to test the pH level of the soil. Do-it-yourself soil kits are sold at garden shops and hardware stores for less than $15, or for about $10 more you can contact your local extension service for a mail-in kit that takes about two weeks for results.
2. SAND
to mix with existing soil; about 3 cubic yards covers 1,000 square feet
3. COMPOST
to condition soil before seeding; you’ll need 3 cubic yards per 1,000 square feet
4. PULVERIZED LIME, peat moss, or sulfur
to correct the pH of soil; you’ll need lime if your soil is acidic, peat moss if it’s slightly alkaline, and sulfur if it’s very alkaline.
5. STARTER FERTILIZER
use a 12-25-12 mix; the numbers refer to the ratio of nitrogen to phosphorus to potassium. You’ll need about 5 pounds per 1,000 square feet.