As nighttime temperatures in the Southwest start to creep up into the 60s, the Bermuda grass, which has been dormant all winter, begins to wake up and grow. As daytime temperatures exceed 90 degrees, the winter Rye grass should begin to recede. It is during this transition period where both types of grass compete for space and water.
Transitioning from Ryegrass to Bermuda grass is, ideally, a gradual process that typically lasts from the beginning of April through the end of May.
What To Expect
Subtle changes occur in turf areas throughout the transition period. Irrigation Technicians monitor watering times in the common areas to encourage Bermuda grass growth. Through this process, less water is used, not more. To suppress the Ryegrass growth, we gradually lower mower heights from 2 inches down to 1-1.25 inches.
As Ryegrass dies off, turf may appear off-color or yellow and there may even be some areas that appear dry. This is a temporary condition that improves as the Bermuda grass fills in. Sometimes when the Ryegrass dies, it forms a thick mat which is easily removed with a verticutting machine. Once Bermuda grass is actively growing, ideally by early May, Ammonium Sulfate fertilizer (21-0-0) is applied to enhance color and growth and promote healthy turf.
Try It At Home
Transition will take place on a large scale in your Community over several weeks and the same process can be applied to your yard. Gradually lower the height of your lawn mower over the course of a few weeks and reduce the amount of water to approximately 6-8 minutes every 2 or 3 days. If you encounter some dead spots, use a hard rake to remove the matted Ryegrass. Apply Ammonium Sulfate fertilizer (21-0-0) at a rate of 5 lbs. per 1,000 sq. ft. of turf. By the 1st of June, your Bermuda grass will be ready for the summer months.