Plants: I

• Ice Cream Bean Inga edulis Tree fruit
• Iceland Poppy Papaver nudicaule Garden perennial
• Idaho Blue-Eyed Grass Sisyrinchium idahoense Wildflower
• Idaho Fescue Festuca idahoensis Grass
• Ilima Sida fallax Creeping perennial
• Illinois Bundleflower Desmanthus illinoensis
• Illinois Ticktrefoil Desmodium illinoense
• Immortelle Xeranthemum annuum Garden annual
• Impatiens Impatiens walleriana Garden annual
• Indian Blanket Gaillardia pulchella Wildflower
• Indian Hawthorn Rhaphiolepis indica Flowering shrub
• Indian Hemp Apocynum cannabinum Wildflower
• Indian Pink Spigelia marilandica Wildflower
• Indian Plum Oemleria cerasiformis Flowering shrub
• Indian Shot Canna indica Garden perennial
• Indiangrass Sorghastrum nutans Grass sedge
• Inkberry Ilex glabra Flowering shrub
• Inland Ceanothus Ceanothus herbaceus Flowering shrub
• Inland Sea Oats Chasmanthium latifolium Grass sedge
• Inside-Out Flower Vancouveria hexandra Creeping perennial
• Irish Moss Sagina subulata Creeping perennial
• Island Alumroot Heuchera maxima Creeping perennial
• Italian Bugloss Anchusa azurea Garden perennial
• Italian Clematis Clematis viticella Vine
• Italian Jasmine Jasminum humile Flowering shrub
• Italian Ryegrass Lolium perenne ssp. multiflorum Grass
• Ithuriel's Spear Triteleia laxa Wildflower
• Ivy Geranium Pelargonium peltatum Vine