'Impala' Castor Oil Plant 'Impassion White' African Daisy: Osteospermum
Impatiens 'Bright Eye' Impatiens 'Seashells'
Impatiens, Double (spp.) Impatiens, Double 'Blackberry Ice'
Impatiens, Double 'Blitz 2000 Red' Impatiens, Double 'Candy® Coral Bee'
Impatiens, Double 'Candy® Deep Salmon' Impatiens, Double 'Candy® Mix'
Impatiens, Double 'Candy® Rose Star' Impatiens, Double 'Rose Parade'
Impatiens, Double 'Rosette' Impatiens, Double 'Show Stopper'
Impatiens, Double 'Stardust Salmon' Impatiens, Double 'Super Elfin Orange'
Impatiens, Double 'Super Elfin Swirl' Impatiens, Double 'Victorian Rose'
Impatiens, New Guinea (spp.) Impatiens, New Guinea 'Celebrette Light Coral'
Impatiens, New Guinea 'Colorpower Purple Flame' Impatiens, New Guinea 'Pure Beauty Fuchsia'
Impatiens, Perennial Impatiens, Yellow
Impatiens: kilamanjarensis 'Imperial Blue' Cape Leadwort
'Imperial Green' Philodendron 'Imperial' Green Taro
'Imperial Red' Red-Leaf Philodendron 'Imperial Star' Artichoke
'Imperial Star' Asiatic Lily 'Imperial' Thornless Honey Locust
'Imperialis' European Alder 'Improved Rugen' Wild Strawberry
'In The Navy' Spiderwort: hybrid 'Inca Gold' Conebush
'Inca II' American Marigold Incense Cedar (spp.)
Incense Cedar 'Douglasii Pyramidalis' Incense Cedar 'Emerald'
Incense Cedar 'Excelsa' Incense Cedar 'Fastigiata'
Incense Cedar 'Zebrina' Incienso
'Incisa' European Alder 'Incrediball®' Smooth Hydrangea: arborescens