Q: Is it really necessary to clean up leaves in my yard? Why not just leave them on the lawn to disintegrate into organic matter?

A: Leaves and other debris left on your lawn can block vital sunlight needed by your turf grass. Fallen debris from your trees may also harbor fungus that can produce spores in the spring. Raking and destroying infected leaves can reduce Marssonina leaf spot, ink spot and leaf rust, which are common among poplar species. If fungus is not a concern, a mulching mower is a good way to return the leaves to the soil.

Q: Is it safe to divide and transplant my peonies now, or should I wait until spring?

A: Mid-September through mid-October is a good time to separate and transplant spring and early-summer blooming perennials, such as peonies. If dividing the plant, make sure each piece of the tuberous rootstock has 3 to 5 eyes or buds. Plant them no more than 1 to 2 inches deep, otherwise they will not bloom.

Q: What is the difference between core aeration and power-raking, and when should it be done?

A: Both are techniques for managing thatch buildup in your lawn, and when used properly, can help improve the growing conditions for turf grasses. Thatch can become a problem on Kentucky bluegrass, bentgrass and fine fescue lawns if it becomes thicker than one-half inch. However, clippings do not contribute to thatch buildup and should be recycled in your lawn to benefit from the nutrients they contain.

Light power raking may be beneficial if done often. Deep power raking can be damaging as it may remove living turf along with the layer of thatch. Core aeration is more beneficial than power raking because it not only helps improve the root zone by relieving soil compaction but also helps control thatch accumulation. Fall is an excellent time for aeration and is a good first step in overseeding an existing turf area.

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This page updated:  November 1, 2006