In Oklahoma, you should generally fertilize your lawn 4 to 6 times per year, depending on your grass type and soil health. A standard professional schedule for Bermuda grass includes early spring pre-emergent, late spring fertilization, mid-summer fertilization, late summer maintenance, and a fall pre-emergent/winterizer.
The Oklahoma Fertilization Schedule
Timing is everything when it comes to fertilizing in the unpredictable Oklahoma climate. Applying fertilizer too early can feed winter weeds, while applying it too late in the fall can harm warm-season grasses before they go dormant.
Step-by-step guide for Bermuda grass:
- February/March: Apply a pre-emergent herbicide to stop spring weeds before they sprout.
- April/May: Apply the first round of nitrogen-rich fertilizer once the grass has fully greened up.
- June/July: Apply a slow-release summer fertilizer to maintain color during the heat.
- September/October: Apply a fall pre-emergent to stop winter weeds, along with a winterizer to strengthen roots.