'Gray Gleam' Colorado Red Cedar Gray Honey Myrtle
Gray Pine 'Grayswood Pink' Hybrid Rock Rose
Greasewood (spp.) Greasewood 'Black Diamond'
Greasewood: apiana 'Great Expectations' Common Yarrow
Grecian Laurel (spp.) Grecian Laurel Golden
Green Carpet 'Green Globe' Fragrant Sumac
'Greenspire' Littleleaf Linden Grevillea 'Aromas'
Grevillea 'Austraflora Fanfare' Grevillea 'Caloundra Gem'
Grevillea 'Canberra Gem' Grevillea 'Mason's Hybrid'
Grevillea 'Noellii' Grevillea 'Oleoides x Shiressii'
Grevillea 'Pink Lady' Grevillea 'Pink Pearl'
Grevillea 'Poorinda Golden Lyre' Grevillea 'Red Hooks'
Grevillea 'Ruby Clusters' Grevillea, Holly
Grevillea, Juniper Leaf (spp.) Grevillea, Juniper Leaf 'Sulphurea'
Grevillea, Juniper (spp.) Grevillea, Juniper 'Sulphurea'
Grevillea, Lavender (spp.) Grevillea, Lavender 'Penola'
Grevillea, Lavender 'Tanunda' Grevillea, Olive Leaf
Grevillea, Spindly Grevillea, Woolly (spp.)
Grevillea, Woolly 'Coastal Gem' Grevillea: paniculata
'Gro-low' Fragrant Sumac Gromwell, Purple (spp.)
Gromwell, Purple 'Heavenly Blue' Gromwell, Purple 'Picos'
Groundsel Bush: nummerifolia Groundsel, Silver (spp.)
Groundsel, Silver 'Cirrus' Groundsel, Silver 'New Look'
Groundsel, Silver 'Silver Lace' Groundsel, Silver 'Silverdust'
Groundsel, Silver 'Snowstorm' Guadalupe Palm
Guava, Cattley Guava, Lemon
Guava, Yellow Strawberry 'Haense Hermes' Switch Grass
Hair Grass (spp.) Hair Palm
Hairy Dewflower 'Halka' Thornless Honey Locust
'Harbor Dwarf' Heavenly Bamboo Harmomy Manzanita
Hartweg's Sundrops Hat Tree
Hawthorn, Indian 'Clara' Hawthorn, Indian 'Fascination'
Hawthorn, Indian 'Olivia' Hawthorn, Round-leaf
Hawthorn, Yedda Heavenly Bamboo (spp.)
Heavenly Bamboo Dwarf Heavenly Bamboo 'Firepower'
Heavenly Bamboo 'Harbor Dwarf' 'Heavenly Blue' Purple Gromwell
'Heavy Metal' Switch Grass 'Heidi' Common Yarrow
'Helen Strybing' New Zealand Tea Tree 'Helen von Stein' Lamb's Ears
Hell Vine (spp.) Hemp, New Zealand (spp.)
Hen and Chicks 'Red Edge' Hen and Chicks: colorata
Hen and Chicks: derenbergii Hen and Chicks: dowingo
Hen and Chicks: elegans Hen and Chicks: imbricatahybrid
Hen and Chicks: peacockii Hen and Chicks: potosina
Hen and Chicks: pulidonis Hen and Chicks: secunda glauca
Hen and Chicks: secunda pumila Hen and Chicks: simulans
Henderson's Shooting Star Hens and Chicks, Mexican
Hens and Chicks: canariense Hesperaloe, Giant
Hesperaloe, Night Blooming Hesperaloe, Red
'Hibernica' Common Juniper Hibiscus, Blue (spp.)
'Highland Cream' Creeping Thyme