Hide-Bound

See Bark-bound.

Hieracium

One hundred and nineteen species. Chiefly hardy herbaceous. H. glutinosum is an annual. Seed in the open soil. The others by division in light soil.

Hillia

Two species. Stove evergreen shrubs. Cuttings. Turfy loam and sand.

Hippeastrum

Two species. Stove bulbs. Offsets. Turfy loam and peat.

Hippion

Three species. Greenhouse biennials. Seed. Light rich soil.

Hippocrepis

Nine species. Hardy perennial trailers and annuals. Cuttings or seed. Sandy loam and peat.

Hippophae

Four species. Hardy trees. Layers or cuttings. Common soil.

Hiraea

Four species. Stove evergreen climbers. Cuttings. Sandy loam and peat.

Hoitzia

Three species. Greenhouse evergreen shrubs. Cuttings. Sandy loam and peat.

Hollyhock

Hollyhock (Althoea rosea). There is also a sub-species. A. R. Biloba. This flower has lately gained the attention from florists it deserves; and there are now many varieties. Dr. Lindley justly observes that, "the hollyhock is little more than a biennial, and frequently dies suddenly if sown too early in the first season, or if allowed to remain long in the seed-bed before transplanting; therefore the best way to keep them in health is not to sow them before June, and when large enough to transplant them singly where they are to remain and flower in the following season: afterwards cut them down as soon as they have done flowering, and remove them to a fresh situation, where the ground has been well manured, before winter. By continuing this treatment you may keep the same variety for years." - Gard. Chron.

Homeria

Ten species. Greenhouse bulbs. Offsets. Loam, peat, and sand.

Honesty

Lunaria.

Honey-Berry

Melicocca.

Honey-Dew

See Extravasated Sap.

Honey-Flower

Melianthus.

Honey-Garlic

Nectaroscordum.

Honeywort

Cerinthe.

Hoop-Petticoat

Narcissus bul-bocodium.

Hop-Hornbeam

Phologophora.

Horehound

Marrubium.

Horkellia

Two species. Hardy herbaceous. Seed and division. Common soil.

Horminum

Horminum pyrenaicum. Hardy herbaceous. Seed and division. Common soil.

Horn

See Animal Matters.

Hornbeam

Carpinus.

Horn-Of-Plenty

Fedia.

Horn-Poppy

Glaucium.

Horse-Chestnut Moth

See Bombyx.

Horse-Radish Tree

Moringa.

Horse-Thistle

Cirsium.

Hosackia

Four species. Hardy herbaceous. Division and seed. Common soil.

Hose-In-Hose

Hose-In-Hose is a form of double flowers, when one corolla is inserted within the other, as is frequently the case with the primrose.

Hosta

Three species. Stove evergreen shrubs. Cuttings. Peat and loam.

Hot-House

See Stove.

Hottentot Cherry

Cassine maurocenia.

Hottentot-Fig

Mesembry-anthemum edule.

Hottonia

Hottonia palitstris. Hardy aquatic. Division. Still water.

Hound's-Tongue

Cynoglossum.

Houseleek

Sempervum.

Houstonia

Five species. Hardy herbaceous. Division. Peat.

Hovea

Sixteen species. Greenhouse evergreen shrubs. Young cuttings. Sandy loam and peat.

Hovenia

Two species. Greenhouse evergreen trees. Ripe cuttings. Loam and peat.

Hoya

Eight species. Stove evergreen twiners. Cuttings. Light loam and peat.