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Buffalo grass starts to turn brown when encountering drought during the normal growing season. You can water the grass when you begin to notice some browning to prevent it from going dormant. Additionally, buffalo grass turns brown after the first freeze of late autumn or early winter, and this is a natural time for the grass to go dormant.

When spring arrives, it’s best to hold off on mowing until temperatures have consistently reached a temperature of at least 40 degrees Fahrenheit. Attempting to mow grass that hasn't fully thawed from its winter dormancy can harm the delicate blades. Ensure your grass is dry before mowing and aim to mow when the grass is about three to four inches tall, trimming no more than one-third of the grass blade's height at a time. This timing encourages healthy growth and prevents shock to the grass, preparing your lawn for a happy, healthy growing season.

There are several possible reasons why your Bermuda grass is not thick, with the biggest reasons being too little water, too much shade, compacted soil, drainage issues, and too few nutrients in the soil. Bermuda grass needs frequent and direct sunlight to stay thick, so thinning grass is likely the result of a lack of sun. 

To prepare your lawn for core aeration, water it the day before you aerate. (Alternatively, you can wait until it rains and aerate the following day.) Aerating after watering or a rainy day will make the process easier since you can penetrate moist soil better than dry soil. You should also flag your sprinklers so that you don’t accidentally hit them while aerating. If you have a lot of thatch buildup in your yard, you might need to dethatch your lawn before aerating as well.