While many hydrangea bloom on old wood, some bloom on new wood. The Hydrangea Paniculata varieties are such that bloom on new wood. Before pruning be sure that the variety your are pruning is a paniculata variety. As such, now is the time to prune them down to about 12 - 18".
Place birdhouses built this winter outdoors this month, birds will begin looking for nesting sites soon.
Apply horticulture oil now to ornamental trees and shrubs with a history of aphid, scale or spider mite infestations. Destroying these pests now will reduce your use of pesticides later.
Apply Corn Gluten to your gardens and vegetable beds to aid in weed prevention. When applied early enough, corn gluten will help prevent some weeds from emerging.