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A detailed fertilizer schedule for a lawn in San Antonio, Texas, would involve multiple applications throughout the year, tailored to the specific type of grass and the time of year. Here is a general schedule as a starting point: Spring: Early Spring (March-April): Conduct a soil test to determine the soil's pH and nutrient levels. Use the results to adjust the fertilizer schedule as needed. Late Spring (May-June): Apply a slow-release fertilizer high in phosphorous and potassium to promote root development in warm-season grasses such as Bermuda and Zoysia. These grasses typically go into a growth spurt this time of the year, so it is crucial to provide them with the necessary nutrients. Summer: Early Summer (July): Depending on the soil test results and the lawn condition, apply a maintenance fertilizer to keep the lawn healthy. Late Summer (August-September): It's a good idea to give another maintenance fertilizer application; this will keep the lawn healthy during the hot summer months and help them prepare for the coming fall. Fall: Early Fall (October-November): Apply a slow-release fertilizer high in nitrogen to promote healthy growth in cool-season grasses such as fescue and bluegrass. Late Fall (December): An optional fertilizer application can help the lawn recover from any stress caused by the hot summer months and prepare for the winter. It's important to note that this schedule is a general guideline and can be adjusted depending on the specific needs of your lawn as determined by a soil test. It's also essential to always follow the instructions on the fertilizer package and to water your lawn after fertilizing to help the fertilizer reach the roots. Maximize the potential of your lawn in San Antonio by consulting with a professional lawn care service or horticulturist to create a custom fertilizer schedule that fits your soil and grass type.