Grass Seed

Seed bags carry two coverage figures and the difference between them is a factor of two. A new lawn takes roughly double the seed rate of overseeding an existing one, so a bag stating 5,000 square feet for overseeding covers about 2,500 as a new lawn.

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Overseeding and New Lawn Rates

The same bag covers two very different areas depending on the job. Overseeding scatters seed into existing turf to thicken it. A new lawn starts from bare soil and needs enough seed to form a full sward on its own.

Read which rate the figure refers to.

Coverage across this range runs 1,000 to 16,000 square feet, and a bag quoting the larger number is almost always quoting the overseeding rate.

Sun, Shade and Regional Mixes

Mixes are blended for light conditions and for region, and both matter more than brand. A sun mix sown under trees thins out within a season, and a shade mix in full sun does the same in reverse.

Scotts at 62 listings and Pennington at 54 carry most of the range, and both blend regionally.

The regional label describes climate rather than a state boundary.

Coverage and Bag Weight

Bag weights here run 0.16 to 50 pounds, and weight does not map neatly onto coverage because seed size differs between species. Compare the stated square footage rather than the pounds.

Measure the lawn and subtract beds and drive before buying.

That single step makes every purchase in lawn care straightforward.

Spreading Seed Evenly

Seed needs a spreader for the same reason fertiliser does, and hand-scattering produces visible stripes that persist for a season. The broadcast and drop spreaders are in lawn equipment.

Two passes at right angles at half the setting covers more evenly than one pass at full. Under-applying twice is recoverable and over-applying once frequently is not.

What a 5,000 Square Foot Bag Actually Covers

The bag figure is almost always the overseeding rate, which is the smaller job.

JobSeed rateArea coveredNeeds
Overseeding existing turfBase rate5,000 sq ftSpreader
New lawn from bare soilAbout doubleAbout 2,500 sq ftSpreader, rake
Patch repairAbout doubleAbout 2,500 sq ftBy hand
Dormant overseedingAbout 1.5xAbout 3,300 sq ftSpreader

Grass Seed Questions

Why do bags list two coverage figures?

New lawns take about double the seed rate of overseeding. A bag stating 5,000 square feet for overseeding covers roughly 2,500 from bare soil.

Does bag weight tell me coverage?

No. Seed size differs between species, so compare the stated square footage rather than the pounds.

Do I need a spreader for seed?

Yes. Hand-scattering leaves stripes that show for a season. Two passes at right angles at half the setting covers most evenly.

Does a shade mix work in sun?

It thins out within a season, and a sun mix under trees does the same. Match the mix to the light before matching it to the brand.