Hedera

Ivy. Two species and several varieties. Hardy evergreen climbers. Slips. Common soil.

Hedwigia

Hedwigia balsamifera. Stove evergreen tree. Cuttings. Sandy loam and peat.

Hedychium

Twenty-two species. Stove herbaceous. Division. Light rich soil.

Hedysarum

Twenty species. Hardy herbaceous. Division or seed. Sandy loam and peat.

Heimia

Three species. Half-hardy evergreen shrubs. Cuttings. Sandy loam and peat.

Helenium

Eight species. Hardy herbaceous. Division or seed. Common soil.

Helianthemum

One hundred and twenty-one species. Chiefly hardy and half-hardy shrubs or trailers. Cuttings and seed. Sandy loam and peat.

Helianthus

Thirty-four species. Hardy herbaceous and annual. Seed. Common soil. See Sunflower and Jerusalem Artichoke. 19

Heliocarpus

Heliocarpus americanus. Stove evergreen shrub. Cuttings. Sandy loam and peat.

Heliophila

Twenty-three species. Hardy annuals and green-house evergreen shrubs. Seeds or cuttings. Sandy loam and peat.

Heliopsis

Three species. Hardy herbaceous. Division. Common soil.

Herbary

Herbary was a department of the garden formerly much more cultivated than at present, when the more potent medicinal plants of hotter climates are so easily procurable. The following is a list of the tenants of the herbary, the appropriate cultivation of which will be found under their particular titles: -

Angelica.

Balm.

Basil.

Blessed Thistle.

Borage.

Burnet.

Caraway.

Chamomile.

Chervil.

Coriander.

Dill.

Hyssop.

Lavender.

Liquorice.

Marigold.

Marjoram.

Mint.

Pennyroyal.

Peppermint.

Purslane.

Rue.

Sage.

Savory.

Scurvy Grass.

Tansy.

Tarragon.

Thyme.

Wormwood.

Hkrbhrtia

Hkrbhrtia pulchella. Half-hardy bulb. Seed. Sandv loam and peat.

Herb-Grace

"See Rue.

Hercules-Club

Xanthoxylum clava Herculis.

Hermannia

Forty species. Green-house evergreen shrubs. Cuttings. Light rich soil.

Hermixii'M

Three species. Hardy and half-hardy orchids. Division. Chalk and peat.

Heron's-Bill

Erodium.

Herpestis

Three species. Aquatic perennials, stove or hardy. Seed or division. Rich light soil.

Herreria

Two species. Stove evergreen twiners. Division. Loam and peat.

Hesperantha

Six species. Green-house bulbs. Offsets. Sand, Loam, and peat.

Hesperis

Rocket. Fifteen species, besides varieties. Hardy herbaceous and annual. Division or seed. Rich light soil.

Hesperoscordum

Two species. Hardy bulbs. Offsets. Sandy soil.

Heteranthera

Three species. Aquatics, stove, green-house, and hardy. Division. Sandy soil, in water.

Heteropteris

Eight species. Chiefly stove evergreen climbers. Cuttings. Sand, peat, and loam.

Heuchera

Nine species. Hardy herbaceous. Division. Light soil.

Hibbertia

Ten species. Greenhouse evergreen shrubs and twiners. Cuttings. Sandy loam and peat.

Hibiscus

Sixty-nine species, besides varieties. Some annual and biennial, but chiefly perennials, both hardy and tender. Mr. Paxton says, "the shrubby stove and green-house kinds all grow from cuttings, and thrive in loam and peat. H. syriacus, from layers or seed, in common soil. The hardy herbaceous kinds require a moist soil." - Bot. Dict.