| Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Abelmoschus esculentus | Okra | Annual | 1.0 |
5-11
| | LMH | N | M | 4 | 3 | 2 |
| Abelmoschus manihot | Aibika | Perennial | 3.0 |
8-11
| F | LMH | N | M | 4 | 1 | 2 |
| Abelmoschus moschatus | Musk Mallow,Musk Okra | Perennial | 2.0 |
8-11
| F | LMH | N | M | 2 | 3 | |
| Anemopsis californica | Yerba Mansa | Perennial | 0.5 |
7-10
| | LMH | SN | WeWa | 2 | 2 | |
| Calocedrus decurrens | Incense Cedar, California Incense Cedar | Tree | 15.0 |
5-8
| S | LMH | SN | DM | 1 | 1 | |
| Centella asiatica | Gotu Kola, Spadeleaf | Perennial | 0.2 |
7-10
| | LMH | SN | MWe | 2 | 5 | |
| Clappertonia ficifolia | Bolo Bolo | Shrub | 2.5 |
10-12
| F | LM | N | MWe | 0 | 1 | 4 |
| Decemium appendiculatum | Waterleaf | Biennial/Perennial | 0.4 |
-
| | LMH | S | MWe | 1 | 0 | |
| Desmodium canadense | Showy tick-trefoil | Perennial | 0.9 |
3-6
| F | LMH | SN | DM | 0 | 0 | 3 |
| Equisetum scirpoides | Dwarf scouring rush | Perennial | 0.2 |
1-9
| S | LMH | FSN | MWe | 2 | 2 | 3 |
| Habenaria intermedia | | Perennial | 0.5 |
-
| | LMH | SN | M | 2 | 0 | |
| Habenaria sparsiflora | Sparse-flowered bog orchid | Perennial | 0.6 |
0-0
| | LMH | SN | M | 1 | 0 | |
| Hablitzia tamnoides | Caucasian spinach | Perennial Climber | 3.0 |
3-9
| F | LMH | FSN | M | 4 | 0 | 1 |
| Hackelia uncinatum | | Perennial | 0.7 |
-
| | LMH | SN | M | 0 | 2 | |
| Hakea drupacea | Sweet Hakea | Shrub | 2.0 |
8-11
| | LMH | SN | DM | 0 | 0 | |
| Hakea sericea | Silky Hakea | Shrub | 3.0 |
8-11
| | LMH | SN | DM | 0 | 0 | |
| Hakea suberea | Cork Tree | Tree | 5.0 |
-
| | LMH | SN | M | 1 | 0 | |
| Halenia elliptica | Spurred Gentian | Perennial | 0.6 |
6-9
| | LMH | S | M | 0 | 2 | |
| Halerpestes sarmentosa | | | 0.0 |
-
| | LMH | SN | M | 0 | 2 | |
| Halesia carolina | Silver-Bell Tree, Carolina silverbell, Mountain silverbell | Tree | 8.0 |
4-8
| M | LM | N | M | 1 | 0 | |
| Halesia tetraptera | Silverbell or Mountain Silverbell | Tree | 10.0 |
4-8
| M | LMH | FSN | M | 2 | 0 | 2 |
| Halimione portulacoides | Sea Purslane | Shrub | 0.8 |
-
| | LMH | SN | MWe | 3 | 0 | |
| Halimodendron halodendron | Salt Tree, Common salttree | Shrub | 2.0 |
0-0
| | LM | N | DM | 0 | 0 | 0 |
| Halogeton arachnoideus | | Annual | 0.3 |
-
| | LMH | SN | M | 1 | 0 | |
| Haloxylon ammodendron | Saxaul | Shrub | 2.0 |
0-0
| | LM | N | DM | 0 | 0 | 4 |
| Haloxylon persicum | Salt Tree | Tree | 4.5 |
-
| | LM | N | DM | 0 | 0 | |
| Haloxylon spp | Saxaul | Shrub | 8.0 |
10-12
| S | LM | N | DM | 3 | 2 | 4 |
| Hamamelis virginiana | Witch Hazel, American witchhazel, Common Witchhazel, Virginian Witchhazel, Witchhazel | Shrub | 5.0 |
3-8
| S | LM | SN | M | 1 | 5 | |
| Hancornia speciosa | Mangaba Rubber Tree, Mangabiera | Tree | 7.0 |
10-12
| S | LM | N | M | 3 | 2 | 3 |
| Handroanthus guayacan | Guayacan | Tree | 40.0 |
10-12
| M | LMH | N | M | 0 | 0 | 4 |
| Handroanthus impetiginosus | Pau D'Arco, Pink Trumpet Tree | Tree | 20.0 |
10-12
| F | LMH | N | M | 2 | 4 | 3 |
| Handroanthus serratifolius | Yellow Trumpet Tree | Tree | 30.0 |
10-12
| M | LMH | N | M | 0 | 2 | 5 |
| Haplopappus nuttallii | | Perennial | 0.3 |
-
| | LMH | SN | M | 1 | 1 | |
| Haplopappus spinulosus | Spiny Ironplant | Shrub | 0.6 |
