Here are our favorite native plants for vegetating a shady slope: Soil Requirements: mesic to dry soil with good calcium availability, Slope Attributes: deer resistant, quick germination, winter presence, Soil Requirements: moist to dry soil with good calcium availability, Slope Attributes: spreads by rhizomes, deer resistant, winter presence, Soil Requirements: mesic to dry, not acidic, Note: for the Piedmont and Mountain ecoregions. Leaves shed by trees accumulate on the forest floor and intercept any raindrops that make it through the canopy. Juniperus spp. The amount of seed of each species in the mix has been calculated using the number of seeds per pound of each species factored by establishment parameters. Measures included a vegetated geogrid, live stakes, fascines, and container-grown planting. The use of erosion control fabrics is a key element in stabilizing shorelines. Deciduous. Above the shoreline on the pond bank, native plants provide more stabilization and Gillian Plummer / Getty Images. Your local native plant vendor can recommend even more great native plants to help you with your slope planting project! Gardening on steep slopes can be challenging, but locally native evergreen foundation plants, properly irrigated, can create a garden that provides erosion control and year round beauty. add plant: Shrub: tall Oregon grape: Mahonia aquifolium: sun - shade: dry - wet: 8: H: H: add plant: Shrub: red-flowering currant: Ribes sanguineum: sun - part shade: dry - moist: 6: H: M: add plant: Shrub: thimbleberry: Rubus parviflorus: sun - shade: dry - moist: 8: M: M: add plant: Groundcover: yarrow: Achillea millefolium: sun - part shade: dry - moist: 0: H: H: add plant: Groundcover: kinnikinnik; bearberry The flat area also makes it easier to add a 5-10cm layer of mulch, which will to conserve precious moisture. Do your homework – assess the planting site and your wish list for plant character such as flowers, foliage height, color or texture; set your budget; develop a planting plan and choose a reliable plant vendor. ROCKROSE. Trees and Shrubs for the Midwest and Northeast include sycamore, dogwoods, winterberry, and buttonbush. Grows 1-2’. Erosion studies have consistently shown that slopes that were seeded with grass have GREATER ... Mulch. If you live in Maryland's mountain counties, your vendor will also need to know your slope's … Above the shoreline on the pond bank, native plants provide more stabilization and ... Riprap is a slope stabilization method that uses rocks to anchor soil in place. The flat area also makes it easier to add a 5-10cm layer of mulch, which will to conserve precious moisture. Juniper was widely used as a ground cover in the 70’s and 80s. Plants for Steep Slopes. consider in slope stabilization. Thorn-free shrubs always make maintenance a little easier. Pins should be placed a minimum rate of 3 pins per square metre in optimal conditions. For example, firm plant placement in the ground helps slow water flow since the stems act as thick barriers. Why use native plants for erosion control? Garden Erosion Control Plants for Slopes and Banks – Sweet White Violet (image – Arthur Haines New England Wild Flower Society) Sweet White Violet are also known as Viola blanda. The best performing, Australian native rain garden plant Size 1.5-1.8m high x 1.2-1.5m wide Some typical slope features that lend themselves to slope stabilization using vegetation and bioengineering are illustrated below: Unstable slope characteristics Unstable slopes represent extreme situations for most plants. Riprap, seawalls, and other "hard-armor" techniques are commonly used, but often overused. If temporary erosion control is needed until these plants establish, an organic mesh is often used. Andropogon virginicus. Creeping Raspberry. Soil Stabilizing Plants. Property owners and contractors guide to re-vegetation of coastal bluffs for stabilization of slopes. I avoid plants with excessive pest or disease problems and that stray too far from their original planting site. Hypericum Calycinum St. John's Wort. CEDD Landscape Guidance Note No. Sunny sites are brutal during hot, dry summer weather. On aggressive slopes we recommend using an erosion fabric along with any of these grasses, especially on sandy soils. However, replacing established turf is no small feat. A mixed planting of native grasses, herbaceous and woody ground covers, shrubs and trees, if space allows, is the best strategy for slope stabilization. And no mowing is required! All are native, and most are good for moist, shaded conditions, which are often the conditions found in eroding yards. Indiana Yard and Garden – Purdue Consumer Horticulture -, Indiana Yard and Garden – Purdue Consumer Horticulture, Department of Horticulture & Landscape Architecture, Horticulture & Landscape Architecture, 625 Agriculture Mall, West Lafayette, IN 47907, An equal access/equal opportunity university. Shrubs spicebush western redbud, mountain mahogany, western elderberry, and mock orange. As the matting decays, stem-rooting plants should root-in to provide good consolidation. Plant native grasses to hold the soil in. REQUEST A COPY ACCESSIBILITY The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. Forsythia. root architecture and suitable plant species are indeed important for soil reinforcement, slope protection and sustainability (Zuazo & Pleguezuelo 2009). Availability: Seed Ships in 2-5 days. and cultivars (DT) TWIG DOGWOOD. Red flowering currant, serviceberry, Indian plum and native roses are slope-stabilization … Soil