Plants for Slopes

Description

Slopes and banks of various sizes are quite common in both residential gardens and commercial landscapes throughout the Inland Empire. Interest in water conserving landscape is bringing attention to the strategy of planting a diversity of trees and spreading shrubs with organic mulch topdressing. This approach to slope planting can be highly attractive while controlling soil erosion, reducing water needs and limiting overall maintenance needs.

The key to success involves planting small size plants in large planting pits with watering basins, drip irrigation systems and a generous mulch layer over exposed soil. Smaller plants will establish stronger root systems and grow faster; watering basins will capture rainfall for infiltration; and mulch will cover the irrigation lines, reduce weed growth and cover the soil until the plants fill out.

Plant List

Trees

Acacia baileyana + cv

Common Name: Cootamundra wattle
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun
Height: 20 ft. - 30 ft. Width: 20 ft. - 30 ft.

Arbutus unedo

Common Name: Strawberry tree
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun, Partial sun
Height: 15 ft. - 30 ft. Width: 15 ft. - 30 ft.

Caesalpinia cacalaco

Common Name: Cascalote
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun
Height: 15 ft. - 20 ft. Width: 15 ft. - 20 ft.

Callistemon citrinus

Common Name: Lemon bottlebrush
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun
Height: 15 ft. - 25 ft. Width: 15 ft. - 20 ft.

Olea europaea + cvs

Common Name: Mediterranean olive
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun
Height: 25 ft. - 35 ft. Width: 20 ft. - 30 ft.

Quercus agrifolia

Common Name: Coast live oak
Plant Type: Tree, Native
Water Needs: Low 1
Exposure: All day sun
Height: 30 ft. - 60 ft. Width: 40 ft. - 70 ft.

Quercus ilex

Common Name: Holly oak, Holm oak
Plant Type: Tree
Water Needs: Low 2
Exposure: All day sun
Height: 30 ft. - 60 ft. Width: 30 ft. - 60 ft.

Schinus molle

Common Name: California pepper tree
Plant Type: Tree
Water Needs: Low 1
Exposure: All day sun
Height: 35 ft. - 45 ft. Width: 50 ft. - 75 ft.

Shrubs

Arctostaphylos ‘Howard McMinn’

Common Name: McMinn manzanita
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Morning sun, All day sun
Height: 6 ft. - 8 ft. Width: 6 ft. - 8 ft.

Arctostaphylos ‘Sunset’

Common Name: Sunset manzanita
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Morning sun, All day sun, Partial sun
Height: 5 ft. - 7 ft. Width: 5 ft. - 7 ft.

Artemisia californica ‘Montara’

Common Name: Montara sagebrush
Plant Type: Shrub, Ground cover, Native
Water Needs: Low 1
Exposure: All day sun
Height: 12 in. - 24 in. Width: 3 ft. - 5 ft.

Baccharis pilularis

Common Name: Coyote brush
Plant Type: Shrub, Native
Water Needs: Moderate 3
Exposure: Morning sun, All day sun
Height: 3 ft. - 12 ft. Width: 6 ft. - 12 ft.

Callistemon ‘Little John’

Common Name: Dwarf bottlebrush
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 4 ft. - 5 ft. Width: 10 ft.

Ceanothus ‘Concha’

Common Name: Concha wild lilac
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Morning sun, All day sun
Height: 6 ft. - 9 ft. Width: 6 ft. - 10 ft.

Ceanothus ‘Joyce Coulter’

Common Name: Creeping mountain lilac
Plant Type: Shrub, Ground cover, Native
Water Needs: Low 2
Exposure: All day sun, Partial sun
Height: 3 ft. - 5 ft. Width: 10 ft. - 12 ft.

Cercocarpus betuloides

Common Name: Western mountain mahogany
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 10 ft. - 15 ft. Width: 10 ft. - 15 ft.

Cistus x pulverulentus ‘Sunset’

Common Name: Sunset rockrose
Plant Type: Shrub, Ground cover
Water Needs: Low 2
Exposure: All day sun
Height: 12 in. - 18 in. Width: 3 ft. - 6 ft.

Cistus x purpureus

Common Name: Orchid rockrose
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 3 ft. - 4 ft. Width: 5 ft. - 8 ft.

Dalea greggii

Common Name: Trailing indigo bush
Plant Type: Shrub, Ground cover
Water Needs: Low 2
Exposure: All day sun
Height: 12 in. - 18 in. Width: 5 ft. - 10 ft.

Dodonaea viscosa ‘Purpurea’

Common Name: Purple hopseed bush
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 12 ft. - 18 ft. Width: 6 ft. - 12 ft.

Echium candicans + cv

Common Name: Pride of Madeira
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 6 ft. - 8 ft. Width: 8 ft. - 10 ft.

Encelia californica + cvs

Common Name: California bush sunflower
Plant Type: Shrub, Native
Water Needs: Low 2
Exposure: All day sun
Height: 3 ft. - 5 ft. Width: 3 ft. - 5 ft.

Encelia farinosa

Common Name: Incienso, Brittlebush
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 3 ft. - 5 ft. Width: 3 ft. - 5 ft.

