Site Map  
This report lists plants by their water requirements.

Drought Tolerant = no supplemental water after establishment

Low = 2-3 times per summer

Occasional = every week or two

Moderate = 2-3 times weekly

Drought Tolerant
  
Acanthus mollis
Bear's Breech
Sn/Par-Shady

Remains evergreen in summer with irrigation.

  
Achillea spp.
Yarrow
Sun

Flowers in a wide range of colors.

  
Baccharis pilularis
Coyote Brush
Sun

Tough plant - withstands harsh conditions. Groundcovers and upright shrubs available.

  
Catalpa bignoides
Indian Bean
Sun

A tough, summer-flowering tree for difficult sites.

  
Ceanothus spp
California Lilac
Sn/Par-Shady

Needs good drainage. Huge variety within genus. Generally short-lived.

  
Ceratostigma spp
Plumbago
Sun

Clear blue flower in summer followed by red foliage in fall.

  
Cistus spp.
Rock rose
Sun

Needs good drainage.

  
Correa spp
Australian fuschia
Sn/Par-Shady

Yellow, pink, or orange winter flowers. May be hedged.

  
Crataegus phaenopyrum
Washington Thorn
Sun

Spring flowers, fall color, winter berries.

  
Dendromecon harfordii
Bush Poppy
Sun

Needs excellent drainage

  
Dietes
Fortnight lily
Sn/Par-Shady

Old stalks will re-flower.

  
Elaeagnus pungens
Silverberry
Sn/Par-Shady

Tough plant; withstands harsh conditions. Groundcovers and upright shrubs available.

  
Eriogonum fasciculatum
Buckwheat
Sun

Rugged; tolerates heat, wind, drought, salt spray.

  
Eryngium amethystinum
Sea Holly
Sun

Grown for dramatic foliage and showy bracts around flower heads.

  
Eschscholzia californica
California Poppy
Sun

Native has orange flowers. Cultivars available with pink, white, cream, salmon flowers.

  
Festuca Californica
Blue Fescue
Sn/Par-Shady

Good planted under native oaks

  
Gaillardia spp
Blanket Flower
Sun

Easy-care and long-flowering.

  
Helianthemum spp
Sun Rose
Sun

Brilliant flower display. Should be sheared afterwards to showcase evergreen foliage. Many different flower colors.

  
Heteromeles arbutifolia
Toyon
Sn/Par-Shady

Large shrub. Excellent fall/winter interest.

  
Juniperus spp
Juniper
Sn/Par-Shady

Huge variety, from groundcovers to large shrubs. Many landscape uses. Tolerant of many conditions and useful in hot, sunny sites.

  
Koelreuteria paniculata
Goldenrain Tree
Sun

Yellow flowers in summer followed by lantern-shaped seed capsules.

  
Leonotis leonurus
Lion's Tail
Sun

Cut back in winter to renew - may not survive particularly cold, wet winters.

  
Lepechinia spp
Pitcher Sage
Sn/Par-Shady

Remove stems in winter at ground level.

  
Mahonia spp
Mahonia, Oregon Grape
Sn/Par-Shady

Striking foliage, good flower display and showy berries. Part shade in hottest locations.

  
Monardella spp
Monardella
Sn/Par-Shady

Requires fast-draining soil; good in native or rock gardens.

  
Muhlenbergia
Muhly Grass
Sn/Par-Shady

Benefits from occasional summer irrigation

  
Muhlenbergia rigens
Deer Grass
Sun

Native; dramatic accent grass, cut back every few years to freshen

  
Nerium oleander
Oleander
Sun

All parts of plant toxic. Good hedge or screen. Tolerant of many conditions and useful in hot, sunny sites.

  
Origanum
Oregano
Sun

Cut back in winter to renew.

  
Perovskia atriplicifolia
Russian Sage
Sun

Cut back in early spring to renew.

  
Prunus spp.
Ornamental Laurel
Sn/Par-Shady

Good screen or hedge. Compact version available.

  
Quercus kelloggii
Black Oak
Sn/Par-Shady

Leaves emerge in beautiful pinkish hues in spring, mature bright green, and turn yellow-orange in fall.

  
Santolina chamaecyparissus
Lavender Cotton
Sn/Par-Shady

Fast growing but short-lived. Trim after flowering, cut back in spring.

  
Sidalcea spp
Checkerbloom
Sun

Pink flowers. Cut to ground and allow to go dormant in summer.

  
Sisyrinchium spp
Blue Eyed Grass/Yellow Eyed Grass
Sn/Par-Shady

Several cultivars available, some variegated.

  
Sphaeralcea spp
Globe Mallow
Sun

Cut to ground in early spring; little to no summer water only.

  
Westringia fruticosa
Coast Rosemary
Sun

White or pale blue flowers. Tolerates harsh conditions. Good drainage.

