The frequency of fertilizing your lawn depends on factors such as grass type, climate, season, and the type of fertilizer used. Here is a concise guide based on these factors:
General Recommendations
- Most homeowners fertilize their lawn at least twice per year
- A common recommendation is to fertilize 2 to 3 times per growing season
- Some experts suggest fertilizing every 8 to 10 weeks during the growing season, which translates to about 3 to 4 times per year
By Grass Type
- Cool-season grasses (e.g., Kentucky bluegrass, fescues) typically grow best in spring and fall and are usually fertilized twice a year : once in late spring and once in early fall
- Warm-season grasses (e.g., bermudagrass, St. Augustine) are fertilized about 3 to 4 times per year , starting about six weeks after the last frost and continuing through summer and early fall
Seasonal Timing
- For cool-season grasses , fertilize:
- After winter dormancy in spring (but not too early to allow carbohydrate buildup)
- Late summer or early fall to strengthen roots before winter
- For warm-season grasses , fertilize:
- After the last frost in spring when grass begins active growth
- Mid to late summer
- Early fall (but avoid fertilizing too late to prevent winter injury)
Additional Notes
- Avoid over-fertilizing as it can damage roots and cause lawn scorch
- The total amount of nitrogen applied per year is more important than frequency; follow soil test recommendations if possible
- Use slow-release fertilizers to provide nutrients gradually over time
Summary Table
Grass Type| Frequency per Year| Typical Timing
---|---|---
Cool-season| 2 times| Late spring, early fall
Warm-season| 3-4 times| 6 weeks after last frost, summer, early fall
In conclusion, for most lawns, fertilizing 2 to 3 times per growing season is sufficient, with timing adjusted based on grass type and local climate conditions. Always follow product instructions and consider a soil test for best results.
