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Spring Cleaning for Lawns and Landscaping


Lately the weather has felt more like Spring than Winter in our area. If your weekend plans include spending time outdoors, get a jumpstart on your yard! Here is a good read to get you off to a beautiful yard this summer.

Yard Cleanup Checklist: How to Get Your Property Ready for Summer

The other types of tasks discussed below involve getting your yard ready for gardening:

  • Preparing flower beds
  • Planting
  • Pest control
  • Weed control
  • Plant care

A thorough spring yard cleanup readies your lawn and landscaping for summer, but it can accomplish more than just that. In some cases, it will save you from headaches farther down the road.

Spring Yard Cleanup With Rake, Trash Bags and Scissors

In this first category of spring yard cleanup tasks, you will be picking up after Old Man Winter and any other slovenly bad neighbors you may have to put up with. Roll up your sleeves and start removing:

To open up brand new planting beds, you have a few options, including:

  • Using a tiller to break new ground.
  • Killing grass using a smothering method, to convert lawn space into a planting bed.
  • Building raised beds.

In particularly rough areas, you may wish to consider soil solarization.

If you’ve just opened up a planting bed by breaking new ground, you can be sure that weeds will find it quickly (“Nature abhors a vacuum,” as the maxim says). That’s why, in some situations, it’s smart to lay a landscape fabric over the ground, and cover it with a layer of mulch (the mulch protects the landscape fabric from harmful UV rays). Many don’t like landscape fabric in vegetable planting beds, where gardeners like to be able to reach down, scoop up a handful of soil, and admire its fertility up-close and personal; go with just a straight mulching here (straw is a favorite), if you feel the same way. But in a shrub planting bed, these weed barriers are a great ally in helping you achieve a low-maintenance yard.

Planting in Your Prepared Flower Beds

Now for the “good part”: Let’s get planting!

Early spring is a good time to install trees and shrubs and to plant perennial flower borders, as long as they’re hardy perennials. For annuals and tender perennials, wait till the last frost date has passed for your region (in New England, U.S., this was traditionally late May, when Memorial Day decorations are set out).

In the North, you can also start new lawns in spring or overseed a lawn that you already have. However, if you will be applying a preemergent herbicide in spring to control crabgrass (see below) in an existing lawn, it may be better to overseed in the fall.

Prevention: Crabgrass, Garden Pests

Sometimes it’s easier to fight weeds before they even emerge, rather than waiting till they rear their ugly heads. The use of landscape fabric and mulch was mentioned above in the context of garden beds, but you can’t use either of those on a lawn. That’s where preemergent herbicides come into play, particularly for crabgrass control. Spring is the time to use a preemergent herbicide on crabgrass, and timing is of the essence. Crabgrass seed germinates when soil temperature reaches 55-60 degrees Fahrenheit. You need to apply the preemergent herbicide prior to this juncture. But who wants to keep sticking a thermometer in the ground to see if it’s time yet, right? There’s a more convenient method, used by the old-timers, and it involves keeping tabs on the flowering shrubs in your area. According to this method, just apply the preemergent herbicide sometime between the time the forsythias stop blooming and the lilacs begin blooming.

Garden pests pose another challenge that can best be addressed by taking preventive measures, in many cases. Many gardens need to be protected with rabbit-proof fences or deer fencing. In regions plagued by deer, it’s a smart idea to plant deer-resistant plants where fencing isn’t an option. An even greater number of gardeners are well advised to look into growing rabbit-proof flowers.

When Is the Best Time to Prune Shrubs?

Many readers ask, “When is the best time to prune shrubs?” There are different reasons to remove wood from shrubs. If we’re talking about old, dead wood or wood recently damaged by winterkill, then the question is quite different in nature from when we’re discussing healthy wood.

Yes, trees and shrubs can often profit from a bit of spring cleaning, too. Dead limbs and winterkill on branches should be pruned off. This is the easy part of pruning: Remember, you can’t go wrong pruning off something that’s already dead. And life and death are “color coded” on trees and shrubs, just beneath their bark, with brown signaling death, green life. The key is determining where the brown ends and the green begins, which you can learn more about in this piece on what to do about dead limbs on a magnolia.

But when is the best time to prune shrubs, in terms of healthy wood? Here, the question is different, because you can go wrong with your timing. And while dead branches should always be removed, the necessity of pruning off live branches is often determined by one’s eye for beauty on a small shrub (to give it a more aesthetically pleasing shape).

The best time to prune shrubs in order to shape them varies from shrub to shrub, so let’s begin with the broadest groupings of shrubs and work our way down to the shrubs that we should prune in early spring (if, in fact, our eye for beauty tells us they need pruning at all):

  • Best time to prune evergreen shrubs
  • Best time to prune flowering shrubs

The question of the best time to prune flowering shrubs is the one that causes people more trepidation every spring, since improper pruning will result in the loss of the blossoming displays to which we so look forward all winter long. To simplify, think of it this way:

  1. Shrubs that bloom in spring have to have their buds already in place, on old wood (last year’s growth), so that they’re ready to kick into action when the warm weather comes; if you prune these branches off, you lose the flowers.
  2. But shrubs that bloom later in the year don’t need that head start, blooming instead on new wood (growth produced in the current season).

Group 1 above includes flowering shrubs such as:

  • Forsythia
  • Korean spice viburnum
  • Lilacs

Wait to prune such shrubs until after they have finished blooming.

Group 2 above includes flowering shrubs such as:

  • Butterfly bush
  • Rose of Sharon
  • Lavender
  • Bluebeard
  • Beautyberry

You can go ahead and prune such shrubs in late winter or early spring, if you wish, without fear of losing blooms.

Plant Care in Spring: What About the Mulch Covering Perennials?

Regarding any deep layer of mulch you may have had covering your perennials during the winter, it is a good idea to monitor the situation to determine when to pull it away, so that the perennials can come through unhindered. An exact date cannot be provided for when to remove the mulch protecting your perennials: You have to play it by ear, and when exactly you remove such mulch will, obviously, vary according to where you live. But if you’ve applied a deep layer of mulch, it will eventually need to be scraped away from the ground immediately under which your perennials lie, as otherwise it may smother the perennials. The best approach, once the ground is starting to thaw, is to begin checking, in late winter or early spring, to see whether your perennials are pushing up. If they are, remove the mulch when it’s warm out but replace it when the cold returns (until the cold stops returning altogether).

Plant Care in Spring: Dividing Perennials

Finally, some perennials can profit at times from being divided. Most perennials can be divided in spring, but there are some noteworthy exceptions. For examples, you’ll want to consult the full article on dividing perennials.

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