I'm 100% new to this and I have very limited room in my yard. It's about 15' x 10' so I was thinking of getting one of these to grow my plants in. I'm thinking the winter nights are too cold here in Delaware to just leave the plant outside otherwise I would. Or am I just being over cautious and I don't need it at all? My first plants will be 2 VFTs if that can help answer my question.