Helleborus purpurascens

Helleborus viridis

Helwingia chinensis

Helwingia himalaica

Heptacodium miconioides

Hesperaloe campanulata

Hydrangea barbara

Hypericum densiflorum

Iberis gibraltarica

Indigofera dielsiana

Indigofera himalayensis

Indigofera kirilowii

Indigofera szechuensis

Iris 'Sheila Ann Germaney'

Iris confusa

Iris foetidissima

Iris germanica 'Kaiserstuhl'

Iris lactea

Iris pallida variegata

Iris reticulata

Itea ilicifolia

Jasminum nudiflorum

Jasminum stephanense

Jubaea chilensis

Lagerstroemia 'Natchez'

Lagerstroemia 'Sioux'

Lagerstroemia 'Tuskegee'

Lagerstroemia indica 'Carolina Beauty'

Lagotis stolonifera

Leptospermum namadgiensis

Leucothoe fontanesiana 'Zeblid'

Leycesteria formosa 'Kalamuni'

Liquidambar styraciflua

Liriope muscari

Liriope muscari 'Gold Banded'

Liriope muscari 'Okina'