Gardenia augusta Gardenia augusta 'Grifis Select'
Gardenia augusta 'Kleims Hardy' Gardenia augusta 'Veitchii'
Gardenia spatulifolia Garrya elliptica
Gaultheria miqueliana Gaultheria mucronata 'Bell's Seedling'
Gaultheria shallon Gaultheria yunnanensis
Gaylussacia brachycera Geissois benthamii
Genista aetnensis Genista canariensis
Genista hispanica Genista horrida
Genista lydia Genista lydia 'Select (BangleŽ)'
Genista x spachiana Genista tinctoria 'Royal Gold'
Gleditsia triacanthos 'Elegantissima' Gleditsia triacanthos f. inermis 'Emerald Kascade'
Graptophyllum pictum Graptophyllum pictum 'Chocolate'
Grevillea x 'Aromas' Grevillea x 'Caloundra Gem'
Grevillea x 'Canberra Gem' Grevillea x 'Mason's Hybrid'
Grevillea x 'Ned Kelly' Grevillea x 'Noellii'
Grevillea x 'Oleoides x Shiressii' Grevillea x 'Pink Lady'
Grevillea x 'Pink Pearl' Grevillea x 'Poorinda Golden Lyre'
Grevillea x 'Red Hooks' Grevillea x 'Robyn Gordon'
Grevillea x 'Ruby Clusters' Grevillea aquifolium
Grevillea caleyi x hookerana Grevillea crithmifolia
Grevillea endlicheriana Grevillea x gaudichaudii
Grevillea glabrata Grevillea juniperiana
Grevillea juniperiana 'Sulphurea' Grevillea lanigera
Grevillea laurifolia Grevillea lavandulacea
Grevillea lavandulacea 'Penola' Grevillea lavandulacea 'Tanunda'
Grevillea oleoides Grevillea paniculata
Grevillea parvula Grevillea rogersii
Grevillea rosmarinifolia Grevillea rosmarinifolia 'Scarlet Sprite'
Grevillea speciosa Grevillea thelemanniana
Grevillea victoriae 'Marshall's Seedling' Grevillea whiteana
Grevillea willisii Grevillea wilsonii
Grewia natalensis Grewia occidentalis
Greyia radlkoferi Guaiacum coulteri
Guaiacum officinale Guaiacum sanctum
Hakea 'Burrendong Beauty' Hakea bucculenta
X Halimiocistus wintonensis Halimium lasianthum
Hamamelis x intermedia 'Arnold's Promise' Hamamelis x intermedia 'Barnsted Gold'
Hamamelis x intermedia 'Diana' Hamamelis x intermedia 'Hiltenbury'
Hamamelis x intermedia 'Jelena' Hamamelis x intermedia 'Luna'
Hamamelis x intermedia 'Primavera' Hamamelis x intermedia 'Ruby Glow'
Hamamelis japonica var. flavopurpurascens Hamamelis mollis
Hamamelis mollis 'Brevipetala' Hamamelis mollis 'Pallida'
Hamamelis mollis 'Princeton Gold' Hamamelis vernalis
Hamamelis vernalis 'Autumn Embers' Hamamelis vernalis 'Carnea'
Hamamelis vernalis 'Purpurea' Hamamelis vernalis 'Sandra'
Hamamelis virginiana Hamamelis virginiana 'Little Suzie'
Hamelia patens Harrisia gracilis