Department of Horticulture

Hardy Plants for Waterwise Landscapes

A-Z Index

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Scientific name

Common name

Plant type

Abies koreana Korean fir Tree
Abies lasiocarpa N Subalpine fir Tree
Abies concolor N White fir Tree
Acer grandidentatum N Canyon maple Tree
Acer griseum Paperbark maple Tree
Acer tataricum Tatarian maple Tree
Acer glabrumN Rocky Mountain maple Tree
Achillea spp. N@ Yarrow Perennial
Alchemilla mollis ●@ Lady's mantle Perennial
Allium cernuum Nodding onion Bulb
Amelanchier alnifoliaN Western serviceberry Tree
Amelanchier laevis (×grandiflora) Apple serviceberry Tree
Anemone blanda Grecian windflower Bulb
Antennaria spp. N Pussytoes Groundcover
Aquilegia spp.N@ Columbine Perennial
Arctostaphylos uva-ursi N Kinnikinnick Groundcover
Armeria maritima N@ Sea pink Perennial
Artemisia spp. N Sagebrush or Wormwood Shrub
Asarum caudatumN
Wild ginger Groundcover
Aurinia saxatilis Basket-of-gold Perennial
Berberis koreana Korean barberry Shrub
Berberis thunbergii Japanese barberry Shrub
Bergenia spp. ● Bergenia Perennial
Betula occidentalisN
Water birch Tree
Calamagrostis ×acutiflora 'Karl Foerster' Feather reed grass Grass
Calocedrus decurrens ●@ California incense cedar Tree
Camassia spp. Camas Bulb
Campanula spp. ●N@ Bellflower Perennial
Campsis radicans Trumpet vine Vine
Caragana arborescens Siberian peashrub Shrub
Caryopteris x clandonensis ●@ Blue spirea Shrub
Catalpa spp. Catalpa Tree
Catananche caerulea Cupid's dart Perennial
Ceanothus velutinus N
Snowbrush ceanothus Shrub
Celtis reticulata
Netleaf hackberry Tree
Centranthus ruber Jupiter's beard Perennial
Cerastium tomentosum Snow-in-summer Groundcover
Cercocarpus montanus N True mountain mahogany Shrub
Chaenomeles spp. ●@ Flowering quince Shrub
Chamaebatiaria millefolium N Fernbush Shrub
Chionodoxa spp. @ Glory-of-the-snow Bulb
Cladrastis kentukea Yellowwood Tree
Clarkia amoena N Godetia Annual
Clematis columbiana N
Rock clematis Vine
Clematis ligusticifolia Western white clematis Vine
Clematis tangutica Golden clematis Vine
Cleome hasslerana Spider flower Annual
Coreopsis verticillata Threadleaf coreopsis Perennial
Cornus sericea N Redosier dogwood Shrub
Corydalis lutea ●@ Yellow corydalis Perennial
Cosmos spp. @ Cosmos Annual
Cotinus coggygria Smoke tree Tree
Cotoneaster apiculatus @ Cranberry cotoneaster Shrub
Cotoneaster horizontalis Rockspray cotoneaster Groundcover
Cotoneaster lucidus ●@ Hedge cotoneaster Shrub
Crataegus spp. N Hawthorn Tree
Crocus spp.
Crocus Bulb
Daphne ×burkwoodii Burkwood daphne Shrub
Dasiphora fruticosa N Bush cinquefoil Shrub
Dianthus spp. Pink Perennial
Diervilla sessilifolia Bush honeysuckle Shrub
Dryas octopetala N Mountain avens Groundcover
Echinacea purpurea ●@ Purple coneflower Perennial
Epimedium spp. ● Bishop's hat Groundcover or perennial
Eremurus stenophyllus Foxtail lily Perennial
Ericameria (Chrysothamnus) nauseosus N Rabbitbrush Shrub
Erigeron caespitosus N@ Tufted fleabane Perennial
Eriogonum umbellatum N Buckwheat Groundcover or perennial
Eschscholzia californica @ California poppy Annual
Euonymus alatus Burning bush Shrub
Euonymus fortunei Wintercreeper euonymus Vine
Euphorbia amygdaloides 'Rubra' ●@ Red wood spurge Perennial
Euphorbia griffithii 'Fireglow' Fireglow spurge Perennial
Eurybia divaricata● (Aster divaricatus) White wood aster Perennial