Eriogonum arborescens

Common Name: Santa Cruz Island buckwheat
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 4 ft. - 5 ft. Width: 5 ft. - 6 ft.

Eriogonum cinereum

Common Name: Ashyleaf buckwheat
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 4 ft. - 5 ft. Width: 4 ft. - 6 ft.

Eriogonum fasciculatum

Common Name: Common buckwheat
Plant Type: Shrub, Ground cover, Native
Water Needs: Low 1
Exposure: All day sun
Height: 2 ft. - 3 ft. Width: 2 ft. - 3 ft.

Eriogonum giganteum

Common Name: St. Catherine's lace
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 8 ft. - 10 ft. Width: 8 ft. - 10 ft.

Eriogonum parvifolium

Common Name: Cliff buckwheat
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 2 ft. Width: 3 ft.

Galvezia speciosa + cv

Common Name: Island snapdragon
Plant Type: Shrub, Native
Water Needs: Low 2
Exposure: Morning sun, All day sun, Partial sun
Height: 3 ft. - 4 ft. Width: 8 ft. - 10 ft.

Grevillea ‘Moonlight’

Common Name: Moonlight grevillea
Plant Type: Shrub
Water Needs: Moderate 3
Exposure: All day sun, Partial sun
Height: 5 ft. - 6 ft. Width: 6 ft. - 7 ft.

Grevillea ‘Noellii’

Common Name: Noell's Grevillea
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 3 ft. - 4 ft. Width: 4 ft. - 5 ft.

Heteromeles arbutifolia

Common Name: Toyon
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Morning sun, All day sun, Partial sun
Height: 12 ft. - 25 ft. Width: 12 ft. - 18 ft.

Lantana camara + cvs

Common Name: Lantana
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 4 ft. - 6 ft. Width: 6 ft. - 8 ft.

Lantana montevidensis

Common Name: Trailing lantana
Plant Type: Shrub, Ground cover
Water Needs: Low 2
Exposure: All day sun
Height: 12 in. - 18 in. Width: 5 ft. - 10 ft.

Lantana x ‘New Gold’

Common Name: New Gold lantana
Plant Type: Shrub, Ground cover
Water Needs: Low 2
Exposure: All day sun
Height: 2 ft. Width: 6 ft.

Plumbago auriculata

Common Name: Cape plumbago
Plant Type: Shrub
Water Needs: Moderate 4
Exposure: Morning sun, All day sun
Height: 6 ft. - 8 ft. Width: 8 ft. - 12 ft.

Prunus ilicifolia ssp. ilicifolia

Common Name: Hollyleaf cherry
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Moderate shade, All day sun, Partial sun
Height: 15 ft. - 30 ft. Width: 15 ft. - 30 ft.

Rhamnus californica + cvs

Common Name: Coffeeberry
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: Morning sun, All day sun, Partial sun
Height: 8 ft. - 10 ft. Width: 8 ft. - 10 ft.

Rhus integrifolia

Common Name: Lemonade berry
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 25 ft. Width: 25 ft.

Rhus ovata

Common Name: Sugar bush
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 8 ft. - 35 ft. Width: 20 ft. - 25 ft.

Rosa floribunda ‘Floral Carpet’

Common Name: Floral Carpet rose
Plant Type: Shrub, Ground cover
Water Needs: Moderate 4
Exposure: All day sun
Height: 2 ft. Width: 4 ft. - 5 ft.

Rosmarinus officinalis + cvs

Common Name: Rosemary
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 4 ft. - 7 ft. Width: 10 ft. - 12 ft.

Salvia ‘Allen Chickering’

Common Name: Allen Chickering sage
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 3 ft. - 4 ft. Width: 3 ft. - 4 ft.

Salvia apiana

Common Name: White sage
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 3 ft. - 4 ft. Width: 4 ft. - 5 ft.

Salvia clevelandii ‘Winifred Gilman’

Common Name: Winifred Gilman sage
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 3 ft. - 5 ft. Width: 3 ft. - 5 ft.

Salvia greggii + cvs

Common Name: Autumn sage
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 2 ft. - 4 ft. Width: 3 ft. - 4 ft.

Senna artemisioides

Common Name: Feathery cassia
Plant Type: Shrub
Water Needs: Low 1
Exposure: All day sun
Height: 3 ft. - 6 ft. Width: 3 ft. - 6 ft.

Senna phyllodinea

Common Name: Silvery cassia
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 3 ft. - 5 ft. Width: 4 ft. - 6 ft.

Simmondsia chinensis

Common Name: Jojoba, Goatnut
Plant Type: Shrub, Native
Water Needs: Low 1
Exposure: All day sun
Height: 8 ft. - 10 ft. Width: 10 ft. - 12 ft.

Westringia fruticosa

Common Name: Coast rosemary
Plant Type: Shrub
Water Needs: Low 2
Exposure: All day sun
Height: 4 ft. - 6 ft. Width: 5 ft. - 8 ft.

Trees

Shrubs

Ground Covers

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