Lawn aeration is an important spring lawn care practice to reduce soil compaction, help control thatch and improve water infiltration. The soil should be moist so the cores can be easily pulled out of the turf. Leave the cores on the top of the turf—the soil will move into the thatch layer and help with decomposition.

Bulb foliage often emerges early on the warm south and west sides of homes. You won’t be able to stop the bulbs from growing, but you can provide some protection from severe cold snaps with a temporary layer of 2-3 inches of mulch or discarded holiday greens placed around the foliage.

Cut back ornamental grasses about 6 – 12 inches above the ground when new growth appears at the base of the plant. Depending on the thickness of the plant, you may have to use a hand saw to cut through the old foliage. Russian sage, butterfly bush, and bluebeard (caryopteris) also benefit from being cut back in the spring.

Fortunately, the much-hyped story of Formosan termites in mulch from Hurricane Katrina destruction will not be a problem in Colorado. These particular termites are a subtropical species and will not survive in Colorado’s climate.

Bare root nursery stock is only available in early spring. You’ll find shade and fruit trees, shrubs, small fruits and roses available at garden centers at reduced prices because they haven’t been potted up. They can and should be planted immediately, before they start to leaf out. Soak the roots in water overnight before planting.

The authors have received training through Colorado State University Cooperative Extension's Master Gardener program and is a Master Gardener volunteer for Larimer County.

Gardening and Insect Fact Sheets are available on-line by clicking HERE.

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This page updated:  May 26, 2006