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Prune with caution
Hold off pruning forsythia, lilacs and other shrubs that bloom in spring or early summer. If you prune now, you’ll sacrifice this year’s flowers.
A few shrubs bloom on new stems that are produced this spring, such as old-fashioned snowball hydrangeas and pink-flowering spireas, for instance. Those may be pruned in spring as they begin to grow, and they’ll still flower this summer.
Wait to prune evergreen shrubbery such as junipers, yews and arborvitae, until you see new growth. Then, you can cut them back as long as you don’t remove all the new growth. These plants will keep growing all summer; you can prune them again in early to mid-July if you want to limit their size. Wait, too, to shorten the new growth of spruce and pines.
Hire an arborist if your shade trees need pruning. It’s not a job homeowners should tackle. To avoid oak wilt disease, oaks can’t be pruned in April, May or June. And though it’s not harmful, some trees — notably maples — will drip lots of sap when they’re pruned in spring.
Keep strawberries covered
Strawberries can be killed when night temperatures fall to the mid-teens, so don’t be too eager to uncover them. When you do, keep the mulching material close by, so you can rake it over the plants if we get a cold spell.
Deb Brown is a garden writer and former extension horticulturist with the University of Minnesota