Although Mother Nature can deliver some surprises in Spring, such as unseasonably cold temperatures in March and frosty nights in April, May is generally quieter. For gardeners, this means there's almost no limit to the gardening activities that can be done this month.
According to Dr. Leonard Perry, Extension Professor at the University of Vermont, the first order of business in May is to finish up any chores that didn't get done in April, such as removing wraps from trees and shrubs. Also, rake out flowerbeds and remove last year's stalks from perennial plants. If you can't break them off easily, cut them with a pair of sharp shears. Be careful not to remove new growth from plant crowns.
Pruning shrubs, small trees, and bushes is also a top priority this time of the year. Prune broken branches from trees and shrubs before they fall and injure someone. You also can prune Summer flowering shrubs, hedges, and evergreen trees now. But by May it's too late to prune fruit-bearing trees like crabapple, plum, and cherry and too early to cut back spring-flowering varieties such as forsythia and lilacs. Wait until flowering is through for the year.
May is a good month to work on your lawn. I've already thoroughly raked my lawn to remove dead grass and give it room to breathe. Top dress bare areas with a mix of topsoil and peat, then reseed. Use a quality grass seed mix containing Kentucky bluegrass, red fescue, and perennial ryegrass. Water seeded areas, keeping them moist as the grass starts to grow.
This is also a good time to fertilize your lawn to encourage healthy growth. Use a balanced fertilizer, one containing nitrogen, phosphorus, and potash. However, a soil test is recommended as it will tell you if your soil already contains enough potash and phosphate, in which case you may only need a light application of nitrogen. Many lawns also need lime to grow well. A soil test will tell you how much to apply.
This is the primary planting month for vegetable gardens. Early this month you can plant cool-season crops such as peas, spinach, herbs, onions, and lettuce. Plant root crops, cole crops, and beans next. Wait until Memorial Day or later, depending on the last frost, to put in tender crops such as tomatoes, peppers, eggplant, and melons.
If you are thinking of putting in a new flowerbed, prepare the bed by working the soil to a depth of one foot. Mix in lime if needed and organic matter in the form of peat moss or compost. Pay attention to flower color and placement. If a bed is to be viewed from one side only, then place taller plants in the back. Otherwise, put them in the center of the bed.
Avoid planting all the early flowering plants in one area or all varieties with the same flower type. If you are creating beds to be enjoyed from inside the house, plant hot-colored annuals and perennials (yellows, oranges, reds) in the front part of the bed. Plant blues and purples farther away. Adding plants with silvery foliage will help tie the color groups together.
Good luck with your lawn and garden this Spring.
Paul
