Aim for about 1 lb of actual nitrogen per 1,000 sq ft per feeding. The first number on the bag (the “N” in N-P-K) tells you the percentage — a 30-0-4 bag is 30% nitrogen, so ~3.3 lbs of product per 1,000 sq ft. Too little does nothing; too much burns the lawn and feeds disease.
Get it exact with the fertilizer calculator — and measure your lawn free first so the numbers are right.
Your biggest feeding of the year — a fall/winterizer formula for Nashville fescue.
Scotts Turf Builder WinterGuard 32-0-10
Beginner friendlyJonathan Green Winter Survival 10-0-20
Beginner friendlyThe Andersons Innova 7-1-2 (Organic)
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Here's the step most homeowners skip: Middle Tennessee's clay frequently tests slightly acidic, and acidic soil locks up the fertilizer you apply so the grass can't use it. A soil test (cheap, through UT Extension or a kit) tells you where you stand.
If pH is low, apply lime to bring it toward 6.0–7.0. Lime is slow, so fall/winter is the time to put it down. Without the right pH, every bag of fertilizer is partly wasted.
It's tempting to fertilize when the lawn looks tired in July — but for cool-season fescue that's exactly wrong. Summer nitrogen forces tender growth in the worst heat, which burns the lawn and fuels brown patch disease. Let fescue coast through summer (mow high, water deep) and save the real feeding for fall.
Feed tall fescue heavily in fall — a starter feeding in September with overseeding, and the most important feeding in late October/November. Add a light feeding in early spring. Never apply nitrogen in summer; the heat and humidity turn it into brown patch and stress.
About 1 lb of actual nitrogen per 1,000 sq ft per feeding. Read the first number on the bag (the nitrogen percentage) to work out how much product that is, and measure your lawn so you apply the right amount. The fertilizer calculator does the math for you.
For the big fall feeding, a high-nitrogen fall/winterizer lawn fertilizer. In September, a starter fertilizer (higher phosphorus) pairs with overseeding. Avoid heavy summer feeds. Match the product to the season more than the brand.
No — not with nitrogen. Feeding cool-season fescue in Nashville's summer heat causes tender growth that burns and invites brown patch disease. A light iron application for color is fine, but save real feeding for fall.
Often, yes. Middle Tennessee clay frequently tests slightly acidic, which locks up fertilizer so grass can't use it. A soil test tells you for sure; if pH is low, apply lime in fall/winter to bring it toward 6.0–7.0 so your fertilizer actually works.
Every bag covers a set number of square feet. Measure your Nashville lawn free in ~2 minutes so you buy the right amount and apply the right rate.
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