Will this minigreenhouse let me start tomatoes early?

At our house, we used one of the cheapy plastic greenhouses that you can buy at wal-Mart or K-Mart. It worked just great. No problem and it worked as well as my gl greenhouse. The only concern is that there is enough room to put a small heater in the greenhouse. If temperatures are going to plummet, you need a small heater that will not sit against the plastic and will not overheat the plastic. We have a small heater and could put it right in the middle of the plastic house on the ground. So go ahead and try it. We did have to use the heater because we are in Northern Michigan. If you are only starting tomatoes, size will not be a problem. My tomato plants are only about 8 inches high when they go into the ground. If you are trying to grow full blown large plants, this will not do. For a starter it is fine. Allow enough space between plants so that they are not crowding each other. Leave enough space for the tomatoes toget 8 to 10 inches high.