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Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
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- Haageocereus
- Haastia
- Habenaria (an orchid genus)
- Haberlea
- Habranthus
- Hacquetia
- Haemanthus (blood lily)
- Hakea
- Hakonechloa
- Halesia (silverbell)
- Halimiocistus (hybrid genus)
- Halimium
- Halimodendron
- Hamamelis (witch-hazel)
- Haplopappus
- Hardenbergia (coral pea)
- Harrisia
- Hatiora
- Haworthia
- Hebe
- Hechtia
- Hedera (ivy)
- Hedychium
- Hedyotis (bluets)
- Hedysarum
- Hedyscepe (umbrella palm)
- Helenium (sneezeweed)
- Helianthemum (rock rose)
- Helianthus (sunflower)
- Helichrysum
- Heliconia
- Helictotrichon
- Heliocereus
- Heliophila
- Heliopsis (ox eye)
- Heliotropium (heliotrope)
- Helleborus (hellebore)
- Heloniopsis
- Hemerocallis (daylily)
- Hemigraphis
- Hepatica
- Heptacodium
- Heracleum
- Herbertia
- Hereroa
- Hermannia
- Hermodactylus
- Hesperaloe
- Hesperantha
- Hesperis
- Hesperocallis
- Heterocentron
- Heterotheca
- Heuchera (coral flower)
- Heucherella (hybrid genus)
- Hibbertia
- Hibiscus (rose of Sharon)
- Hieracium (hawkweed)
- Himalayacalamus
- Hippeastrum (amaryllis)
- Hippocrepis
- Hippophae
- Hohenbergia
- Hohenbergiopsis
- Hoheria
- Holboellia
- Holcus
- Holmskioldia
- Holodiscus
- Homalocladium (ribbon bush)
- Homeria
- Hoodia
- Hordeum (barley)
- Horminum
- Hosta (plantain lily)
- Hottonia
- Houttuynia
- Hovea
- Hovenia
- Howea (sentry palm)
- Hoya (wax flower)
- Huernia
- Humulus (hops)
- Hummemannia
- Huntleya
- Hyacinthella
- Hyacinthoides
- Hyacinthus (hyacinth)
- Hydrangea
- Hydrastis (goldenseal)
- Hydrocharis (frogbit)
- Hydrocleys
- Hydrocotyle (pennywort)
- Hygrophila
- Hylocereus
- Hylomecon
- Hymenocallis
- Hymenosporum
- Hyophorbe (bottle palm)
- Hyoscyamus (henbane)
- Hypericum (St. John's wort, rose of Sharon)
- Hyphaene (doum palm)
- Hypocalymma
- Hypoestes
- Hypoxis (starflower)
- Hypsela
- Hyssopus (hyssop)
Read more about this topic: List Of Garden Plants