Can any one direct me towards some instructions for a propagation bench.

So far I have constructed a 6' x 2' x 6" deep bench and ordered a 20 ft soil
warming cable and a rod thermostat.

I was wondering about lining the bottom with a sheet of polystyrene, with
drainage hoiles of course.

Was then gouing to use horticultural grit. Not sure of the depth of grit
abovre and below the cable?

Trevor




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