Guide to growing garden plants and flowers H
Index of plants garden plants and flowers H
Plants are organised by their common names in the flowers H table. The scientific name is also given.
| Hacquetia | ||
| Hardy ageratum - Eupatorium | Hardy amaryllis - Lycoris | |
| Hardy geranium - Geranium | Hardy gloxinia - Incarvillea | |
| Hair's tail - Lagurus | Harebell - Campanula | |
| Harebell poppy - Meconopsis | Harlequin flower - Sparaxis | |
| Hawk's beard - Crepis | Hawkweed - Hieracium | |
| Heart pea - Cardiospermum | Heart seed - Cardiospermum | |
| Heart's ease - Viola tricolor | Hedgehog Coneflower - Echinacea | |
| Helianthemum | helianthus - sunflower | |
| Heliotrope - Heliotropium | Hellebore - Helleborus | |
| Helmet Flower - Scutellaria | Hemerocallis | |
| Hepatica | herniaria | |
| Heron's bill | Hibiscus | |
| Himalayan Mayapple - Podophyllum | Hog Cranberry - Arctostaphylos | |
| Hollyhock - Althaea | Hollyhock Mallow - Malva | |
| Holy Flax - Santolina | Holy thistle - Silybum | |
| Honesty - Lunaria | Hoop Petticoat - Marcissus | |
| Hop - Humulus | Horned Poppy - Glaucium | |
| Horned violet - Viola | Horn of plenty - Datura | |
| Horseheal - Inula | Hosta - plantain lily | |
| Hottentot Fig - Mesembryanthemum | Hounds Tongue - Cynoglossum | |
| Houseleek - Sempervivum | ||
| Hunnemannia | Husk Tomato - Physalis | |
| Hutchinsia | Hyacinth - Hyacinthus | |
| Hyacinth Bean | Hyacinth of Peru - Scilla | |
| Hyssop - Agatasche | Hyssop - Hyssopus | |