Re: [IGSROBIN] Heat box for starting cuttings
Its not all that hard to do a heat box, but do you really need to? In San
Diego you will have warm enough temps to root about anything.
However, if you insist. The coils are waterproof, so no worry about
watering them. Pearlite is ok, although I like sand and vermiculite better.
Build the boxes out of 1 x 4 cedar, or other wood. Pallet lumber works
fine. Put the coils in at the bottom, add the planting mixture at about 4"
deep, water well, and put in the cuttings. I only run the heat when the
air temp is less than 60 degrees F.
When you put in the coils just snake them around to cover the bottem evenly.
From: Cynthia S. Lohry <Hedgehug@AOL.COM>
To: IGSROBIN@MAELSTROM.STJOHNS.EDU <IGSROBIN@MAELSTROM.STJOHNS.EDU>
Date: Monday, February 15, 1999 9:56 AM
Subject: Re: Heat box for starting cuttings
>Does anyone have experience with, or tips to offer on building a box to
>contain electric soil heating cables to provide bottom heat for starting
>cuttings? I have a 12 foot cable which should heat a 3 square foot area,
>a 6 foot cable to heat a 1.5 square foot area. The directions for building
>said box appear to be in Japanese.
>Can I use perlite inside the box to facilitate easy removal of the rooted
>How do you plan to keep the electric cord from getting wet when you water