Alpine Garden Soc - UK Rock garden plant data base   Clearview Horticultural Products American Dahlia Society National Dahlia Society UK Dahlia World UK Colorado master gardeners Eartheasy Toronto Botanical Garden Colorado State University Virginia State University Cherries - BC Government Ornamental grasses - Illinois University Bluestem Nursery BC ALPINE PLANTS CLEMATIS DAHLIAS DROUGHT PLANTS FERNS GENERAL GARDEN FRUIT TREES GRASSES IRIS PLANNING A GARDEN PERENNIALS RHODODENDRONS ROSES SEEDS VEGETABLES WATER PLANTS American Iris Society Applegate Gardens - ready made borders Perennial Resource Perennial Encyclopedia American Rhododendron Society American Rose Society Canadian Rose Society Thompson and Morgan Canada Vesseys Seeds Canada About gardening Burns Water Gardens - Ontario The following are tested links with quality information.  Members are invited to submit their own trusted information links