of control!
27 Jun, 2015
Hi, these are pruning group 1 or 2, group 1 is usually late winter or early spring while the plant is dormant, group 2 is usually after flowering, so you can do either, it doesn't matter, Derek.
27 Jun, 2015