Hi there!! Where are you?? What are your winters like??

I'll second that question: where do you live?

If anywhere with real winter weather- meaning below freezing, with north winds, snow and sleet, you could wrap it in heavy plastic to try to cut some of the wind chill effects, but the cost of energy to heat it will end up being greater than what you paid for it and still risk losing it to weather. It simply wasn't designed to withstand the rigors of a real winter, but as a season extender for spring and fall, to be taken down and stored over winter.

i live in Portland,OR it doesn't get below freezsing except a couple weeks out of the year

Ah, Portland. Rain & roses. Lucky you.

With your climate, you could use a solar pool cover and get quite a bit of cold protection. But easier than jugs of water and a lot more reliabe, would be an electric heater with a plug-in thermostat.

darkruler

It would be better for the plants and more economical to buy a few cheap 4' fluorescent fixtures and prop them up on bricks or books for your plants and keep them indoors. Even a dark but not freezing attic or basement would work. Keep the bulbs at least 2" above the plants.

well the thing is i have lots of plants probably 50-100 plants almost all tropical.i was hoping to get some out there to give me more light for my other plants while having some outside too.i have been thinking about buying a hfgh anyways