Idaho Locust
Imperial Bronze Bearded Iris
Improved Meyer Lemon
Incana Cranesbill
Incense Cedar
Indian Currant, Coralberry
Indian Hawthorne or Rhaph
Indian Mock Strawberry
Indian Summer Gloriosa Daisy
Irene Rosemary
Iris 'Canyon Snow'
Irish Moss
Irish Yew
Island Alum Root
Island Bush Poppy
Island Bush Snapdragon
Island Ironwood, Catalina Ironwood
Island Oak, California Island Oak
Italian Alder
Italian Buckthorn