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hairmetal4ever

permanent heating cables for a greenhouse raised bed

hairmetal4ever
19 years ago

I am designing a greenhouse-and will be growing some citrus and subtropicals in there. I was probably going to use a 16' X 2.5' raised bed about 24" deep or so to plant the citrus trees in-and wanted to know if there is a soil heating cable that can warm that deep and long of a volume of soil and remain permanently in the soil-either buried right in the dirt or under the bed. Citrus roots need to stay at 65 or warmer and they will be cooler than that in the winer in the GH without some help.

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