Festuca ovina var. glauca ●@ Blue fescue Grass
Forsythia spp. Forsythia Shrub
Fragaria chiloensis N Beach strawberry Groundcover
Fraxinus pennsylvanica Green ash Tree
Fritillaria imperialis ●  Crown imperial Bulb
Gaillardia spp. N Blanketflower Perennial
Gaillardia pulchella Blanket flower Annual
Galanthus nivalis  Common snowdrop Bulb
Gazania spp. Gazania Annual
Geranium spp. ●@ Hardy geranium Perennial
Geum triflorum @ Prairie smoke Perennial
Ginkgo biloba
Ginkgo Tree
Glandularia ×hybrida Verbena Annual
Gleditsia triacanthos Thornless honeylocust Tree
Globularia spp. Globe daisy Groundcover or perennial
Gomphrena globosa Globe amaranth Annual
Gymnocladus dioica Kentucky coffee tree Tree
Gypsophila repens Creeping baby's breath Groundcover
Helianthemum nummularium Sunrose Perennial
Helianthus annuus N@ Sunflower Annual
Helichrysum bracteatum
Strawflower Annual
Helictotrichon sempervirens ●@ Blue oat grass Grass
Helleborus orientalis ●@ Lenten rose Perennial
Hemerocallis spp. Daylily Perennial
Heuchera spp. ●N Coralbells Perennial
Holodiscus discolor N Ocean spray Shrub
Hosta spp. ● Plantain lily Perennial
Hyacinthus orientalis Hyacinth Bulb
Hypericum calycinum St. John's wort Groundcover
Hypericum spp. ● Hypericum Shrub
Iberis sempervirens Evergreen candytuft Perennial
Ipomoea spp. Morning glory Annual
Iris reticulata  Netted iris Bulb
Iris spp. N Iris Perennial
Juniperus horizontalis Creeping juniper Groundcover
Juniperus occidentalis N Western juniper Tree
Juniperus scopulorum N Rocky Mountain juniper Tree
Juniperus spp. N Juniper Shrub
Kerria japonica Japanese kerria Shrub
Knautia macedonica Crimson pincushion flower Perennial
Koelreuteria paniculata Goldenrain tree Tree
Kolkwitzia amabilis Beauty bush Shrub
Lantana spp. ● Lantana Annual
Lavandula angustifolia @ Lavender Perennial
Lavatera trimestris Mallow Annual
Liatris spp. Gayfeather Perennial
Ligustrum obtusifolium Border privet Shrub
Ligustrum vulgare Common privet Shrub
Lilium spp. Lily Bulb
Limonium gerberi (latifolium) Sea lavender Perennial
Limonium sinuatum
Statice Annual
Linum perenne N@ Blue flax Perennial
Lobularia maritima Sweet alyssum Annual
Lonicera ciliosa
Orange honeysuckle Vine
Lonicera xylosteum Fly honeysuckle Shrub
Luzula sylvatica Greater woodrush Groundcover
Maackia amurensis Amur maackia Tree
Mahonia aquifolium N@ Oregon grape Shrub
Mahonia repensN Creeping mahonia Groundcover
Melampodium paludosum Bush zinnia Annual
Microbiota decussata Russian arborvitae Groundcover
Miscanthus sinensis 'Morning Light' ●@ Maiden grass Grass
Muscari spp. Grape hyacinth Bulb
Narcissus spp. Daffodil Bulb
Ostrya virginiana Ironwood Tree
Paeonia spp. N Peony Perennial
Panicum virgatum Switch grass  
Papaver spp. @ Poppy Annual
Papaver orientale @ Oriental poppy Perennial
Parthenocissus quinquefolia Virginia creeper Vine
Parthenocissus tricuspidata Boston ivy Vine
Paxistima myrsinites N Oregon boxwood Shrub
Pennisetum villosum Feathertop grass Grass
Penstemon spp. N@ Beardtongue Perennial
Perovskia atriplicifolia Russian sage Perennial
Petunia ×atkinsiana Petunia Annual
Phellodendron sp. Cork tree Tree
Philadelphus lewisii N Wild mockorange Shrub
Phlomis russeliana Hardy Jerusalem sage Perennial
Photinia (Aronia) arbutifolia Red chokeberry Shrub
Physocarpus capitatus N Western ninebark Shrub
Physocarpus malvaceus N Mallow ninebark Shrub