  
Yucca spp
Yucca
Sun

Some species form woody trunks.

  
Zauschneria spp (now Epilobium spp)
California Fuschia
Sun

Cut back after bloom to renew. Attractive to pollinators.

Low
  
Acca sellowiana
Pineapple Guava
Sun

Prune lower branches to train as small tree.

  
Agastache spp
Hyssop
Sn/Par-Shady

Cut to ground in late winter.

  
Artemisia spp
Artemisia
Sun

Evergreen.

  
Berberis spp
Barberry
Sn/Par-Shady

Some have berries in winter. Many attractive foliage colors such as lime and burgundy.

  
Cedrus spp or cv
Cedar
Sun

Cedars need plenty of space; weeping forms need training.

  
Cercis occidentalis
Western Redbud
Sn/Par-Shady

Can be grown as a large shrub or small tree.

  
Chitalpa tashkentensis
Chitalpa
Sun

Choose 'Pink Dawn' or white blooming 'Morning Cloud'

  
Cotinus coggygria
Smoke Bush
Sn/Par-Shady

Can be pruned to control size and shape. Excellent fall color.

  
Erigeron spp.
Seaside Daisy, Mexican Daisy
Sn/Par-Shady

Cut back in winter to renew; most flower year-round .

  
Euphorbia spp.
Spurge
Sn/Par-Shady

Some reseed but seedlings are easy to pull out. Huge size variation amongst species.

  
Gaura lindheimeri
Gaura
Sn/Par-Shady

Willowy stems hold pink or white flowers; reseeds easily.

  
Kniphofia spp
Red Hot Poker, Torch Lily
Sn/Par-Shady

Attractive to hummingbirds; groom in spring to maintain appearance.

  
Lagerstroemia indica
Crape Myrtle
Sun

Decorative bark, summer flowers, and striking fall color.

  
Laurus nobilis 'Saratoga'
Sweet Bay
Sun

Can be grown as a tree or shrub.

  
Magnolia spp
Magnolia
Sn/Par-Shady

Deciduous types are often called tulip trees for the shape of their white,yellow or pink flowers.

  
Osmanthus heterophyllus
Hollyleaf Osmanthus
Part Shade
Good hedge or screen, in shrub border or woodland garden.
  
Pelargonium
Scented Geranium
Sn/Par-Shady

Aromatic foliage shunned by deer; some types are variegated.

  
Pennisetum orientale
Fountain Grass
Sn/Par-Shady

Large, feathery plumes; clumps enlarge each year

  
Photinia spp
Photinia
Sn/Par-Shady

Bright red new growth, spring flowers, fall berries. Can prune to control size and shape. Constant leaf drop.

  
Pittosporum spp
Pittosporum
Sn/Par-Shady

Great hedge, screen or windbreak. Glossy foliage, tiny fragrant flowers in spring.

  
Rhaphiolepis spp
Indian Hawthorn
Sn/Par-Shady

Long bloom period spring-fall. Flowers pink or white.

  
Rhus spp
Sumac
Sun

Brilliant fall color; some species spread by suckering.

  
Rosmarinus officinalis
Rosemary
Sun

Varies from groundcover to upright or trailing shrubs. Blue flowers in winter attract butterflies and bees.

  
Salvia spp.
Sage
Sn/Par-Shady

Huge genus with much variation. Virtually all suitable for Bay Area.

  
Sarcococca
Sweet Box
Part Shade

White, fragrant flowers, berry-like fruit. Good drainage

  
Sesleria spp.
Moor Grass
Sn/Par-Shady

Yellow seed heads contrast with pale green foliage

  
Solanum jasminoides
Potato Vine
Sn/Par-Shady

Blue or white flowers, long summer bloom. Cut back to renew.

  
Spirea spp
Spirea/Bridal Wreath
Sn/Par-Shady

Beautiful sprays of white or pink bloom in spring. Dwarf forms available.

  
Stachys byzantina
Lamb's Ears
Sn/Par-Shady

Many cultivars. Heavy rains in winter can shorten life. Foliage has beautiful color and texture.

  
Teucrium spp
Germander
Sn/Par-Shady

Some are large and shrubby, others much smaller.

  
Thymus spp
Thyme
Sn/Par-Shady

Genus includes ground-covers and upright or mounding perennials.

  
Trachelospermum jasminoides
Star Jasmine
Sn/Par-Shady

Fragrant white flowers, good fall/winter foliage.

Moderate
  
Abutilon spp.
Flowering Maple
Sn/Par-Shady

Much variety within genus. Can be pruned as shrub or small tree. Flowers year-round. Part shade in hottest locations.

 

  
Aristolochia californica
California Pipe Vine
Part Shade

Slow to establish. Pipe vine swallowtail butterfly larva feeds solely on aristolochia.

