Build an up-cycled greenhouse for nearly nothing by using old plastic bottles. Not only will people be glad to donate theirs to you, it won't cost you hundreds of dollars in greenhouse plastic just to keep the bugs out.
Bonus! It lets the breeze and rain in!
![](https://static.wixstatic.com/media/1b4236_2b049f5dfd9a48c6919b844ebd56759b~mv2.jpg/v1/fill/w_980,h_552,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/1b4236_2b049f5dfd9a48c6919b844ebd56759b~mv2.jpg)