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| Plant | Origin | Zone | Height | Type | D/M/W |
| Hameila patens - African Firebush | South Florida, Wind, Bolivia, Africa | 108M | 8M | ||
| Harpulia pendula - Puas | Philippines | 10-11 | 8M | ||
| Heliconia spp | West Indies, South America | 11-12 | |||
| Heritiera littoralis - Looking-Glass Tree | East Africa | ||||
| Heterospathe elata - Sagisi Palm | Philippines, Micronesia, Moluccs | 10B-11 | 15m | ||
| Hibiscus spp | 10 | 3M | |||
| Hibiscus tilliaceus - Mahoe | Tropcal Asia, Polynesma | 10 | 6M | ||
| Howea forsteriana - Kentia Palm | Lord Howe Island | 10-11 | 15M | Shade | Moist |
| Hura crepitans - Sandbox Tree | West Indies, South America | 10B-11 | 18M | ||
| Hydriastele kasesa | New Britain, New Island | 10B-11 | 4.5M | Clumping Palms | Moist |
| Hydriastele pinangoides | |||||
| Hydriastele rostrata | Papa, New Guinea | 10B-11 | 10M | Clumping Palms | |
| Hydriastele spp | New Guinea, Australia | 11 | |||
| Hyophorbe indica | Reunion Island | 10B-11 | 10M | Shade | Moist |
| Hyophorbe indica - Red | 10B-11 | Shade | Moist | ||
| Hyophorbe lagenicalus - Bottle Palm | Macarena Islands | 10B-11 | 6M | Moist | |
| Hyophorbe verschaffeltii - Spindle Palm | Macarena Islands | 10B-11 | 8M | Shade | Dry |
| Hyospathe elegans | |||||
| Hyphaene compressa - East African Doum Palm | Eastern Tropical Africa | 10-11 | 20M | Solitary branching | Moist |
| Hyphaene coriacea - Ilala | Eastern Tropical Africa | 9B-11 | 10M | Clumping Palms | Moist |
| Hyphaene dichotoma - Indian Doum Palm | India | 9B-11 | 8M | Clumping Palms | Moist |
| Hyphaene indica - Doum | India | 10B-11 | 7m | Moist | |
| Hyphaene petersiana - Vegetable Ivory Palm | 10B-11 | 15m | Moist | ||
| Hyphaene sp - Doum Palm | Moist | ||||
| Hyphaene thebaica - Gingerbread Palm | N & NE Africa | 10-11 | 15m | Clumping Branching | Moist |
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