Shop grass seed for a thick, resilient lawn

Whether you're filling in bare spots or thickening up thin turf, the right grass seed makes all the difference. Sunday's grass seed blends are designed to help you grow a greener, healthier lawn without the guesswork.

Looking for cool season coverage? Fescue Rescue Grass Seed handles shade and drought like a champ. Got a warm climate lawn? Bermuda Time Common Bermudagrass Seed thrives in heat and bounces back fast from heavy foot traffic. Find the right seed for your yard and get growing.

Why choose Sunday grass seed

• Pet Lawn Grass Seed: Tested on 160+ cultivars to find varieties that hold up to pet urine and heavy traffic, so your lawn stays green even with an active pup.
• Sun & Shade Seed + Feed: A versatile blend with built in nutrients that works in full sun, partial shade, or anywhere in between.
• Kentucky's Best Grass Seed: Dense, dark green bluegrass that's perfect for northern lawns and cooler climates.
• Lucky Lawn Grass Seed: Includes microclover to attract pollinators and stay greener with less water.

Every Sunday grass seed blend comes with a 99.9% weed free guarantee, so you're planting grass, not weeds. Our seeds hit an 85% germination rate, and every variety is hand selected for performance and resilience.

Tips for using grass seed

Timing matters when you're planting grass seed. Cool season grasses like fescue, bluegrass, and ryegrass do best when planted in fall or early spring, when soil temps sit between 55 and 75 degrees. Warm season grasses like bermudagrass prefer late spring to summer, when temps climb to 70 to 90 degrees.

For maintenance overseeding, plan on about 2 lbs of grass seed per 1,000 sq ft. That's enough to thicken up thin spots without overcrowding your existing lawn.

Keep the soil moist with light, frequent watering, about 1 to 2 times daily, until you see germination. New seeds need consistent moisture to sprout, so don't let the soil dry out between waterings.

Before you overseed, mow your lawn one notch shorter than usual. This helps seeds make contact with the soil instead of sitting on top of thick grass blades. The closer your seed gets to dirt, the better your results.

Not sure where to start? Build a custom lawn plan tailored to your yard.

Grass seed FAQs

How much grass seed do I need to overseed my lawn?

For overseeding, use about 2 lbs of grass seed per 1,000 sq ft. For heavy repair or starting from scratch, rates vary by blend. Check the seeding chart on your seed bag for the exact rate. As a reference, 1,000 sq ft is roughly the size of a volleyball court.

Can I plant grass seed on a lawn that already has weeds?

Yes, but you'll get better results if you pull or spot treat weeds first. Removing competition gives seeds more room to grow. Once your new grass fills in and thickens up, it naturally crowds out future weeds. For stubborn weeds, consider pairing grass seed with a targeted Weed Control product.

How long does it take for grass seed to germinate?

It depends on the grass type. Perennial ryegrass can sprout in 3 to 7 days, fescues take 6 to 12 days, and bermudagrass may need up to 21 days. Kentucky bluegrass is the slowest, sometimes taking up to 21 days. Keep the soil consistently moist until you see about 60% germination.

What type of grass seed is best for a pet friendly lawn?

Look for grass seed blends tested for urine resistance. Sunday tested over 160 cultivars to find the strongest varieties that hold up to pet traffic. For bare spots from pets, a patch repair product with seed, fertilizer, and mulch can fill in damaged areas in about 14 days.

Should I use fertilizer when overseeding my lawn?

A starter fertilizer can help new grass seed establish faster by giving seedlings the nutrients they need early on. Apply it right after overseeding for best results. Explore Sunday's Lawn Fertilizer options and avoid weed treatments for a few weeks so they don't interfere with germination.