Warm season grass should be fertilized from May through August. Early spring (March/April) fertilization benefits weeds and promotes premature top growth before roots begin to grow. Late fertilization (September) may interfere with the natural hardening process before winter. Cool season grasses can be fertilized in Mar-April to help prevent crab grass and feed the lawn as it wakes up and is hungry.
Feeding your lawn once a year is a very good thing in the spring to combat crab grass develop and help feeds as the turf comes out of winter dormancy. A good general idea though is to feed your yard four times a year to reap all the benefits as discussed earlier. The four part feeding will give your lawn that extra ump it needs to make you the envy of the neighborhood. The first feeding comes in the early spring, as mentioned, to feed the waking lawn from winter dormancy and deter developing crab grass and foxtail. In Missouri, the best time to feed is before April 5th, to make sure the fertilizer is in place before temperatures remain 50 Deg. for three days in with the crab grass develops. The second feeding comes in late spring (May-June) when the lawn is using up stored nutrients, and broadleaf weeds are actively growing with the constant warm weather hanging around. A good weed-n-feed combination is a good product to use during this application. The third application comes in mid-summer (July-Aug) when the lawn is suffering from the summer heat. A general fertilizer is a good thing to use to give your lawn that extra needed energy to help during this stressful time. The fourth application comes in early fall with cooler temperatures setting in and more rainfall. This again is another time that broadleaf weeds can become a nuisance. A good weed-n-feed is a good idea again to use at this time as with the late spring application.
If you have any questions on a good fertilization program, give us a call as we can help answer your questions.