April Garden Tips

Ornamental Trees and Shrubs

  • Plant trees, shrubs perennials and annuals now.
  • Examine shrubs for winter injury. Prune out all dead and weakened wood.
  • Prune spring flowering shrubs such as Azaleas and Camellias after they finish blooming.
  • Begin planting out summer bulbs such as caladiums, gladiolus and calla lily


  • Continue broadleaf weed control – Bonide Weed Beater or Jonathan Green Lawn Weed Control.
  • Test lawn soil pH and apply Mag-I-Cal if needed. April is a great time to get your lawn into shape. 


  • Finish planting broccoli, Brussels sprouts, cabbage, and lettuce plants into the garden. Use Dr Earth Vegetable Fertilizer to help get plants off to a quick start.
  • Start cucumber, cantaloupe, summer squash, and watermelon seeds indoors in peat pots.
  • Finish sowing seeds of all cool-season vegetables not yet planted.
  • Thin out crowded seedlings from early plantings of cool season crops such as beets, carrots, onions and radish.
  • Mix organic matter and fertilizer into your vegetable garden. We recommend Coast of Maine Lobster Compost and organic Dr. Earth Tomato Vegetable & Herb Fertilizer.
  • Water Deeply – your veggie garden will need about an inch of water a week. Remember, water the roots NOT the plant leaves!


  • Plant fruiting trees and shrubs now. You’ll have berries and fruit to pick by next summer.
  • Protect bees and other pollinating insects. Do not spray insecticides on fruit trees that are blooming.


  • Mount a rain gauge on a post near the garden to keep track of precipitation so you can tell when to water. Most gardens need about 1 inch of rain per week between April and September.
  • Hummingbirds return from their winter home in Central America so put out your feeders now to attract the incoming hungry hummingbirds.
  • If you have a pond, begin feeding your fish Tetra Spring & Fall Fish Food when the water temperatures are above 50 degrees.