This is my very first time posting a question and I have seen some other posts related to my query on here. Basically I'm very new to gardening and I'm wondering what the difference is between a coldframe and a greenhouse. Or maybe there is no difference, it's just down to personal preference? I would like something to put seeds out over the winter, as I have little space in the house. I also have limited psace in the garden so need something comact. Your advice would be greatly received.