How to grow Hemerocallis Day lilly Hemerocallis (hem-er-o-kal-lis) From the Greek hemero, a day, and kallos, beauty, referring to the life of the flowers (Liliaceae). Day lily. Hardy perennials from temperate E. Asia and S. Europe, very adaptable, flowering for […]

How to grow Helxine Helxine (helks-in-e) Derivation uncertain. Possibly from the ancient Greek name for pellitory, a related plant, or from the Latin helix, ivy, since the plant creeps ( Urticaceae). Baby s tears. A genus of a single species […]

How to grow Heliopsis Heliopsis (he-le-op-sis) From the Greek helios, the sun, opsis, like, referring to the flowers (Compositae). Orange sunflower. Hardy herbaceous perennials resembling sunflowers, good border plants, especially since the more recent introduction of several good forms ; […]

How to grow Helichrysum Helichrysum (hel-ee-kry-sum) From the Greek hellos, the sun, chrysos, gold, referring to the yellow flowers of some species. (Compositae). Everlasting flower, Immortelle flower. A large genus of plants ranging from alpines to shrubs, bearing daisy-like flowers. […]

How to grow Helianthus Helianthus (hel-ee-an-thus) From the Greek helios, the sun, anthos, a flower. (Compositae). Sunflower. A genus of tall, coarse-growing plants, annuals and perennials, gross feeders which dominate the border in which they are planted. H. annuus, the […]

How to grow Gazania Gazania (gaz-ay-ne-a) Commemorating Theodore of Gaza, fifteenth-century translator of the botanical works of Theophrastus (Compositae). Treasure flower. Half-hardy perennials from South Africa, with showy flowers, which open in the sun and close about 3 p.m. The […]

How to grow Euphorbia Euphorbia (u-for-be-a) Named after Euphorbus, physician to King Juba of Mauritania (Euphorbiaceae). A genus of about a thousand species, widely distributed, mainly in temperate regions, showing immense diversity of form and requirements. They include annual, biennial […]

How to grow Erysimum Erysimum (er-is-im-um) From the Greek erus, to draw up; some species are said to produce blisters (Cruciferae). Alpine wallflower. Hardy annual, biennial and perennial plants, closely related to Cheiranthus. Some are rather weedy, but others make […]

How to grow Eryngium From the ancient Greek name eryngeon, the meaning of which is obscure (Urnbelliferae). A genus of over 200 species of hardy and nearly hardy perennial herbaceous plants, some with thistle-like leaves. Some species are seaside plants […]

How to grow Echinacea Echinacea (ek-in-ay-se-a) From the Greek echinos, hedgehog, referring to the whorl of prickly, pointed bracts close beneath the flower head (Compositae). A genus of two North American species of hardy herbaceousperennial plants. Echinacea plants E. angustifolia […]