Ornamental Perennial Vegetables for the Edible Garden
Eric Toensmeier in his excellent book Perennial Vegetables: From Artichokes to Zuiki Taro, a Gardener's Guide to Over 100 Delicious, Easy-to-Grow Edibles, has suggested a number of perennial vegetables that can be viewed in the database:
BULBS
Camassia leichtlinii Wild Hyacinth
Camassia quamash Quamash
Camassia scilloides Atlantic Camas
Day Lily (many – search Database)
Chives Allium schoenoprasum
Welsh Onion Allium fistulosum
GROUND COVER
Chinese Artichoke Stachys affinis
Day Lily (many – search Database)
Fuki or Sweet Coltsfoot Petasites japonicus
New Zealand Spinach Tetragonia tetragonoides
Ostrich Fern Matteuccia pensylvanica
Ostrich Fern Matteuccia struthiopteris
Sheep Sorrel Rumex acetosella
Sweet Potato Ipomoea batatas
Water Dropwort Oenanthe javanica
ORNAMENTAL GRASSES & BAMBOOS
Clumping and running bamboos (many – search Database)
Miscanthus floridulus
ORNAMENTAL SHRUBS
Tree Spinach Chenopodium giganteum
Rose Of Sharon Hibiscus syriacus
Also a number of other hibiscus spp (search Database)
ORNAMENTAL VINES
Chinese yam Dioscorea batatas
Ground Nut Apios Americana
Hyacinth Bean Lablab purpureus
Malabar Gourd Cucurbita ficifolia
Runner Bean Phaseolus coccineus
Winged Bean Psophocarpus tetragonolobus
ORNAMENTAL PERENNIALS
Achira Canna edulis
Arracacha Arracacia xanthorrhiza
Asparagus Asparagus officinalis
Solomon's Seal Polygonatum multiflorum
Globe Artichoke Cynara scolymus
Collards Brassica oleracea viridis
Rhubarb Rheum rhaponticum
Sea Kale Crambe maritime
Skirret Sium sisarum
Turkish Rocket Bunias orientalis
Udo Aralia cordata
Yacon Strawberry Polymnia edulis