If you're going to slit-seed in spring, do so when the soil temperature reaches 55°F to 65°F. Slit-seeding has a higher germination rate than overseeding Reserve slit-seeding for lawns in rough shape.
Increase seed germination and grass establishment with this effective technique. Slit-seeding is a highly effective technique for renovating old, thin lawns and repairing dry patches and bare spots.