Cool Maritime: The Pacific Northwest

From San Francisco north to Vancouver and the Alaska panhandle is a narrow, highly populated coastal region. This region corresponds with USDA Zones 8–9, and Sunset Zones 5 and 17.

Perennial in all of the Cool Maritime zone:

Allium ampeloprasum perennial sweet lseek

Allium cepa aggregatum shallot

Allium cepa aggregatum potato onion

Allium cepa proliferum walking onion

Allium fistulosum Welsh onion

Allium tricoccum ramps

Allium tuberosum garlic chives

Allium ursinum ramson

Apios americana groundnut

Aralia cordata udo

Arundinaria gigantea canebrake bamboo

Asparagus officinalis asparagus

Asphodeline lutea yellow asphodel

Atriplex halimus saltbush

Beta vulgaris maritime sea beet

Brassica oleracea wild cabbage

Brassica oleracea acephala ‘Western Front’ perennial kale

Brassica oleracea acephala ‘Tree Collard’, ‘Walking Stick Kale’

Brassica oleracea acephala tropical tree kale

Brassica oleracea alboglabra gai lon

Brassica oleracea botrytis perennial broccoli, including ‘9 Star’

Brassica oleracea ramosa branching bush kale, including ‘Dorbentons’

Bunias orientalis Turkish rocket

Camassia cusickii Cusick’s camass

Camassia leichtlinnii Leichtlin’s camass

Camassia quamash camass

Camassia scillioides wild hyacinth

Canna edulis achira

Cedrella sinensis fragrant spring tree

Chenopodium bonus-henricus good king Henry

Cicorium intybus chicory

Colocasia esculenta ‘Celery Stem’ taro

Colocasia esculenta taro, cocoyam, eddo, dasheen

Crambe maritima sea kale

Cyperus esculentus sativa chufa

Dioscorea bulbifera air potato

Dioscorea japonica jinenjo

Dioscorea opposita Chinese yam

Diplotaxis muralis & sylvetta arugula

Helianthus tuberosa sunchoke

Hemerocallis daylily

Laportaea Canadensis wood nettle

Levisticum officinale lovage

Malva moschata musk mallow

Matteuccia struthiopteris ostrich fern

Nasturtium officinale watercress

Nelumbo nucifera water lotus

Oenanthe javanica water celery

Opuntia spp. spineless nopale cactus

Oxyria digyna mountain sorrel

Petasites japonicus fuki

Phyllostachys spp. running bamboos

Phytolacca americana pokeweed

Polygonatum biflorum canaliculatum giant Solomon’s seal

Qiongzhuea tumidissinoda running bamboo

Rheum rubarbarum rhubarb

Rumex acetosa French sorrel

Rumex acetosa ‘Profusion’ sorrel

Rumex acetosella sheep sorrel

Rumex scutatus silver shield sorrel

Sagittaria latifolia arrowhead

Sagittaria sinensis Chinese arrowhead

Sasa kurilensis chishima-zasa bamboo

Scorzonera hispanica scorzonera

Semiarundinaria fastuosa temple bamboo

Sium sisarum skirret

Stachys sieboldii Chinese artichoke

Taraxacum officinale dandelion

Tilia spp. linden

Tropaeolum tuberousum ‘Ken Aslett’ mashua

Urtica dioica nettles

Perennial in warmer parts of the Cool Maritime zone, or perennial with protection:

Bambusa spp. clumping bamboos

Cynara scolymus globe artichoke

Moringa oleifera moringa (dieback perennial)

Moringa stenopetala moringa (dieback perennial)

Musa x paradisica ‘Rajapuri’ banana

Oxalis tuberosa oca

Phaseolus coccineus runner bean

Phaseolus lunatus Lima bean

Physalis peruviana goldenberry

Smallianthus sonchifolia yacon

Solanum muricatum pepino melon

Can be grown as annuals in the Cool Maritime zone:

Abelmoschus manihot edible hibiscus

Alternanthera sissoo sissoo spinach

Basella alba Malabar spinach

Capsicum annum ‘Perennial Capsicum’ sweet pepper

Cnidoscolus chayamansa ‘Stingless’ chaya

Coccinia grandis ‘Sterile’ perennial cucumber

Cucurbita ficifolia Malabar gourd

Dolichos lablab hyacinth bean

Eleocharis dulcis water chestnut

Gynura crepioides Okinawa spinach

Hibiscus acetosella cranberry hibiscus

Ipomoea aquatica water spinach

Ipomoea batatas sweet potato

Lycopersicon spp. tomato

Manihot esculenta cassava (as leaf crop only)

Momordica charantia bitter gourd

Moringa oleifera moringa

Moringa stenopetala moringa

Oxalis tuberosa oca

Phaseolus coccineus runner bean

Phaseolus lunatus Lima bean

Phaseolus polysantus cache bean

Physalis peruviana goldenberry

Physalis pruinosa ground cherry

Psophocarpus ‘Day Length Neutral’ winged bean

Sauropus androgynous katuk

Smallianthus sonchifolia yacon

Solanum melongena & spp. eggplant

Solanum muricatum pepino melon

Solanum tuberosum & spp. potato

Tetragonia tetragonioides New Zealand spinach

Ullucus tuberousus ulluco

Xanthosoma brasiliense belembe

Xanthosoma saggitifolium tannier, yautia, malanga

Xanthosoma violaceum violet-stem taro