How to Grow Grass on a Slope

Test the suitability of your soil by digging down a couple of feet into the ground with a spade. If you hit a solid rock layer, then your soil and grass may just wash away. The same applies to the steepness of the bank. If your slope is too steep to push a wheelbarrow up, then it may be too steep to hold grass for long periods of time.

Remove all rocks, weeds, roots and debris from the area you want to plant on. Use a rake to spread out the soil. Apply aged farmyard manure or compost over the area. Cover the area in a six-inch layer of topsoil.

Sprinkle grass seeds all over the lawn area. Use species that fix the soil, such as bahiagrass or Bermuda, according to the Seedland website. In areas of the lawn prone to shadow or poor light, add more seed.

Purchase an erosion mat from a garden store. Choose straw matting or ask for straw mulch covering. Buy enough matting to cover your lawn area. Secure this to the soil over the seeded area using garden staples.

Water the lawn area with a sprinkler or watering can. Do not add too much water in one session or you might wash some of the soil and seed away, according to Colorado State University.