How to grass seed a slope

Written by anthony smith
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The undulations of grass hills and slopes are very attractive to the eye, and they also have the added benefit of helping to control erosion. A slope however, presents some special problems when it comes to seeding it for a grass lawn. You will need to keep the seed in place and prevent it from getting washed away by watering, wind and rain storms.

Skill level:

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Things you need

  • Rototiller
  • Lawn starter fertiliser
  • Rake
  • Grass seed
  • Broadcast spreader
  • Roll-out straw mats
  • Landscaping stakes
  • Small sledgehammer

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  1. 1

    Loosen any compacted soil on the slope on which you wish to plant. This will be necessary to help the seed "stick" and not get washed away. Do this with a power rototiller if the slope is gentle enough, or with a pick and shovel and a lot of elbow grease if the slope is too steep.

  2. 2

    Apply a lawn starter fertiliser to the soil and mix it in thoroughly with the rototiller. Smooth out the surface of the soil with a rake, and apply a liberal amount of water to it.

  3. 3

    Spread the grass seed using a broadcast spreader. Consult with a professional at the nursery on the rate at which to spread the kind of seed you purchased.

  4. 4

    Apply water to the seed and soil with a fine mist so that you don't wash away any of the seed.

  5. 5

    Roll out the straw mats to cover the seeded area completely. Stake them down as needed using landscaping stakes driven in with a sledgehammer. You can now apply water as you normally would to any lawn without fear of losing your seed.

  6. 6

    Keep the mats moist for 2 weeks, watering once daily after that for another 2 weeks. Check the grass seedlings, and once they are 2 inches tall, you can remove the straw mats.

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