bottom heat

heat artificially applied to a container in which plants are grown in order to induce their germination, rooting, or growth.

Origin of bottom heat

First recorded in 1880–85

It is generally budded on an orange or lemon tree and plunged in a bottom-heat.

Gardening for the Million |Alfred Pink
Cuttings of the young wood planted in sand, and having a bottom-heat, will strike.

Gardening for the Million |Alfred Pink
It requires to be grown in loam and peat, and may be increased by cuttings planted in sand, under glass, in a bottom-heat.

Gardening for the Million |Alfred Pink
Place them in a frame with bottom-heat, and water and syringe them moderately while they are growing.

Gardening for the Million |Alfred Pink

It grows well in peat and loam, and is increased by seed or by cuttings of the young shoots in spring in bottom-heat.

Gardening for the Million |Alfred Pink