To Prune or Not to Prune? August Shrub and Vine Tips for West Coast Gardens ✅ Remove dead, damaged, or diseased branches from anytree or shrub ✅ Thin out shrubs and trees to improve airflow and light penetration ✅ Continue deadheading repeat-blooming roses and hydrangea macrophylla ✅ Keep vigorous vines like wisteria and trumpet vine in check to protect structures ✅ Thin fruit trees to help light reach ripening fruit ✅ Remove sunburnt or discolored hosta leaves without cutting the whole plant do