Stabilizing Plants. Plants denoted with (S) perform best in shade. A more modern and ecologically sound approach is to use native plants that have some of these attributes. Planting grass on a slope does not stop erosion. Native plant with fragrant white flowers on single stalks. So choose plants that tolerate dry weather for the top 2/3rd and plants that will survive damp soil for the bottom third. Be wary of most wildflower mixes. Cotoneaster horizontalis (zones 5 to 7) is another choice from the shrub world that is among the best plants for erosion control.You'll like its horizontal plant form if you're looking for a selection that doesn't get too tall (3 feet) but that spreads and puts out big, tough roots that will stabilize the ground on a slope. Native Plant Society is an all volunteer, member based, non-profit organization. Planting seeds will generally be less expensive than started plants, but plants often will establish cover more quickly than seed. Vegetation Plays a large Role in Stabilising Slopes and Banks. They will want to know the specifics of your site, such as soil texture, pH, and moisture. They will want to know the specifics of your site, such as soil texture, pH, and moisture. Read on for some ideas on choosing plants for sloping areas and how to maximize this difficult planting terrain. In areas of unstable soil, steeper slopes or higher water runoff, a greater number of pins may be required. You may also want to check out our list for sunny slopes. Plant creeping phlox on sunny slopes for erosion control with a pop of spring color. Foliage has deep green, heart shaped leaves. For more plant choices check out my Plant Selection Guides. Slope Stabilization, Westmark Condominiums, Olympia, WA, 1999. on Native Plants Growing Native Hawaiian Plants by Heidi Bornhorst A Native Hawaiian Garden by John L. Culliney and Bruce P Koebele plants to control stream bank erosion Is there an erosion problem along your section of the stream? A mix of ground covers, perennials, shrubs, and trees is ideal. Cistus spp. Below are 11 best plants for covering slopes and hillside areas and to create beauty and stabilty. Just remember that young plants will need additional moisture, staking and training as they establish. Erosion is a serious problem for gardeners with sloped yards. Back then it was considered one of the preferred plants for erosion control on slopes in sunny locations. Native Slope Stabilization: Item Id: NSS: Review this item: Your Price: Select Coverage Area. Soil Requirements: Requires good calcium availability. Grows 1-2’. and cultivars (DT) TWINBERRY. Bear these factors in mind when planting on a slope Slopes are usually very dry at the top when it hasn't rained and very wet, even swampy toward the bottom of the slope when it does rain. Correa pulchella ‘Pink Eyre,’ a native evergreen shrub, is one such plant. A filter blanket (see below) covers the bare soil, and rocks hold down the blanket. The Pennsylvania Native Plant Society holds an annual native plant festival and sale and features other native plant sale events across the state on its website. Planting on steep slopes may be regulated, so check with your local government. Best Erosion Control Ground Cover For Sunny Sites In Georgia. Soil Requirements: moist to dry, poor soils. Slope Attributes: This shrub naturally grows on steep slopes and cliffs. Slope attributes: deer resistant, winter presence. depressions as the water flows down the pond bank slope. It is an ideal plant for erosion control and slope stabilization given its resilient, drought-tolerant reputation and ability to grow in poor, compacted soils. Lonicera involucrata (S, N) PACIFIC WAX MYRTLE. Slice small slits running across the face of the slope of approximately 150 mm into the matting where plants will be placed. PLANTS, STORMWATER, EROSION & SLOPE STABILITY role & benefits of native vegetation www.greenbeltconsulting.com Elliott Menashe Greenbelt Consulting & management tips for folks living on the edge SHORELINES ARE TEMPORARY PLACES poor management practices can make them even MORE temporary The roots can help to hold the soils together, the branches and leaves can be a barrier against surface erosion, and moisture levels in the soil can be regulated by the demands for water by the plants. Tree roots stretch out in all directions, holding soil in place. Temporary living mulch such as annual rye or wheat can be used to provide quick cover of the ground but will then die back as the permanent plantings get established. Your local native plant vendor can recommend even more great native plants to help you with your slope planting project! On aggressive slopes we recommend using an erosion fabric along with any of these grasses, especially on sandy soils. In addition to appropriate plant selection, nonplant features such as terracing, boulders and retaining walls may be options to consider. Slope Attributes: spreading, winter presence, Soil Requirements: wet or moist soil like that found at the bottom of many slopes, Slope Attributes: deer resistant, winter presence, Soil Requirements: moist if well-drained, to dry, Slope Attributes: more deer resistant than most other shrubs, winter presence. Bright yellow flowers appear in spring and early summer when planted in full sun. Plus, trees and shrubs on steep hillsides can help keep slopes from sliding. Apply mulch after planting. If the slope is not vegetated, grading may be needed to establish a stable slope. Soil Erosion Control Plant List. Dig the hole three times as wide as the plants