Annual fertilizer schedule: When to fertilize so you don't burn it
By My Yard Editorial Team · 7/28/2026
The Quick Answer
Cool-season lawns want four feedings: late spring, early summer (light), early September, and late fall. The September and late-fall applications do 70% of the work.
The Witty Breakdown
Summer fertilizing is where people burn their lawns. Grass is trying to survive, not grow — heavy nitrogen in July is like a treadmill during a fever.
Total annual nitrogen should be about 3–4 lbs per 1,000 sq ft, split across those rounds.
Step-by-Step Fix
- 1
Use a slow-release nitrogen source for spring and summer rounds.
- 2
Skip or halve the summer feeding during drought.
- 3
Make the early-September round your heaviest.
- 4
Apply the late-fall round after the final mow but before ground freeze.
Pro-Tip / Do Not Do This
Never fertilize a dormant, drought-stressed lawn. You'll get salt burn stripes that outline your spreader path all summer.
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