Helichrysum – Perennial Plant, How to grow

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. Some are commonly dried as everlasting flowers. Not all are hardy. Perennial species cultivated H. arenarium, yellow everlasting 6-12 inches, […]

Heliopsis – Perennial Plant, How to grow

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 ; useful for cutting from July onwards. Species cultivated H. helianthoides (syn. H. laevis), North American ox-eye, 3-6 feet, rich yellow […]

Helxine – Perennial Plant, How to grow

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 from Corsica, H. soleirolii, a nearly hardy creeping perennial with insignificant flowers, grown for its attractive tiny, bright green leaves. […]

Hemerocallis (day lilly)- Perennial Plant, How to grow

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 many weeks, but with the individual funnel-shaped flowers lasting only for one day. There have been a bewildering number of […]

Hepatica – Perennial Plant, How to grow

How to grow Hepatica Hepatica (he-pat-ik-a) From the Greek hepar, liver, from a supposed resemblance of the leaves to that organ (Ranunculaceae). A genus of three or four species of low-growing hardy perennials, sometimes included in the genus Anemone and growing wild in woodlands over the whole of the north temperate zone. Species cultivated H. americana (syns. H. triloba, Anemone […]

Heracleum – Perennial Plant, How to grow

How to grow Heracleum Heracleum (her-ak-le-um) Named after Hercules who is said to have discovered the plants medicinal uses, or after heracles, a plant dedicated to Hercules ( Umbelliferae). Cow parsnip. Vigorous and coarse-growing hardy perennials suitable for the wilder parts of the garden. Two species are natives of Great Britain. Species cultivated H. mantegazzianum, 7-9 feet, small white flowers […]

Hesperis – Perennial Plant, How to grow

How to grow Hesperis Hesperis (hes-per-is) From the Greek hesperos, evening, when the flowers of some species become fragrant (Cruciferae). A genus of hardy plants including biennial and perennial species. Similar in form to Matthiola and Cheiranthus, and native to Europe and W. and N. Asia. Perennial species cultivated H. matronalis, sweet rocket, dame’s violet, dame’s rocket, 2-3 feet, flowers […]

Gazania – Perennial Plant, How to grow

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 species hybridize freely and gazanias have been much improved in recent years; seed is offered in red and orange shades […]

Echinacea – Perennial Plant, How to grow

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 herbaceous perennial plants. Species cultivated E. angustifolia (syn. Rudbeckia angustifolia), 2-3 feet, purplish red, summer. E. purpurea (syn. Rudbeckia purpurea), purple coneflower, 3-4 feet, purplish-red, August. […]

Eryngium – Perennial Plant, How to grow

How to grow Eryngium Eryngium (er-in-je-um) 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 in the wild. All are more or less spiny and in some species a feature is the glistening, […]