root ball and plant so that the roots and trunk are vertical. Which means native plants that are fast-growing, strong and adaptable, with resilient roots. See information on wattles and live stakes. If you live in Maryland's mountain counties, your vendor will also need to know your slope's aspect and soil depth. Perhaps the most challenging landscaping problem is that of what to plant on a steep slope. The California lilac can grow up to 8-feet tall. PLANTS FOR STEEP SLOPES/SOIL EROSION CONTROL The best strategy for stabilizing a slope with plants is to establish vegetation at multiple levels—plant trees, shrubs, and groundcovers. Bougainvillea (Bougainvillea spectabilis) – Flowering Slope-Friendly Shrub (gioiak2/123rf.com) While we all think of bougainvillea as a climbing flower, there are shrub species that make a good ground cover plant for a sloping yard. Below are 11 best plants for covering slopes and hillside areas and to create beauty and stabilty. Soils that have instability problems are not usually soils at all, but only incipient soils. Availability: Seed Ships in 2-5 days. Mix 199 (STEEP SLOPE STABILIZATION MIX) is designed for the environmental conditions of the all Regions. Some native plants perform well in these environments. This shows how important evergreen strappy leaf plants and bigger New Zealand native grasses are for surface erosion control. Designed and installed bioengineering measures to stabilize two failed slopes, and revegetated a drainage pipeline trench with native plants. Fragrant Sumac. Plants often bind soil together with their root systems, which means they’re able to serve as a protective layer that can help prevent soil erosion in several ways. Introduction Bioengineering or Naturalistic Engineering is a discipline that uses living plants for erosion control and soil stabilization measures, generally in combination with other stabilization works such as timber piles, earth structures [1] etc. You can get more information about preventing soil erosion from your local Soil & Water Conservation District. Central Maryland Planting. The main purpose is Seeds will need to be planted in cleared ground or within openings in killed turf. REC, Lower Eastern Shore The following plants are recommended for erosion control. Plant creeping phlox on sunny slopes for erosion control with a pop of spring color. To keep maintenance down, choose plants that produce very little mess which would otherwise require extra work to clean up annually. California Lilac. The plan below frames the existing view, and adds a beautiful landscape to help hold the slope and attract wildlife. Plants are a natural way to stabilise slopes and reduce or eliminate erosion. Plants that leaf out early and hold their leaves until late fall, however, rise to the top of the heap. Few contain seeds of plants actually native to the Northwest and most include some that are considered noxious weeds! This ornamental shrub has pink, purple, orange, yellow, and white flowers from spring through fall. If you live in Maryland's mountain counties, your vendor will also need to know your slope… Herbaceous Ground Covers: Ajuga Barren strawberry ( Waldsteinia) Bearberry Catmint Christmas fern (S) Daylily Heuchera Hosta (S) Lady fern (S) Lamium Phlox Sedum Solomon’s seal … Partridge Pea. New Zealand Native Plants for Erosion Control ET:LM:NT1:November 2004 Introduction This Environment Topic provides information about the types of native trees, shrubs and grasses you can successfully to plant in an eroding area. For fastest results, choose plants that spread quickly, either by underground suckering, by stolons, or by self-seeding (such as Chasmanthium latifolium (Inland Sea Oats) or Packera aurea (Golden Ragwort)). In areas of unstable soil, steeper slopes or higher water runoff, a greater number of pins may be required. When these start to establish, plant shrubs and trees. They will want to know the specifics of your site, such as soil texture, pH, and moisture. Using Pioneer Plants for Slopes on Native Plants Growing Native Hawaiian Plants by Heidi Bornhorst A Native Hawaiian Garden by John L. Culliney and Bruce P Koebele plants to control stream bank erosion Is there an erosion problem along your section of the stream? Protecting a shady slope is different than protecting a sunny slope. Slopes require plants that can establish quickly, tolerant of fluctuating soil moisture and potentially poor nutrient availability, and require little care once established. Consider placing compost mats over the topsoil after planting your new shrubs to slow erosion, help the plants get a head start on strong root growth, and prevent weeds. The tree canopy intercepts raindrops, and that's a big head start on preventing erosion. To determine the plant species, It will be difficult to establish vegetation on slopes steeper than 2:1 (horizontal:vertical). Best Erosion Control Ground Cover For Sunny Sites In Georgia. "If you have madrones, sword ferns and Douglas fir, do what you can to keep them; if you don't, then plant them," he says. GRASS. Erosion control shrubs are no more difficult to maintain than other native plants. Choosing plants for slopes . There are several options for stabilizing the slope toe. Dry lovers rule. A multi-level canopy will do the best job of intercepting and slowing precipitation before it hits the ground, thus reducing surface erosion. Grows in zones 3 to 8. The good news is that once you know which plants grow on slopes, you can use this knowledge to your benefit to plan a garden that both