Horticultural aide memoire Prune Hydrangea paniculata
Hydrangeas come and go in popularity. The in-crowd at present favours Hydrangea paniculata, a big fellow with round-ended conical blooms that dominate the woodland garden in late summer. Although some hydrangeas are a little delicate, so that we leave the papery flowers on until May, H. paniculata is made of sterner stuff and should be pruned now. This shrub obeys the golden rule of pruning: the harder you prune, the more growth it produces. What’s more, the flowers will be bigger, too, so reach down with your secateurs and prune right back to within a few buds of ground level.