The frequency of fertilizing your lawn depends on the type of grass, climate, and fertilizer used, but general guidelines are as follows:
Fertilization Frequency
- Cool-season grasses (e.g., Kentucky bluegrass, fescue): Typically fertilize 3 to 4 times per year, starting in early spring and continuing through fall. Key times include early spring, late spring, early fall, and late fall (sometimes called "winterizer" application)
- Warm-season grasses (e.g., Bermuda, Zoysia): Fertilize mainly during their active growing season in late spring through summer, about 3 to 5 times per year depending on growth and climate
- General recommendation : Most lawns benefit from fertilization every 6 to 8 weeks during the growing season, which usually equates to about 4 times per year
- Some experts recommend a minimum of two applications per year if using slow-release fertilizers, but 4 to 5 treatments annually are common for optimal lawn health
Additional Tips
- Use slow-release fertilizers to provide nutrients steadily and reduce the risk of over-fertilizing
- Apply no more than 1 pound of nitrogen per 1,000 square feet per application to avoid burning the lawn
- Water the lawn after fertilizing to activate the fertilizer and avoid mowing immediately after application
- Conduct a soil test to tailor fertilizer type and amount to your lawn’s specific needs
- For shaded lawns, reduce nitrogen by half compared to sunny lawns to prevent excessive shoot growth and disease susceptibility
Summary
Grass Type| Frequency per Year| Timing Highlights
---|---|---
Cool-season| 3-4 times| Early spring, late spring, fall, late fall
(winterizer)
Warm-season| 3-5 times| Late spring through summer
General lawn| Every 6-8 weeks during growing season (about 4 times/year)|
Growing season months
Slow-release fertilizer| At least 2 times, up to 4-5 times| According to
product and lawn needs
Following these guidelines will help maintain a healthy, green lawn without over-fertilizing or causing damage
