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

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

Shake out and repot in succession the stove plants that have been previously recommended to be headed back, and encourage a free growth by plunging them, if possible, 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

Melons.—Keep up a good bottom heat when the fruit is setting.

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

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

Autumn cuttings are taken during August and September, and are made from the partially ripened growths of the current year, inserted in sandy soil, in a close frame, without bottom heat.

From Trees and Shrubs for English Gardens by Ernest Thomas Cook