Warm Season Grasses will go dormant and turn brown when the soil temperatures falls below 70 Degrees Fahrenheit. However; You can enjoy a Green Lawn during the Winter moths by Over Seeding Ray Grass in the fall.
ROD'S LANDSCAPE WINTER LAWN
OVER SEEDING TIPS:
Turn off the Sprinklers for your lawn for a least a week.
Scalp Down the Lawn.
Apply Perennial Ryegrass Seed at rate of 25 lbs per 1000 sq. ft. (Spreading the same in two perpendicular directions.
Rake or Drag to ensure the seeds make contact with soil.
Lightly cover the seed with no more than 1/4 " of top Soil. This step can help retains moisture and modulates cool temperatures for see germination.
Keep seeds damp by watering tree to four times per day with 5 to 10 minutes duration.
After Germination (10-15 Days) reduce the watering to once per day for one week.
After the Second Mowing, reduce to watering as needed. This dependent upon temperatures, winds or rains.
Two week after planting. Fertilize with 6-20-20 Pro Started.
Fertilizing too early may cause the Bermuda to compete strongly with the Rye Grass and weaken it the establishment.
Waiting too long may allow seedlings to starve and die.
Establish nice and green color with 16-4-4 with Iron.
Then Fertilized monthly with 21-4-7 only in the cool seasons (Winter Months).