Overseeding an existing lawn can be accomplished by broadcast seeding or by slit-seeding. Broadcast seeding leaves the seed exposed on the lawn’s surface and depends on rain to finish the task of getting the seed in contact with the earth and completing germination. If the rain is delayed, a significant amount of the broadcast seed can be lost to birds who greatly enjoy the tasty banquet.
Slit-seeding generally takes less seed than broadcast seeding, because most of the seed gets into the soil, resulting in a higher germination rate and a better stand of grass. So just how does slit-seeding work?
Slit-seeders have vertical cutting blades that cut through the thatch layer and open up a slit or miniature furrow in the soil. The depth of the slit or miniature furrow is based on the type of grass seed used. A general rule of thumb is to go no deeper than half the length of the grass seed husk. The slit-seeding unit should have concave disk blades that follow in the slits and keep them open while the seed is dropped; it ensures the seed gets into the soil where it can germinate.
When it comes to overseeding your lawn, you can count on Wellman’s to provide the equipment and know-how to do the job right.
If you think your lawn could benefit from slit-seeding, please contact us and we’ll be happy to provide a free estimate.