  
Asclepsis spp
Milkweed, Butterfly Weed
Sun

Cut to ground in late winter.

  
Aster spp
Michaelmas Daisy
Sn/Par-Shady

Cut to ground in late winter.

  
Bergenia spp
Bergenia
Sn/Par-Shady

Evergreen.

  
Bouteloua gracilis
Blue Grama
Sn/Par-Shady

Reddish flower heads in summer.

  
Buddleia spp.
Butterfly bush
Sn/Par-Shady

Prune to 6 inches from the ground in early spring to encourage bloom and control shape.

  
Buxus spp
Box
Sn/Par-Shady

Slow growing. Classic hedge plant

  
Calamagrostis x acutiflora
Feather Reed Grass
Sn/Par-Shady

Forms dramatic narrow clumps, attractive flowers.

  
Callistemon spp
Bottle Brush
Sn/Par-Shady

Some varieties frost-tender.

  
Carex spp.
Sedge
Sn/Par-Shady

Brown or green leaved varieties provide contrast in color and texture.

  
Carpenteria californica
Bush anemone
Sn/Par-Shady

Needs good drainage.

  
Caryopteris spp
Bluebeard
Sun

Cut just above ground in early spring.

  
Centauria cineraria
Dusty Miller
Sun

Flowers in summer; foliage attractive year-round.

  
Choisya ternata
Mexican Orange
Sn/Par-Shady

Fragrant white flowers late winter/early spring. Part shade in hottest locations.

  
Citrus spp
Orange, Lemon, etc
Sun

Dwarf varieties available for containers or patios

  
Cornus nuttallii
Pacific Dogwood
Part Shade

Dislikes excessive watering, fertilizing and pruning.

  
Daphne odora ‘Aureo-marginata’
Winter Daphne
Part Shade

Compact forms available. Extremely fragrant flowers

  
Dicentra formosa
Western Bleeding Heart
Part Shade

Dormant in summer with no water.

  
Erica spp
Heath
Sn/Par-Shady
Prefers acid soil with organic content. Some frost tender
  
Eriobotrya spp
Loquat
Sn/Par-Shady

Edible fruit produced in abundance on E. japonica; E. deflexa is fruit-less.

  
Escallonia spp
Escallonia
Sn/Par-Shady

Good hedge or screen. Long summer bloom. Can die back in hard freeze, generally recovers.

  
Euonymous spp
Winter Creeper
Sn/Par-Shady

Huge variety, from groundcovers to large shrubs. Many landscape uses.

  
Festuca idahoensis
Idaho Blue Fescule
Sn/Par-Shady

Small, low clumps need replacing every few years

  
Geranium spp
Cranesbill, Hardy Geranium
Sn/Par-Shady

Plants in some shade require less water. Many cultivars available.

  
Hebe spp
Hebe
Part Shade

Many varieties. Good as accent plants or small hedges.

  
Helictotrichon sempervirens
Blue Oat Grass
Sn/Par-Shady

Golden flower stalks contrast with blue foliage

  
Helleborus spp.
Hellebore
Sn/Par-Shady

Water requirements vary greatly by species. H. argutifolia, foetidus, lividus and sternii most drought-tolerant.

  
Heuchera spp
Coral Bells
Part Shade

Non-native species require more water, typically have dramatic foliage.

  
Hydrangea quercifolia
Oak Leaf Hydrangea
Sn/Par-Shady

Only hydrangea that tolerates sun and dry conditions. Dramatic flowers, interesting bark and good fall color.

  
Kerria japonica
Kerria
Sn/Par-Shady

Beautiful flowers, lovely in woodland garden or shrub border

  
Koelreuteria bipinnata
Chinese Flame Tree
Sun

Red-spotted yellow flowers in summer followed by rose-colored papery seed capsules.

  
Leptospermum spp
Tea Tree
Sun

Protect from hard frost. Dramatic bloom in white, pink or red.

  
Luma apiculata
Luma
Sn/Par-Shady

Beautiful bark, good hedge or screen or specimen plant.

  
Miscanthus sinensis 'Adagio'
Maiden Grass
Sun

One of the most well-behaved Miscanthus.

  
Myrica californica
Pacific Wax Myrtle
Sn/Par-Shady

Good hedge or screen. Birds are attracted to berries.

  
Myrtus communis
Myrtle
Sun
Good in mixed or shrub border, small hedge or specimen planting. Good drainage.
  
Nepeta spp
Catmint
Sn/Par-Shady

Cut back in winter to renew.

  
Penstemon spp
Penstemon
Sun

Cut back in winter to renew; native species require lean soil and little water.

  
Philadelphus lewisii
Wild Mock Orange
Part Shade

Single, pure-white flowers. Lovely accent shrub.

