California Native Plants for Slopes
In southern California, it seems, the majority of homeowners, landscapers and gardeners have some sort of slope to deal with. In most cases graded slopes are extremely difficult to plant, often with poor, compacted soil and steep grades. There are several variables to consider when choosing plant material for a slope: the location and microclimate involved (inland, coastal, high winds, extreme temperature…), the direction or exposure of the slope, erosion factors, soil type and the stability of the slope and soil conditions.
Suitable low water and low maintenance choices for a slope, to replace traditional generally sterile plantings of ivy and ice plant, include an assortment of regionally appropriate grasses, ground covers, shrubs and trees. These plants are naturally adapted to our environment and require fewer resources and less labor to care for them. By using a variety of plants on your slope, you can achieve a refreshing, diverse and visually stimulating slope landscape. Proper spacing and plant selection will cut down on pruning maintenance and competition for moisture. The diversity in the landscape will bring back the pollinators, butterflies, hummingbirds and songbirds. For more information on slope planting, watering and other slope questions please call us or stop in at our retail store, Casa la Paz.
Slope Staples
Large and Medium Shrubs
Sunny and Hot
Botanical Name | Common Name | Type/Shape |
Baccharis species | Coyote bush | Large shrubs |
Ceanothus species | California lilac | Large shrubs |
Cercocarpus species | Mountain mahogany | Tree |
Heteromeles arbutifolia | Toyon | Large shrub |
Sambucus nigra ssp. caerulea | Elderberry | Small tree/ large shrub |
Rhus ovata | Sugarbush | Large shrub |
Sunny and Cooler
Arctostaphylos species and varieties | Manzanita | Tree, shrub and groundcover options |
Artemisia californica | Coastal sagebrush | Medium shrub |
Atriplex lentiformis | Coastal quail bush | Medium shrub |
Rhus integrifolia | Lemonade berry | Large shrub |
Partial Shade
Rhamnus species | Coffeeberry | Medium shrub |
Grasses
Aristida purpurea | Purple three-awn | Fountain shape |
Leymus species | Wild rye | Large fountain |
Muhlenbergia rigens | Deer grass | Medium fountain |
Stipa species | Needlegrass | Fountain & mounding |
Small Shrubs and Ground Covers
Sunny and Hot
Baccharis ‘Pigeon Point’ | Prostrate coyote bush | Groundcover |
Ceanothus species and varieties | California lilac | Groundcover to upright forms |
Peritoma arborea | Bladderpod | Medium shrub |
Encelia farinosa | Brittlebush | Small shrub |
Eriogonum species | Buckwheat | Small shrub |
Salvia species and varieties | Sage | Small to medium shrubs |
Hesperoyucca whipplei | Chaparral yucca | Large succulent |
Sunny and Cooler
Arctostaphylos species and varieties | Manzanita | Many forms |
Encelia californica | Coast sunflower | Medium shrub |
Iva hayesiana | San Diego marsh elder | Groundcover |
Corethrogyne “Silver Carpet’ | Silver carpet aster | Groundcover |
Partial Shade
Ribes viburnifolium | Evergreen currant | Groundcover |
Salvia ‘Tera Seca’ | Tera seca sage | Groundcover |
Symphoricarpos mollis | Creeping snowberry | Groundcover |
*In most cases “Sunny and Hot” plants would work for “Sunny and Cool” locations as well.