-
| | LMH | SN | DM | 0 | 1 | |
| Hardenbergia violacea | Coral Pea, Purple Coral Pea, False Sarsaparilla, Vine Lilac | Climber | 2.0 |
9-11
| F | LMH | SN | M | 1 | 0 | |
| Hebe brachysiphon | | Shrub | 2.0 |
6-9
| F | LMH | N | M | 0 | 0 | |
| Hebe dieffenbachii | | Shrub | 1.2 |
8-11
| | LMH | SN | M | 0 | 0 | 2 |
| Hebe 'Great Orme' | Great Orme Hebe | Shrub | 1.5 |
5-9
| | LMH | N | M | 0 | 0 | 3 |
| Hebe rakaiensis | | Shrub | 1.0 |
5-9
| | LMH | N | M | 0 | 0 | 3 |
| Hebe salicifolia | | Shrub | 4.5 |
6-9
| | LM | N | M | 0 | 1 | 3 |
| Hebe speciosa | New Zealand hebe | Shrub | 1.5 |
6-9
| | LM | N | M | 0 | 0 | 2 |
| Hebe x franciscana | Hebe | Shrub | 2.5 |
9-11
| S | LM | SN | M | 0 | 0 | 3 |
| Hedeoma pulegioides | American Pennyroyal, American false pennyroyal | Annual | 0.3 |
5-9
| | LMH | SN | DM | 3 | 3 | |
| Hedera helix | Ivy, English ivy, Algerian ivy, Baltic Ivy, Common Ivy | Climber | 15.0 |
5-11
| M | LMH | FSN | MWe | 0 | 3 | 4 |
| Hedera nepalensis | Nepal Ivy | Climber | 15.0 |
7-10
| M | LMH | FSN | MWe | 0 | 2 | |
| Hedychium coronarium | Butterfly Ginger, White garland-lily, Garland Flower, Butterfly Lily | Perennial | 1.5 |
8-11
| F | LMH | N | MWe | 2 | 2 | 0 |
| Hedychium gracile | | Perennial | 0.6 |
8-11
| | LMH | N | M | 1 | 0 | |
| Hedychium spicatum | | Perennial | 1.5 |
7-10
| | LMH | N | M | 1 | 2 | |
| Hedysarum alpinum | Alpine Sweetvetch | Perennial | 0.6 |
4-8
| | LMH | N | M | 3 | 0 | |
| Hedysarum arcticum | | Perennial | 0.3 |
-
| | LMH | N | M | 2 | 0 | |
| Hedysarum boreale | Sweet Vetch, Utah sweetvetch, Northern sweetvetch | Perennial | 0.1 |
3-7
| | LMH | N | M | 4 | 0 | 3 |
| Hedysarum boreale mackenzii | Liquorice Root | Perennial | 0.1 |
3-7
| | LMH | N | M | 4 | 0 | |
| Hedysarum hedysaroides | Alpine French Honeysuckle | Perennial | 0.4 |
4-8
| | LMH | N | M | 3 | 0 | |
| Hedysarum occidentale | Liquorice Root, Western sweetvetch | Perennial | 0.1 |
4-8
| | LMH | N | M | 4 | 0 | |
| Hedysarum sachalinense | | Perennial | 0.5 |
-
| | LMH | N | M | 2 | 0 | |
| Hedysarum vicioides | | Perennial | 0.7 |
3-7
| | LMH | N | M | 2 | 0 | |
| Heimia myrtifolia | | Shrub | 1.5 |
7-10
| | LMH | N | M | 1 | 1 | |
| Heimia salicifolia | Erva De Vida, Shrubby yellowcrest | Shrub | 3.0 |
7-10
| | LMH | N | M | 1 | 1 | |
| Heldreichia rotundifolia | | Perennial | 0.3 |
-
| | LMH | SN | M | 2 | 0 | |
| Helenium amarum | Bitter Sneezeweed, Sneezeweed | Annual | 0.6 |
0-0
| | LMH | N | M | 0 | 1 | 0 |
| Helenium autumnale | Sneezeweed, Common sneezeweed, Fall sneezeweed, Mountain sneezeweed, False Sunflower | Perennial | 1.8 |
3-8
| F | LMH | N | M | 0 | 2 | 0 |
| Helenium hoopesii | Owls Claws, Orange Sneezeweed | Perennial | 0.9 |
4-8
| M | LMH | SN | M | 1 | 1 | |
| Helenium puberulum | Rosilla | Annual/Perennial | 1.5 |
7-10
| | LMH | N | M | 1 | 1 | |
| Helianthemum canadense | Frostweed, Longbranch frostweed | Perennial | 0.4 |
6-9
| | LM | N | DM | 0 | 2 | |
| Helianthemum nummularium | Common Rockrose, Sun Rose, Rock Rose | Shrub | 0.5 |
5-8
| F | LMH | SN | M | 0 | 1 | |
| Helianthus annuus | Sunflower, Common sunflower | Annual | 3.0 |
6-9
| F | LMH | SN | DM | 5 | 2 | 5 |
| Helianthus cusickii | Cusick's sunflower | Perennial | 0.6 |