  
Phormium spp.
New Zealand Flax
Sn/Par-Shady

Good drainage. Some varieties are huge, many different foliage colors available. Great accent plants.

  
Potentilla spp
Cinquefoil
Sn/Par-Shady

Long bloom period spring-fall. Many flower colors. Decorative.

  
Punica granatum
Pomegranate
Sn/Par-Shady

Summer flowers followed by fall fruit.

  
Ribes spp
Flowering Currant
Sn/Par-Shady

Flowers pink, yellow or white in spring; attracts hummingbirds.

  
Rudbeckia spp
Black-Eyed Susan
Sun

Cut to ground in late winter.

  
Sedum spp.
Stonecrop
Sn/Par-Shady

Huge genus with much variation. Virtually all suitable for Bay Area.

  
Tellima grandiflora
Fringe Cups
Part Shade

Foliage resembles piggy-back plant.

  
Tulbaghia violacea
Society Garlic
Sun

Faint aroma of garlic; long bloom period spring through fall.

  
Verbascum spp
Mullein
Sun

Many cultivars. Short-lived but re-seeds. Dramatic shape and foliage.

  
Viburnum spp
Viburnum
Sn/Par-Shady

Many have striking fall color and dramatic spring bloom. Many large cultivars, compact forms available.

Occasional
  
Arbutus marina
Arbutus
Sn/Par-Shady

More tree-like than Strawberry Tree (A. unedo) with prettier rose-pink flowers late summer to winter.

  
Arbutus unedo
Strawberry Tree
Sun

Compact forms available. White flowers, red, orange, gold berries. Decorative peeling bark.

  
Arctostaphylos densiflora 'Howard McMinn'
Manzanita
Sn/Par-Shady

One of most garden tolerant manzanitas.

  
Chaenomeles spp
Flowering Quince
Sn/Par-Shady

Fruit used for preserves. Flowers late winter.

  
Cupressus spp
Cypress
Sun

Scale-like foliage similar to juniper.

  
Dodonaea viscosa
Hop Bush
Sn/Par-Shady

Can be pruned to control size and shape. Good screen or hedge.

  
Galvezia speciosa
Island Snapdragon
Sn/Par-Shady

Frost tender but will recover

  
Garrya elliptica
Silktassel
Sn/Par-Shady

Winter catkins dramatic. Can be pruned to control size and shape.

  
Grevillea robusta
Silk Oak
Sun

Fast-growing, bright golden flowers in summer. Leaf drop can be messy.

  
Iris spp
Iris
Sn/Par-Shady

Native types take full sun along coast, some shade inland.

  
Lavendula spp
Lavender
Sun

Cut back in winter to renew - plants generally need replacing in 4-6 years.

  
Nandina domestica
Heavenly Bamboo
Sn/Par-Shady

Flowers, persistent red berries, less water if shaded.

  
Olea spp
Olive
Sun

Fruitless and dwarf varieties available.

  
Phlomis spp
Phlomis
Sn/Par-Shady

Showy spring display of yellow flowers. Wooly gray-green leaves.

  
Pistacia chinensis
Chinese Pistache
Sun

Fall color bright orange/red.

  
Rhamnus californica
Coffeeberry
Sn/Par-Shady

Excellent hedge, screen or specimen. Prune to control size and shape. Some varieties have showy berries.

  
Rhus integrifolia
Lemonade Berry
Sn/Par-Shady

Can be frost-tender inland, spring flowers, summer red fruit.

  
Rhus ovata
Sugarbush
Sn/Par-Shady

Attractive foliage, good form.

  
Senecio spp
Dusty Miller
Sn/Par-Shady

Classic dusty miller foliage; renew by shearing annually.

  
Senecio viravira
Dusty Miller
Sn/Par-Shady

Palest white of Dusty Millers; pinch stem tips to encourage compactness.

  
Symphoricarpos albus
Snowberry
Part Shade

Spring flowers followed by long-lasting dramatic white berries.

  
Tagetes lemmonii
Mexican Bush Marigold
Sn/Par-Shady

Intensely fragrant foliage; cheerful golden-yellow flowers; prune annually.

  
Verbena spp
Verbena
Sn/Par-Shady

Some cultivars require more water. Most short (ex V. bonariensis up to 6').

  
Vitex agnus-castus
Chaste Tree
Sun

Blue, white or pink flowers bloom in late summer when most other plants are past their prime.

  
Vitis californica
California Wild Grape
Sn/Par-Shady

Named cultivars available, brilliant fall color.

  
Wisteria spp
Wisteria
Sn/Par-Shady

Prune back after bloom to control size and encourage flowering. Aggressive but beautiful.

 

Remember that water requirements, as well as sun will vary by micro-climate within the county.