I put a thermometer under the tent today. It was sunny all day and the temp inside was +6C, with the outside air temp 0C. So I guess it was working. There was liquid condensation on the inside of the plastic. Still, planting seems a long way off. The
onion plants arrived today. Nice big bunches.
As an experiment, my boss ordered plants from Johnny's Seeds and I ordered the same from Dixondale farms. By a miracle, we each received our shipments on the same day. Johnny's is in Maine, but of course the onion plants aren't grown there this time of year. He checked where the drop-ship came from and would you believe?! Dixondale!! So much for the experiment. And get this, Johnny's charged $16/bunch, while Dixondale direct only charged $6/bunch delivered. It pays to cut out the middle-man.