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How Much Grass Seed for Half an Acre?

An acre of land is 43,560 square feet, so half an acre is 21,780 square feet. The amount of grass seed you need to start a new lawn on 1/2 acre of land will depend on the type of grass seed you are using.
  1. Cool Season Grass Seed

    • Starting a new lawn on 1/2 acre using creeping red fescue and fine fescue would require 109.2 pounds of seed. Kentucky bluegrass would require 87.3 to 109.2 ponds of grass seed, and annual ryegrass and turf type fescue would require 218.4 pounds of grass seed.

    Warm Season Grass Seed

    • Bermuda grass would require 43.7 to 65.5 pounds of seed, and buffalo grass would require 21.8 to 65.5 pounds of seed.

    Specialty Grass Seed

    • Bahia grass seed required to start a new lawn requires 218.4 pounds for half an acre. Centipede grass requires 5.5 to 10.9 pounds of grass seed. Dichondra grass would require 43.7 pounds of grass seed, and St. Augustine grass would require 109.2 pounds of seed.