How to Plant a New Lawn from Seed: A Complete Guide

Starting a new lawn or filling patchy areas? Consider grass seed. While not perfect for every region, seed offers more grass options for many homeowners.

Spring and fall are best for sowing — seeds grow optimally at 60–80°F. Check local recommendations for precise timing; warmer climates allow later fall sowing than colder ones.

Why Start from Seed?

• Save money. Seed costs 2–8¢/sq ft (variety/spread rate dependent) vs. 8–30¢/sq ft for sod.
• Preferred grass type. Cool-season grasses (Kentucky bluegrass, perennial ryegrass, tall/fine fescues) grow better from seed.
• Flexible timing. Spring or fall planting.
• DIY-friendly. Plant yourself.
• Spot repairs. Fill small declined areas.

How to Plant Grass Seed

1. Prep the Ground

Proper preparation prevents lumpy, bumpy lawns that cause drainage issues, unhealthy grass, and tripping hazards.

2. Choose Your Grass Seed

Get county extension recommendations for your area — not all grasses grow well from seed. Many cool-season types do. Plan 2–4 lbs per 1,000 sq ft; each type has its own spread rate — read the bag.

3. Disperse the Seed

Using a handheld spreader at recommended rate, apply half the seed in one direction, half at right angles for even coverage. Drag a hard rake across soil for good seed contact. Alternatively, use a roller (rental stores) to press seeds in — some experts skip this, fearing depressions that collect water. If rolling, fill partially to reduce pressure.

4. Water and Mow

Lightly sprinkle several times daily to keep soil moist and cool. First 8–10 days: water 2–3×/day for 5–10 minutes with oscillating sprinkler. As seeds germinate, water less often but more deeply (once daily, 15–30 minutes). Wait until grass reaches 2–3 inches before mowing. With seeded lawns, frequent mowing improves fill-in. Never remove >⅓ grass height in one mowing.

Additional Tips

• Seed mixtures (2–3 grass types) create diverse, season-long green lawns. Blends (varieties of one grass) give uniform looks. Ask local experts.
• Some recommend straw cover for moisture retention and seed protection — remove promptly when seedlings reach 2–3 inches.
• Seeding is a great one-person afternoon project.