Sloping lawns can present a challenge for landscaping, mowing, and keeping soil healthy and in place. Soil and water runoff from bordering slopes in a lawn can be starting points for mudslides and messy flooding. There definitely exists a need for growth on a slope, if only to prevent erosion, but what are the best choices, and how should the decision be made of what to plant?
A question to ask is how much sunshine the area will be receiving on a daily basis. Often times, homeowners plant according to their taste without keeping in mind what is practical growth provided given conditions. Depending on its daily allowance of sun, your embankment could benefit greatly from plantings of native wild grasses. Because these grasses are indigenous to your area, they will undoubtedly grow and thrive once they have gotten an adequate chance to take root. To give your sloped plantings the best chance possible to flourish, avoid planting them into the bare soil alone. If grass already exists on your slope, it can helpful to kill it, and plant your wild grasses and native plants into it.
This gives the root systems an excellent chance to develop while making sure to avoid erosion during the formative stages of your new plantings' development. Low growing groundcover such as juniper and thyme do extremely well in sun-drenched areas while providing excellent stability for sloping soil. A plant such as periwinkle flourishes in both full sun and full shade, so it is an excellent choice for planting; be careful, however, because flourishing periwinkle spreads in no time and can crowd your other plantings! Sufficient water is necessary to get this new growth off and running, so be sure you have adequate length of garden hose to extend from your hose reel in order to reach this slope; your daily diligent watering sessions will help ensure those burgeoning root systems take hold and prosper.
If finances allow, a terraced effect helps broaden your choices as far as what groundcover you choose to use. Some of the more attractive (relatively speaking, of course) plants and grasses need more gently sloping or flatter areas to really prosper. Terracing your sloped lawn can be quite expensive, so it is not always an option for all homeowners, but its advantages are great including the ability to better use your sloped lawn for entertaining and general enjoyment.
By weighing your options and making informed choices, you can ensure your lawn remains its most beautiful while maintaining excellent soil that eludes erosion, retains rich nutrients, and provides a perfect spot for growing your favorite grasses and plants.