
You can begin with a super basic model of some plastic or an old window frame placed over a square layout of straw bales or construct a small wooden frame.
If you don't want to build your own from scratch, there are plenty of kits available for everything from the smallest cold frame to the largest commercial greenhouse.
Green House Tips:
Location
Make sure you locate your greenhouse in a level area that gets full sun. If it can be protected from the prevailing wind, so much the better.
Water
In warm, sunny weather you will need to water everyday.
Ventilation
Make sure it is properly ventilated to prevent mold and algae from developing in your greenhouse.
Build a Greenhouse for under $25
Traditional Greenhouses