IBERIS sempervirens ‘Elfenreigen’
ILEX aquifolium ‘Ferox Argentea’
ILEX crenata ‘Golden Gem’
ILEX crenata ‘Green Island’
ILEX myrtifolia
ILEX aquifolium ‘Bacciflava’
ILEX aquifolium ‘Pyramidalis’
ILEX aquifolium ‘Madame Briot’
ILEX aquifolium ‘Myrtifolia’
ILEX aquifolium ‘Golden Milkboy’
ILEX aquifolium ‘J.C. van Tol’
ILEX pernyi
ILEX aquifolium ‘Handsworth New Silver’
IMPATIENS apiculata
IMPATIENS arguta
IMPATIENS arguta ‘Big Form’
IMPATIENS arguta ‘Small Form’
IMPATIENS omeiana
IMPATIENS pseudoviola
IMPATIENS tinctoria
IMPATIENS kilimanjari x pseudoviola
IMPATIENS species ex. China
INCARVILLEA olgae
INCARVILLEA compacta quinghaeensis
INCARVILLEA zhongdianensis
INCARVILLEA delavayi ‘Bees’ Pink’
INCARVILLEA delavayi ‘Snowtop’
INCARVILLEA delavayi
INDIGOFERA amblyantha
INDIGOFERA pendula
INULA hookeri
INULA royleana
INULA ensifolia ‘Compacta’
INULA racemosa
INULA magnifica
IRIS ‘Black Swan’
IRIS chrysographes black
IRIS chrysographes ‘Rubella’
IRIS ensata ‘Rose Queen’
IRIS ex. Japan
IRIS flavissima
IRIS forrestii
IRIS forrestii hybrids
IRIS fulva
IRIS hookeri
IRIS ‘Jane Phillips’
IRIS kochii
IRIS laevigata ‘Albopurpurea’
IRIS ‘Margot Holmes’
IRIS ‘Monspur Cambridge Blue’
IRIS ‘Mrs Tait’
IRIS orientalis
IRIS pallida
IRIS ‘Pinnacle’
IRIS pseudacorus ‘Roy Davidson’
IRIS sanguinea
IRIS setosa ex. Japan
IRIS sibirica ‘Tropic Night’
IRIS species ex. Japan
IRIS unguicularis ‘Mary Barnard’
IRIS variegata
IRIS wattii
IRIS foetidissima
IRIS ensata
IRIS foetidissima citrina
IRIS pseudacorus ‘Variegata’
IRIS ‘English Cottage’
IRIS ‘Blue Denim’
IRIS Monspur Group
IRIS ‘Walter’s Gift’
IRIS cultivar
IRIS pallida ‘Argentea Variegata’
IRIS suaveolens var. violacea
IRIS ‘Blue Rhythm’
IRIS japonica ‘Variegata’
IRIS confusa ‘Martyn Rix’
IRIS japonica ‘Rudolph Spring’
IRIS cristata ‘Alba’
IRIS ‘Florentina’
IRIS pallida ‘Variegata’
IRIS laevigata ‘Variegata’
IRIS foetidissima yellow-seeded
IRIS chrysographes ‘Mandarin Purple’
IRIS ‘Langport Wren’
IRIS ‘Mount Stewart Black’
IRIS sibirica ‘Southcombe White’
IRIS graminea ‘Hort’s Variety’
IRIS chrysographes ‘Black Form’
IRIS robusta ‘Gerald Darby’
IRIS chrysographes ex. ‘Black Form’
IRIS pseudacorus ‘Esk’
IRIS ‘Cliffs of Dover’
IRIS ensata ‘Alba’
IRIS douglasiana
IRIS chrysographes
IRIS x fulvala
IRIS versicolor ‘Kermesina’
IRIS sibirica ‘Ellesmere’
IRIS sibirica ‘Orville Fay’
IRIS graminea pseudocyperus
IRIS chrysographes ‘Black Knight’
IRIS ‘A.W.Tait’
IRIS pallida subsp. Pallida
ITEA yunnanensis
