Post a good thing that happened in your life today in Let's talk about pics Posted 1 hour ago 1 hour ago, Bryan said: Our greenhouse isn't properly insulated, but last year it dawned upon me that the north side of the house, against a fence, wasn't getting any direct light. I therefore used a spare length of the insulation that you use under laminate floors beneath the staging, and stuck heavy duty kitchen foil to the glass above the staging to reflect the light back into the growing space. I guess bubble wrap under the roof space would be the next step. Last year I tried to overwinter geraniums by digging them up, removing all of the soil, and storing them in the garage. Total failure, not one survived, while a plant that I left in the soil in a south facing border next to the house made it through the winter, as did the dahlias in the same location. Bryan, how did that work out with the foil?.. I bet you had a lot more light as well as the greenhouse being warmer too. I always used to dig up my dahlias and store the tubers in a cardboard box in the garage... for the most part, it was successful. Last year a couple got left in the ground and they came up this year, so I decided I`d leave them all in and mulch heavily over top... it`s getting to be way too much work to be lifting and dividing. If they don`t survive, so be it, but at one time I had 60 of them.. couldn`t bring myself not to save any. I know the roof of the greenhouse would be the most important part to insulate, as that`s where all the heat goes, but I just had enough bubble wrap for the sides... it took me 4 hours to put it in place so was kinda glad I didn`t have any more wrap for the roof... lol. I also have an incandescent light bulb I turn on when the temperature drops... I use an upside-down clay pot as a lamp shade which radiates a bit of heat.