Picea abies 'Nidiformis' Bird's nest spruce Shrub
Picea omorika Serbian spruce Tree
Picea pungens N Colorado spruce Tree
Pinus aristata Bristlecone pine Tree
Pinus cembra Swiss stone pine Tree
Pinus flexilisN
Limber pine Tree
Pinus leucodermis
Bosnian pine Tree
Pinus nigra Austrian pine Tree
Pinus ponderosa N Western yellow pine Tree
Portulaca grandiflora Moss rose Annual
Potentilla tridentata Wineleaf cinquefoil Groundcover
Prunus laurocerasus Cherry laurel Shrub
Ptelea trifoliata Hoptree Tree
Pulsatilla vulgaris @ Pasque flower Perennial
Pyracantha coccinea Firethorn Shrub
Pyrus calleryana Callery pear Tree
Quercus coccinea Scarlet oak Tree
Quercus macrocarpa Bur oak Tree
Quercus robur English oak Tree
Quercus rubra Red oak Tree
Rhus trilobata N Three leaf sumac Shrub or groundcover
Rhus typhina Staghorn sumac Tree
Ribes aureum N Golden currant Shrub
Ribes sanguineumN Winter currant Shrub
Rosa nutkana N Nootka rose Shrub
Rosa rubrifolia ●@ Redleaf rose Shrub
Rosa rugosa Rugosa rose Shrub
Rudbeckia spp. Gloriosa daisy Perennial
Salix exigua N Coyote willow Shrub
Salvia spp. @ Sage Perennial
Santolina chamaecyparissus Lavender cotton Perennial
Sanvitalia procumbens Creeping zinnia Annual
Scilla spp. ●@ Squill Bulb
Sedum spp. ● Sedum Perennial
Sedum spp. ●N Stonecrop Groundcover
Sempervivum spp. Hen and chicks Perennial
Senecio cineraria Dusty miller Annual
Seslaria spp. ● Moor grass Grass
Sorbus aucuparia European mountain ash Tree
Spiraea betulifoliaN@ Birchleaf spirea Shrub
Spiraea japonica Japanese spirea Shrub
Spiraea nipponica Nippon spirea Shrub
Spiraea thunbergii Thunberg spirea Shrub
Spiraea ×vanhouttei Vanhoutte spirea Shrub
Stachys byzantina Lamb's ears Groundcover or perennial
Styphnolobium japonicum
(Sophora japonica)
Japanese pagoda tree Tree
Symphoricarpos spp. ●N@ Snowberry Shrub
Symphytum grandiflorum Yellow comfrey Groundcover or perennial
Synthyris missurica N Kittentails Perennial
Syringa reticulata Japanese tree lilac Shrub
Syringa spp. ● Lilac Shrub
Tagetes tenuifolia Signet marigold Annual
Taxus spp. ●N Yew Shrub
Teucrium chamaedrys Germander Perennial
Teucrium canadense Creeping germander Groundcover
Thymus spp. Thyme Groundcover
Tilia tomentosa Silver linden Tree
Tithonia rotundifolia Mexican sunflower Annual
Tropaeolum majus Nasturtium Annual
Tulipa batalinii Species tulip Bulb
Tulipa spp. Tulip Bulb
Ulmus parvifolia Lacebark elm Tree
Veronica liwanensis Turkish speedwell Groundcover
Veronica pectinata Wooly veronica Groundcover
Viburnum lantana Wayfaring tree Shrub
Viburnum ×burkwoodii Burkwood viburnum Shrub
Viburnum ×carlcephalum Fragrant snowball viburnum Shrub
Vitis vinifera Grape vine Vine

Wisteria spp.

Wisteria Vine
XCupressocyparis leylandii
Leyland cypress Tree
Yucca spp. Yucca Shrub

 

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Scientific and common names are listed for each plant.  Plants are listed in alphabetical order.

If the scientific name has a link, it leads to a page with photos and cultural information. If the common name has a link, it leads to photos, but not to cultural information. 


Key to symbols

spp. = More than one species is water-conserving

● = Suitable for dry shade; amount of shade varies

N = Native to Washington or Idaho

@ = May reseed or spread

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