This project is a little bit more extreme and requires some patience. In order to make your own full-sized bottle greenhouse, you’re going to need hundreds, potentially thousands of plastic bottles. Preferably, these should be clear, but green ones also work. Start collecting as early as you can, and perhaps recruit some friends, family, or neighbours to donate their own finished plastic bottles.
It will be easier to use 5-litre bottles, but if you want to fill some gaps between your rows of bottles, smaller ones can also be used.
Wash your bottles and remove any labels. If you don’t remove the labels it isn’t going to negatively impact your greenhouse, but it makes it look a little tidier.
Next, cut the bottoms off of each bottle. Also, you won’t need the lids, so dispose of them responsibly or keep them aside for another project.
Then you should plan out the size of your greenhouse. The size will obviously impact how many bottles you need, so consider this and how quickly you want to be able to complete your greenhouse.
Making the greenhouse
Fix four wooden posts into the ground to become your corners. Most bottle greenhouses use wooden frames, but if you have some other materials that you can recycle rather than buying new ones, that will make your greenhouse even ‘greener’!
Then build the frames for three of your walls. This will consist of one short one and both long walls.
You should then make a frame measured for your roof also.
Thread your bottomless bottles onto garden stakes or canes, and then secure these with nails to your frames for your three walls and roof.
Secure your panels together either using the posts or corner brackets.
It is optional if you want to make a door. If you do so, use some hinges and a similar frame within which to fit your bottle canes.
This whole process will take time, but it is an original, eco-friendly, and affordable way to build a greenhouse to use at home!