Why Overseed in San Diego’s Mild Spring?
Spring in San Diego is ideal for overseeding lawns. Mild weather and longer days help new grass seed root before summer heat arrives. Overseeding fills bare spots, boosts density, and makes turf more resilient after dry winters. For more seasonal yard care, check our April gardening checklist for San Diego homeowners.
When to Start Overseeding
For best results, start in late March or April when daytime highs are 65–75°F. Seeding too late risks poor germination as the soil dries out.
Best Grass Seed for San Diego Lawns
- Perennial Ryegrass: Fast sprouting, ideal for high-traffic areas.
- Tall Fescue: Drought-tolerant, durable, and perfect for low-water yards.
- Bermudagrass: Excellent for full-sun, warm-season lawns.
Choose a seed that matches your existing grass for even growth.
How to Prepare Your Lawn
- Mow Low: Cut grass shorter than usual.
- Dethatch or Rake: Remove debris and old clippings.
- Loosen Soil: Aerate lightly so seed contacts soil.
- Fertilize: Use a starter fertilizer when seeding.
How to Spread the Seed
Broadcast evenly with a spreader. Lightly rake or drag a screen to cover seeds with soil. Water immediately and keep soil moist until the new grass sprouts (usually 1–2 weeks).
Aftercare for Strong Results
- Water lightly 1–2 times daily until grass reaches 2 inches.
- Avoid mowing for 3 weeks to let new roots establish.
- Limit foot traffic during germination.
Once established, water 2–3 times per week and resume normal care.