We bought 6 acres this year.... and while my first summer garden was started late, and with lots of beginner setbacks, well, we ate two wonderful watermelons the size of softballs, the deer really enjoyed all the orange tomatoes and jalapenos, and we got to eat 3 banana peppers, 1 zucchini, 1 blackberry, 2 tomatoes, and a bumper crop of very delicious small yellow onions. My fall garden is so far doing much better! (thanks to my neibor's graciously letting me clean up their horse pens for them this summer) So, My black thumb is turning a little grey-green now. My husband wants to build a greenhouse so we can have veggies in the winter......... so I got a couple silly questions; If vegetables need bees to pollenate...... what can be harvested inside a green house without adequete insects? Do I need to add some sort of heating device for the winter?? its mid-texas, we get to freezing a few times a winter. its texas...do I need to cool it in the summer? (100 degree days) Its been a wonderful experience gardening, and raising livestock... (my poultry has done a LOT better than the garden.. thanks to all y'alls help here) any good websites or things i should know would be greatly appreciated. Thanks very much.