Now's the time to fertilize your trees and shrubs.  Use a rhododendron or an Evergreen type of plant food to feed evergreens and acid loving plants like Rhododendrons, Camellias, Azaleas, and Junipers.  Use an all purpose fertilizer (10-10-10) to feed roses, deciduous shrubs and trees.  Be sure to water the fertilizer in thoroughly after it is applied.

Early flowering deciduous shrubs such as Forsythias, Weigela, and Spirea should be pruned back when they have finished blooming.  Cut back 1/3 of the oldest cames to g round level, then cut back 1/3 of the remaining branches by one third of their height. 

Remove the wilting seed heads from Rhododrons and Azaleas, so that the plants energy can go to the foliage growth and next years flowers, rather than seeds. 

Work lime into the soil around your Hydrageas to produce pink flowers or Aluminum Sulphate for blue. 

Remove any sucker growths from fruit trees as soon as they appear.  Keep a vigilante eye on the roses.  Keep them sprayed for aphids andother pests and diseases such as black spot. 

Pines and other conifers can be kept to a compact size by pinching off the new growth "candles". 

Lilacs should be pruned lightly after they finish blooming, removing sucher growths and dead blooms..feed lilacs in May with a good all purpose 10-10-10 fertilizer after they have finished blooming.  If your soil has an acidic ph, work a little lime into the soil as well.