Greenhouse: Best greenhouse for the money, 1 by JimKennard

JimKennard wrote:
For those of you in cold climates - even up into Canada - you can make the greenhouse very weather-tight and inexpensive to heat by using dual or triple-wall polycarbonate on the outside, and then lining the inside of the greenhouse with 6-mil greenhouse plastic.

Another "trick" is to start your seeds in a smaller "greenhouse" within the greenhouse. section off a small portion with plastic and put the heater in that. An area large enough for 4-6 flats can get an awful lot of vegetables growing with little heat wasted.

Once they are up and growing, they need less heat than they do for germinating.

The picture is a large greenhouse of the Mittleider design at 54 degrees North latitude in Russia. Anyone care for tomatoes?

Jim Kennard