Winnifred Gilman Dark Blue Sage
Wintercreeper
Wisley Pink Sun Rose
Woolly Blue Curls
Woolly Yarrow
Wulfen Euphorbia
Yankee Point California Lilac
Yarrow
Yellow Bahia
Yellow Bird Of Paradise
Yellow bulbine
Yellow Dead Nettle
Yellow Eyed Grass
Yellow Geum
Yellow Moraea, Fortnight Lily
Yew Pine
Zebra Iris, Orris Perfume Iris