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Homeowners should base their fertilizer programs on a soil test, (information available at the County Extension office). Most lawns in the North Texas area mainly need nitrogen. Turf grass requires more nitrogen than any other plants. Common Bermuda and St. Augustine need about 3 - 4# nitrogen per 1000 sq ft per yr, divided into four feedings. You can use the major holiday rule, Easter, Memorial Day, July 4 th and Labor Day as a rough guide for when to apply for fertilizer on these warm season grasses. The most important times to fertilize are spring and fall. You can reduce your fertilizer need by up to 50% by leaving clippings on lawn.
Ornamental trees and shrubs planted in fertile well-drained soil or in regularly fertilized lawn should not require annual fertilizing. If growing poorly, fertilizer may be needed, for shrubs and small trees, spread evenly under branches in late winter or early spring. Fall feeding can be beneficial to poorly growing plants, also.
For landscape trees –if needed, apply fertilizer around the tree at the dripline (keep away from trunk).
Always read the label on any product you purchase for use on the home lawn or garden. More is not better in the use of garden chemicals. Fertilizer is not a substitute for proper cultural practices such as attention to insects and diseases.
Master Gardeners can answer home lawn and garden questions Monday - Friday, at 903-813-4204.