7-10
| F | LMH | N | DM | 3 | 1 | 0 |
| Helianthus decapetalus | Thinleaf sunflower | Perennial | 1.2 |
2-8
| M | LMH | SN | M | 0 | 0 | 2 |
| Helianthus doronicoides | | Perennial | 1.8 |
4-8
| | LMH | N | M | 2 | 0 | |
| Helianthus giganteus | Giant Sunflower | Perennial | 3.6 |
4-8
| F | LMH | N | M | 3 | 0 | 0 |
| Helianthus hybrids | Perennial Sunflower | Perennial | 3.6 |
4-11
| F | LMH | N | DM | 4 | 2 | 2 |
| Helianthus laetiflorus | Showy Sunflower, Cheerful sunflower | Perennial | 2.0 |
4-8
| | LMH | N | M | 2 | 0 | |
| Helianthus lenticularis | Wild Sunflower | Annual | 3.0 |
-
| | LMH | N | M | 3 | 0 | |
| Helianthus maximilianii | Maximillian Sunflower, Maximillian Daisy | Perennial | 2.4 |
5-10
| M | LMH | N | M | 3 | 0 | 0 |
| Helianthus pauciflorus | Stiff Sunflower, Prairie Sunflower | Perennial | 1.5 |
3-7
| F | LMH | N | DM | 4 | 0 | 1 |
| Helianthus petiolaris | Prairie Sunflower | Annual | 3.0 |
4-8
| | LMH | N | DM | 2 | 1 | 0 |
| Helianthus strumosus | Paleleaf Woodland Sunflower | Perennial | 2.0 |
4-8
| | LMH | N | M | 2 | 1 | |
| Helianthus tuberosus | Jerusalem Artichoke | Perennial | 2.4 |
4-8
| F | LMH | N | DM | 4 | 1 | 3 |
| Helichrysum apiculatum | Common Everlasting Flower | Shrub | 0.6 |
8-11
| | LMH | SN | M | 0 | 1 | |
| Helichrysum arenarium | Everlasting Flower | Perennial | 0.3 |
4-8
| | LM | N | DM | 0 | 2 | |
| Helichrysum italicum | Curry Plant | Shrub | 0.6 |
7-10
| | LM | N | DM | 2 | 0 | |
| Helichrysum orientale | | Perennial | 0.3 |
6-9
| | LM | N | DM | 0 | 0 | |
| Helichrysum stoechas | | Perennial | 0.5 |
7-10
| | LM | N | DM | 0 | 1 | |
| Helicostylis tomentosa | Letterhout, Letter Wood | Tree | 20.0 |
10-12
| M | LMH | N | M | 4 | 2 | 3 |
| Heliopsis helianthoides | False sunflower, Oxeye sunflower | Perennial | 1.5 |
3-9
| F | LMH | SN | DM | 2 | 0 | 2 |
| Heliotropium arborescens | Heliotrope, Garden heliotrope, Cherry Pie, Heliotrope | Shrub | 1.0 |
9-11
| M | LMH | N | M | 0 | 1 | |
| Heliotropium ellipticum | | Perennial | 0.3 |
-
| | LMH | SN | DM | 0 | 1 | |
| Helleborus foetidus | Stinking Hellebore, Setterwort, Bear's Foot, Bearsfoot, Setterwort, Stinkwort, Stinking Hellebore | Perennial | 0.8 |
6-9
| M | LMH | S | M | 0 | 2 | |
| Helleborus niger | Black Hellebore | Perennial | 0.3 |
3-7
| | LMH | S | M | 0 | 2 | |
| Helleborus viridis | Green Hellebore | Perennial | 0.3 |
5-9
| | LMH | S | M | 0 | 2 | |
| Helwingia chinensis | | Shrub | 1.5 |
7-10
| | LMH | FS | M | 1 | 1 | |
| Helwingia himalaica | | Shrub | 2.5 |
-
| | LMH | FS | M | 1 | 0 | |
| Helwingia japonica | | Shrub | 1.5 |
7-10
| | LMH | SN | M | 1 | 0 | |
| Helwingia liukiuensis | | Shrub | 1.5 |
-
| | LMH | FS | M | 1 | 0 | |
| Hemerocallis altissima | | Perennial | 1.2 |
-
| | LMH | SN | DM | 4 | 1 | |
| Hemerocallis aurantiaca | | Perennial | 0.8 |
5-9
| | LMH | SN | DM | 4 | 1 | 2 |
| Hemerocallis bulbiferum | | Perennial | 0.0 |
-
| | LMH | SN | DM | 4 | 1 | |
| Hemerocallis citrina | Citron daylily | Perennial | 0.8 |
4-8
| | LMH | SN | DM | 4 | 1 | 2 |
| Hemerocallis coreana | | Perennial | 0.4 |
0-0
| | LMH | SN | DM | 4 | 1 | 0 |
| Hemerocallis darrowiana | Day Lily | Perennial | 0.1 |
0-0
| | LMH | SN | DM | 4 | 1 | 2 |
|