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bottom heat

noun, Horticulture
heat artificially applied to a container in which plants are grown in order to induce their germination, rooting, or growth.
Origin of bottom heat
1880-85 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bottom heat
  • Treatments will include top vs bottom heat and natural gas vs diesel fuel.
  • bottom heat may aid germination, which will occur in about a week.
  • Use fresh manures only as bottom heat, manure teas for nutrients.
  • Softwood cuttings taken in spring may be treated with a rooting hormone and grown under mist with bottom heat.
  • Mist benches and bottom heat may also improve rooting.

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