bottom heat

American  

noun

Horticulture.

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

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Etymology

Origin of bottom heat

First recorded in 1880–85

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Example Sentences

See Examples For:

bottom heat

Pepper seeds may take two weeks to germinate without bottom heat to the seed tray.

From Washington Post ● Mar. 2, 2021

A batch of last year’s young Fuchsias, Erythrinas, and Salvia patens, to be shaken out, repotted, and placed in bottom heat.

From In-Door Gardening for Every Week in the Year Showing the Most Successful Treatment for all Plants Cultivated in the Greenhouse, Conservatory, Stove, Pit, Orchid, and Forcing-house by William Keane

There is no bottom heat of any kind, but it is a great deal warmer than the open soil, and serves a variety of purposes.

From Farm Gardening with Hints on Cheap Manuring Quick Cash Crops and How to Grow Them by Anonymous

Achimenes.—Place the tubers thickly in pans, to be potted singly as they appear, in equal portions of leaf mould and sandy loam; to be started into growth in a moderate bottom heat.

From In-Door Gardening for Every Week in the Year Showing the Most Successful Treatment for all Plants Cultivated in the Greenhouse, Conservatory, Stove, Pit, Orchid, and Forcing-house by William Keane

Pines.—Be watchful about the bottom heat, and lose no time in raising the pots nearer to the surface if an approach to a burning temperature is apprehended.

From In-Door Gardening for Every Week in the Year Showing the Most Successful Treatment for all Plants Cultivated in the Greenhouse, Conservatory, Stove, Pit, Orchid, and Forcing-house by William Keane

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