Home Garden

How to Use a Vertical Grass Seed Slicer

A vertical grass seed slicer or slit-seeder has upright blades spaced 2 inches apart. As you push the machine, it cuts furrows in the ground and drops grass seeds in them. In some models, an attached roller follows behind firming the soil. Since the blades are so far apart, this seeder isn't a good option for starting a new lawn -- you'd end up with a lot of bare space -- but they're good tools for overseeding a warm-season lawn with cool-weather grass in the winter.

Things You'll Need

  • Lawn mower
  • Instruction manual for vertical slicer
  • Grass seeds divided in half
Show More

Instructions

    • 1

      Mow your current lawn down to 1 inch in height in preparation of seeding with a vertical grass seed slicer.

    • 2

      Set your slicer blades to make 1/8-inch-deep furrows. Specific instructions vary according to the model, but look for an adjusting lever on one side of the machine. You'll see markings next to it, usually from 0 to 1 ¼, indicating depth in inches. Move that lever to set the depth of the blades.

    • 3

      Measure out the grass seeds and divide them in half. Adjust the slicer to half the seeding rate. Place half of the seeds in the machine's hopper, the container that holds and gradually releases the grass seeds as you push the slit-seeder. Sow the seeds while walking back and forth in the same direction.

    • 4

      Pour the second half of seeds into the hopper. Broadcast them perpendicularly to the direction you walked the first time. If, for instance, you first moved east to west, go southeast to northwest the second time around to reduce areas without any seeds.