| Botanical Name | Cultivar | Common Name |
| Galanthus | Flore Pleno | Double Snowdrops |
| Galearis spectabilis | ~ | Showy Orchis |
| Gaultheria procumbens | ~ | Wintergreen |
| Geranium | Johnson's Blue | Johnson's Blue Geranium |
| Geranium sanguineum var. striatum | ~ | Bloody Cranesbill |
| Gillenia trifoliata | ~ | Bowman's Root |
| Hakonechloa macra | Aureola | Golden Variengated Hakone Grass |
| Hamamelis vernalis | ~ | Vernal Witchhazel |
| Helleborus hybridus | Sunshine Strain | Sunshine Strain Hellebore (Purple) |
| Helleborus niger | ~ | Christmas Rose |
| Helleborus orientalis | ~ | Lenten Rose (green, purple) |
| Hemerocallis | American Bicentennial | ~ |
| Hemerocallis | Avon Crystal Rose | ~ |
| Hemerocallis | Baby Betsy | ~ |
| Hemerocallis | Baltimore Oriole | ~ |
| Hemerocallis | Black Friar | ~ |
| Hemerocallis | Dark Star | ~ |
| Hemerocallis | Don's Wild Heather | ~ |
| Hemerocallis | Lavender Cameo | ~ |
| Hemerocallis | Lullaby Baby | ~ |
| Hemerocallis | Tender Shepard | ~ |
| Hemerocallis sp. | ~ | Common Daylily |
| Hepatica acutiloba | ~ | Sharp-Lobed Hepatica |
| Heuchera | Plum Pudding | Plum Pudding Coral Bells |
| Heuchera micrantha | Palace Purple | Palace Purple Coral Bells |
| Hosta spp. | Cultivars | All Hostas |
| Hydrangea grandiflora | ~ | Smooth Hydrangea |
| Hydrangea petiolaris anomala | ~ | Climbing Hydrangea |
| Iris | Gingerbread Man' | Dwarf Iris |
| Iris | UK from TG | Dwarf Iris |
| Iris pumila | Brassie | Yellow Miniature Iris |
| Iris reticulata | ~ | Yellow Miniature Iris |
| Lamiastrum galeobdolon | Herman's Pride | Herman's Pride Archangel |
| Lamium maculatum | ~ | Deadnettle |
| Ligularia dentata | Othello | Big Leaf Goldenray |
| Lilium oriental | Casa Blanca | Casa Blanca Lily |
| Lilium tigrinum | White | White Tiger Lily |
| Lilium x. hybridum | Menton | ~ |
| Lilium x. hybridum | Montreaux | ~ |
| Liparis lilifolia | ~ | Large Twayblade |
| Liriope spicata | ~ | Lily turf |
| Lobelia cardinalis | ~ | Cardinal Flower |
| Lobelia siphylitica | ~ | Great Blue Lobelia |
| Lunaria annua variegata | Mauve | Money Plant |
| Lupinus sp. | ~ | Lupine |
| Lycoris cv. | ~ | Resurrection Lily |
| Lysimachia numlleria aurea | Goldilocks | Gold Creeping Jenny |
| Home | Plants A-F | Plants M-Z | The Big List |