Haemadictyon

Haemadictyon venosum. Stove evergreen twiner. Cuttings. Loam and peat.

Haemanthus

Twenty-one species. Green-house bulbs. Offsets. Sandy loam and peat.

Haemilis

See Tinea.

Haemodorum

Two species. Green-house herbaceous. Division. Loam and peat.

Ha-Ha

Ha-Ha, is a sunk fence, being placed at the bottom of a deep and spreading ditch, either to avoid any interruption to an expanse of surface, or to let in a desired prospect. As all deceptions are unsatisfactory to good taste, and as when viewed lengthwise these fences are formal and displeasing, they ought never to be adopted except in extreme cases.

Hair

See Animal Matters.

Hakea

Forty-eight species. Green-house evergreen shrubs. Cuttings. Loam, peat, and sand.

Halesia

Snowdrop Tree. Three species. Hardy deciduous shrubs. Cuttings and layers. Common soil.

Halimodendron

Three species. Hardy deciduous shrubs. Layers and seeds, or grafts on Robinia. Sandy loam.

Halleria

Two species. Greenhouse evergreen shrubs. Cuttings. Rich sandy loam.

Haltica

See Black Fly.

Hamamelis

Witch Hazel. Two species. Hardy deciduous trees. Layers. Common soil.

Hamburgh Parsley

See Parsley (Hamburgh).

Hamelia

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

Hamiltonia

Two species. Stove evergreen shrubs. Cuttings. Loam and peat.

Hanbury

See Ambury.

Handbarrow

Handbarrow is best made of this form: -

Fig. 77.

The cage below is useful for carrying leaves and other litter; and when the close moveable cover is on, it serves as a conveyance for plants in large pots or tubs, which, when in flower or bearing fruit, might be too violently shaken in a wheelbarrow.

Hand-Glass

Hand-Glass is a portable glass-case used for sheltering cauliflowers and other plants in winter, and during early spring, or to retain a regular supply of moisture to cuttings until they are rooted. The most durable and convenient are made with cast iron framing of this form: -

Fig. 78.

They are sometimes made with moveable tops as here represented, but the only advantage it affords is, that several of the lower portions may be placed upon each other to protect any tall growing shrub in severe weather, otherwise they are more troublesome to move, and more liable to breakage than if made entire.

Hand-Weeding

Hand-Weeding: much of it might be banished from the garden, if in the kitchen department all crops were inserted in drills. This is most desirable; for the stirring of the surface consequent to hoeing, is much more beneficial to the crops, and cannot be repeated too frequently.

Hapalostephium

Eight species. Hardy herbaceous. Division and seed. Sandy rich soil.

Hardy Plants

Hardy Plants are those which endure uninjured our seasons without protection. Half-hardy Plants are those which require a temporary protection during the colder portions of the year.