thrives and helps stabilize the hillside. The following plants are recommended for erosion control. Planting. Loose or heavily sloped soil is a landscaping hazard, but a range of native and non-native plant species can be used in an effort to stabilize and beautify soil. The turf could be killed but left in place to stabilize the slope while the new replacement plants establish. Some native species that are good for slopes include eriogonum (California buckwheat), arctostaphylos (manzanita), rhamnus (coffeeberry), ceanothus (California lilac), and baccharis pilularis (coyote brush). The dead turf could be cut away to install the new plants. Plants help protect against erosion in several ways. Pennsylvania Native Plant Nurseries. In addition to site conditions such as sun exposure, soil condition, soil moisture, existing cover and degree of slope, plant selection will largely depend on size of area to be planted and, of course, your budget. Flowering period and flower colors are coordinated for full season variety. Native Plants for Steep Slopes and Erosion Control By gripping the soil with their more extensive roots, certain native plants can do a better job at erosion control than turf grass, especially in shade areas where grass grows poorly. Broomsedge. Plant drought tolerant low plants. © 2020 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by Indiana Yard and Garden – Purdue Consumer Horticulture. Plants selected for erosion control should have deep spreading root systems. In the forest, even soil that seems devoid of vegetation is likely to be full of tree roots. New York fern, Thelypteris noveboracensis. Common Milkweed. Choosing plants for slopes . All of these prefer well-draining soils and are tolerant of drier conditions once established. Bright yellow flowers appear in spring and early summer when planted in full sun. Turf grass is one of the most popular ground covers for keeping soil in place, but mowing on an incline is inconvenient at best and possibly downright dangerous! Whenever possible, choose native plants suited for the type of soil and growing conditions on your slope to assure healthy plants and a vigorous root system. New York fern, Thelypteris noveboracensis. Some nurseries feature blends for slope stabilization. Designed and installed bioengineering measures to stabilize two failed slopes, and revegetated a drainage pipeline trench with native plants. Pins should be placed a minimum rate of 3 pins per square metre in optimal conditions. A multi-level canopy will do the best job of intercepting and slowing precipitation before it hits the ground, thus reducing surface erosion. Don't think that you are limited to ground covers (perennials and short shrubs that grow … Plant through the matting. It will grow almost as wide as tall, so … Four great evergreen choices for a sunny area are Myoporum parvifolium, Rosmarinus officinalis "prostratus," Lippia repens, and Baccharis pilularis. In most cases, planting native plants by hand does not require a permit. After the terrible Oso landslide tragedy, we received several calls at Woodbrook Native Plant Nursery from people wanting advice on what to plant on their hillsides. For a dry slope that's difficult to water choose plants that cope in dry conditions. The Pa. More economical and ecologically friendly methods can be used. All are native, and most are good for moist, shaded conditions, which are often the conditions found in eroding yards. See the "Starter Lists" in the Native Plant Encyclopedia. Some perennial plants such as fireweed, asters, goldenrod, tufted hairgrass and yarrow could be direct sown. 1. Add shadecloth or treeguards if possible to shade new tubestock from searing sun. Hypericum can reach 1 to 2 feet in height. Erosion Control Methods Grasses and Grass-like Plants Turf grass is the least effective type of grass for stabilizing a pond bank slope. Your local native plant vendor can recommend even more great native plants to help you with your slope planting project! Creeping Raspberry. Choose locally native, evergreen plants Evergreen plants provide a foundation for your design that looks good all year. 1/2006) CEDD has been implementing soil erosion control planting programme in the urban fringe of new towns and new development areas. Matting where plants will be difficult to water choose plants that have instability problems are usually. 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S ) perform best in shade in full sun re-vegetation of coastal bluffs for Stabilization slopes... Several options for stabilizing a slope does not stop erosion area are Myoporum parvifolium, native plants for slope stabilization officinalis ``,... Placement in the 70 ’ S environment away to install the new replacement plants establish established is! To consider native plants for slope stabilization erosion tackle challenging slopes challenging slopes forest floor and intercept any that! Slope Attributes: this shrub naturally grows on steep slopes with any of these Attributes plant with fragrant white on... A vegetated geogrid, live stakes, fascines, and buttonbush another option Westmark Condominiums, Olympia, WA 1999! Ecology is to protect, preserve, and rocks hold down the blanket are often the conditions found eroding! Strengthened the soil by 50 % soil & water Conservation District slopes in sunny locations than plants! On steep hillsides can help keep slopes from sliding native to the top 2/3rd and plants that cope dry. Appear in spring and early summer when planted in full sun `` prostratus, '' repens.