Glass Jar Greenhouse

Glass Jar Greenhouse

Want to build a greenhouse in your backyard? If you have access to plentyĀ of glass jars, you can use them for a very cheap buildingĀ project!

Glass Jar Greenhouse

Start asking your friends and neighbours for empty jam jars. You can also askĀ yourĀ local restaurants and take-aways to keep bottles for you!Ā This greenhouseĀ costs almost nothing depending on the materials you already have. We’ve been collecting glass jars for quite sometime now without any purposeĀ in mind. When we came across this idea we’re glad we’re already halfway through getting enough glass jars for this greenhouseĀ project!

We think this is aĀ great idea since you can even use the largest glass jars to start some seeds — mini greenhouses inside a greenhouse!

The only thing missing inĀ this greenhouse is the permanent roof. If you were to build one, what roofing are you going to use?

Read on to see how DIY-erĀ dklafe built his glass jar greenhouse and share your ideas on howĀ itĀ can be further improved!

Would you like to build your own version of a glass jar greenhouse? :)

Materials:

  • 10 x 10cm Fence Posts
  • Glass Jars with Lids
  • Moss
  • Cement
  • Fine Gravel
  • Wheelbarrow
  • Door Hinges and Handle
  • Screen

Tools:

  • Shovel
  • Measuring Tape
  • Drill

 

Steps:

Glass Jar Greenhouse

I used 10cm x 10cm “fence” posts for the frame which worked out quite nicely with the average height of my glass jars.

My greenhouse is “free standing” but I guess it would be best to have some sort of foundation if building on grass – the final structure is quite heavy.

Glass Jar Greenhouse

It is important not to make the spaces between the posts – too large, stacking the glasses can be tricky – and if they are high up can be dangerous.

Glass Jar Greenhouse Glass Jar Greenhouse

My greenhouse is roughly 2m square – and when its finished will probably have used about 1000 jam jars. (and i have only filled 3 out of 4 walls). I asked all my neighbours and colleagues to bring me their jars. The canteen at work was also great for getting over sized jars – the big jars can have multiple uses.

Glass Jar Greenhouse

I 3D printed this adapter to collect rain water. The files are available from thingiverse.

Glass Jar Greenhouse

I mixed some fine gravel and a bag of cement (no water) – I spread the mixture on the floor about 1cm deep.Ā I then pressed in the lids, trying not to think about the order and colours. I like the random look.

Glass Jar Greenhouse

After a few days the gravel/cement mixture had absorbed moisture from the air and had set.

TIP:Ā I was amazed at how many lids were required to tile the floor. You might want to make sure you have enough lids before you start setting them in cement.

 

Thanks toĀ dklafeĀ for this great idea!

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