Shrubs & Trees:  There still is time to plant trees & shrubs.  However, by mid month it will be a little late to transplant large trees or shrubs, so do them now.

The months of March, April and May are ideal for pruning evergreens.  so, if you have a Juniper, Cypress or conifer that need shearing or pruning this is a good time to accomplish this task.  remove all dead, diseased and undesirable wood.

Prune your Forsythia after it finishes flowering.

Broadleaf and needle leaf evergreens benefit most from lightly spreading a high nitrogen fertilizer around their bases.

Perennials, annuals, and bulbs:  April is the month for planting summer flowering bulbs like dahlias, gladiolas and lilies.  Mix bulb fertilizer, processed manure and peat moss into the planting soil.  Tuberous Begonias and Canna should not be set outdoors until all danger of frost has passed, so wait until next month.

Plant annual seeds like Asters, Cosmos, Marigolds, and Zinnias in the garden.  When all frost danger has passed you can moved your stored fuchsias and geraniums outdoors. Divide perennials like Daylilies, Delphiniums, Iris, Chrysanthemums, Daisies and Phlox.  the additional plants you create can be traded or given to friends, or moved to a new area of the garden.

Hybrid Tea Roses should be fertilized prior to buds beginning to bloom.  Using a systemic fertilizer will help prevent insect infestation later in the summer, as it feeds your rose.  Plant new rosebushes before growth starts and buds swell. 

If you have a pond or pool you should set aquatic plants any time after the middle of the month.