How much grass seed for a 1/4 acre?
A full quarter acre (10,890 square feet) of new tall fescue lawn needs about 65.3 pounds of seed, or 4 bags of 20 lb, at 6 lb per 1,000 sq ft. In Kentucky bluegrass it would be about 22 pounds.
How to work it out
- 10,890 sq ft ÷ 1,000 × 6 lb = 65.3 lb
- 65.3 lb ÷ 20 lb per bag = 4 bags
A quarter-acre lot rarely has a quarter acre of lawn once the house, drive and beds are subtracted, often more like half of it. Measure the actual grass area with the lawn area calculator before buying; it could halve the seed bill.
Adjust for your project
More options: Acres · Price · Purity …
- Seed needed
- 65.3 lb (29.6 kg)
- Seeding rate used
- 6 lb per 1,000 sq ft
- Straw to cover new seed (optional)
- 11–17 bales of weed-free straw (about 545–817 lb)
- Starter fertilizer
- 43.6 lb of a 24-25-4 starter (≈1 lb phosphate per 1,000 sq ft)
- Cool-season grasses usually establish best from late-summer / early-fall seeding, with spring as a second choice.
- No weed-and-feed or crabgrass preventer around seeding. Most of them stop grass seed from sprouting too. Rutgers and UNH Extension: use only a weed product whose label says it is safe for newly seeded lawns, and read it before you buy.
- Straw is optional: use weed-free straw (not hay), spread thin and even. It keeps the seed damp and stops it washing off slopes.
- More seed isn’t better — overcrowded seedlings compete and thin out. Good seed-to-soil contact and steady moisture matter more.
Tall fescue for a quarter acre, by bag size
| Bag size | Bags to buy |
|---|---|
| 3 lb | 22 bags |
| 7 lb | 10 bags |
| 20 lb | 4 bags |
| 50 lb | 2 bags |
What to know about seeding a quarter acre
Sixty-five pounds sits awkwardly between bag sizes: four 20 lb bags leaves about 15 lb over, while one 50 lb bag plus a 20 lb bag leaves about 5 lb. Three 20 lb bags (60 lb) works out to about 5.5 lb per 1,000 sq ft, still inside the 5–8 lb extension range if you are happy seeding at the light end. Leftover seed keeps for patching next year if stored cool and dry.
This is push-spreader territory. Hand-throwing ten thousand square feet gives stripes of thick and bare grass. Mark the edges, set the spreader from the bag, and run half the seed north–south and half east–west. On bare soil, figure 11–17 bales of weed-free straw and about 44 lb of a 24-25-4 starter fertilizer as well.
Water is the hidden cost. Keeping a quarter acre of new seed damp means watering lightly once or twice a day for a few weeks, and each inch of water on 10,890 sq ft is roughly 6,800 gallons; the garden watering calculator works out the time for your hose or sprinkler. If that is not realistic, seed in early fall when rain and cooler nights do part of the work, or seed in sections.
Compare the rate with how much grass seed for 1,000 sq ft of tall fescue: the quarter acre is just that answer times 10.89. For bigger lots, enter acres in More options.
Different size? Use the full Grass Seed Calculator.
What you’ll need
- Broadcast spreaderMid-range price
Spreads seed and granular fertilizer evenly. Use the setting on the product label, then check it on a measured area.
See options on Amazon (opens in a new tab) - Measuring wheelBudget price
Rolls off long distances — driveways, lawn edges, fence lines — quicker and more accurately than a tape for one person.
See options on Amazon (opens in a new tab) - Hose timerMid-range price
Shuts the water off for you. Handy for new seed and sod, which need frequent short waterings.
See options on Amazon (opens in a new tab)
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Frequently asked questions
How much Kentucky bluegrass seed for a quarter acre?
About 21.8 pounds for a new lawn at 2 lb per 1,000 sq ft: 2 bags of 20 lb, with plenty left over.
How much seed to overseed a quarter acre of tall fescue?
About 43.6 pounds at 4 lb per 1,000 sq ft, or 3 bags of 20 lb.
How much grass seed if only half my 1/4 acre lot is lawn?
About 32.7 pounds of tall fescue for the 5,445 square feet of grass (2 bags of 20 lb). That is the more typical case on a quarter-acre lot.
How much tall fescue seed for half an acre?
About 131 pounds for 21,780 square feet at 6 lb per 1,000 sq ft: 7 bags of 20 lb. At that size, 50 lb bags are usually cheaper per pound.
Other common sizes
Sources
- Penn State Extension: Turfgrass Seed and Seed Mixtures (opens in a new tab) — Seeding rates for bluegrass (2–3 lb), tall fescue (6–8 lb), fine fescue; pure live seed adjustment
- NC State Extension Gardener Handbook, Ch. 9: Lawns (opens in a new tab) — Seeding rates incl. bermuda and zoysia 1–2 lb, centipede 0.25–0.5 lb per 1,000 sq ft
- NC State Extension: Tall Fescue and Kentucky Bluegrass Home Lawn Calendar (opens in a new tab) — Tall fescue at 6 lb per 1,000 sq ft; Kentucky bluegrass added at 1–2 lb
- Rutgers NJAES FS584: Seeding Your Lawn (opens in a new tab) — Bluegrass about 2 lb, tall fescue 4–6 lb per 1,000 sq ft; weed-free straw 50–90 lb (1–2 bales) per 1,000 sq ft; use only herbicides labeled for newly seeded lawns
- UNH Cooperative Extension: Starting & Overseeding Lawns (opens in a new tab) — Weed-free straw, about 1 bale per 1,000 sq ft, over new seedings; renovation (overseeding) works best when more than half the lawn is still good turf; power-rake thatch first; some crabgrass herbicides can only be used on mature turf, not new seedings
- UC IPM Healthy Lawns: Starter fertilizer (opens in a new tab) — At planting: at least 1 lb P and no more than 1 lb N per 1,000 sq ft
- UMass Soil and Plant Nutrient Testing Lab: Fertilizer Guide for Lawns (opens in a new tab) — Common starter 24-25-4; new-lawn phosphate from soil test (0.5 lb P₂O₅ per 1,000 sq ft in its example)
- LSU AgCenter: Pure Live Seed Calculation (opens in a new tab) — PLS = purity × germination; seed needed = PLS rate ÷ PLS; ryegrass overseeding rates in lb PLS
- UConn Home & Garden Education Center: Understanding Grass Seed Labels (opens in a new tab) — Coating weight is shown on the label (example: 50% of the bag); purity × germination = live seed
- Clemson HGIC 1206: Overseeding With Ryegrass (opens in a new tab) — Ryegrass into dormant bermuda: 5 lb per 1,000 sq ft on established lawns, 10 lb on bare areas; mow close and catch clippings; overseeding damages centipede, zoysia and St. Augustine
- UT Extension W161-J: Overseeding Bermudagrass with Perennial Ryegrass (opens in a new tab) — Initial overseeding 10–15 or more lb per 1,000 sq ft; sports turf may exceed 20 lb a season
- University of Arizona AZ1683: Overseeding Winter Grasses into Bermudagrass Turf (opens in a new tab) — Ryegrass at 12–15 lb per 1,000 sq ft; don’t scalp; St. Augustine and zoysia not suited to overseeding