Table of Contents
March marks an important time for lawn care, especially when it comes to fertilizing. Different grass types require specific nutrients to thrive as they transition from winter dormancy to active growth. Proper fertilization in March can lead to a lush, healthy lawn throughout the growing season.
Understanding Your Grass Type
Before fertilizing, identify your grass type. The main categories are cool-season grasses and warm-season grasses. Each has unique fertilization needs, especially in early spring.
Cool-Season Grasses
Examples include Kentucky bluegrass, fescues, and perennial ryegrass. These grasses thrive in cooler temperatures and benefit from early spring fertilization to promote vigorous growth.
Warm-Season Grasses
Examples include Bermuda, St. Augustine, and zoysia. These grasses are more active in late spring and summer, so fertilizing in March should be minimal or avoided until soil temperatures rise.
Fertilizing Tips for Cool-Season Grasses
In March, cool-season grasses benefit from a balanced fertilizer that promotes root development and green-up. Use a fertilizer with a higher nitrogen content to encourage lush growth.
- Apply a slow-release nitrogen fertilizer.
- Ensure soil pH is between 6.0 and 7.0 for optimal nutrient uptake.
- Water the lawn thoroughly after fertilizing.
- Avoid fertilizing if the soil is still frozen or very wet.
Timing and Frequency
Fertilize cool-season lawns in early to mid-March. A second application can be made in late March if needed, but avoid over-fertilizing to prevent disease and runoff.
Fertilizing Tips for Warm-Season Grasses
Warm-season grasses should generally be fertilized later in spring, once soil temperatures consistently reach 65°F (18°C). In March, focus on soil preparation rather than fertilization.
- Test soil to determine nutrient deficiencies.
- Apply a starter fertilizer if planting new grass.
- Delay heavy fertilization until active growth begins.
Preparing for Spring
March is a good time to aerate and overseed warm-season lawns. Proper preparation ensures that when fertilization begins, the grass can absorb nutrients effectively.
Additional Tips for Healthy Lawns
Besides fertilization, consider these practices for a healthy lawn:
- Remove debris and thatch buildup.
- Adjust mowing height to prevent stress.
- Water deeply but infrequently to encourage deep roots.
- Control weeds early before they compete with grass.
By following these fertilizing tips tailored to your grass type, you can ensure a vibrant, resilient lawn ready to face the growing season.