35 Great and Cheap DIY Greenhouse Projects Ideas

31 Umbrella Greenhouse

31. Umbrella Greenhouse (via Garden Therapy)

32 Soda Pop Greenhouse

32. Soda Pop Greenhouse (via Poppytalk)

33 Hoop Style Greenhouse

33. Hoop Style Greenhouse: How to build an inexpensive 12 by 32 foot hoop-style greenhouse made from pvc pipe for under $400 (via Alberta Home Gardening)

34 Fold Down Greenhouse

34. Fold Down Greenhouse: This DIY fold-down greenhouse made of PVC pipe and plastic, folds down to protect plants during cold snaps, then can be raised up on warmer days. (via Bonnie Plants)

35 Plastic Bottle Greenhouse

35. Plastic Bottle Greenhouse: Recycling plastic bottles are all the rage, and what better way to make use of them, than by building yourself a greenhouse? How to build a greenhouse made from plastic bottles will give you some idea of how it is done. (via Hubpages)