Glass Jar Greenhouse

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Introduction: Glass Jar Greenhouse

1. Build a wooden frame - I used 10x10cm fence posts.

2. Collect a lot of glass jars - I asked my office canteen to save their empty jars for me.

3. Stack the jars with the open end inwards inside the wooden frame.

4. Fill the gaps between the jars with moss - depending on where you live you may want to spray the moss with water.

5. (optional) I tiled the floor with the lids from my jars.

6. (optional) big jars make great seedling starters (mini greenhouses)

7. (optional) collect rain water in a jar and siphon it into plants. (see photo)

8. Roof - I am still looking for a really good solution, first i just had a sheet of plastic stapled on. My second attempt was with some termo plastic sheeting - this looks better than tarpaulin and it insulates better but not easy to find as a recyclable material... I think perhaps a "green roof" (grass/living roof) would be optimal. then perhaps use some jars or bottles as skylights... but I dont have a good solution for actually building such a construction (yet)

Step 1: 1. the Wooden Frame

I used 10cm x 10cm "fence" posts ... 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.

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.

Step 2: 2. Glasses

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.

Step 3: Rain Collection

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

I am working on an updated system ... coming soon !

Step 4: Floor Tiles

I mixed some fine gravel and a bag of cement (no water) - I spread the mixture on the floor about 1cm deep.

I then pressed in the lids, trying not to think about the order and colours. (I like the random look)

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

tip - 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.

Step 5: One Year Later

I made some wooden gutters (2 planks glued together),.

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    81 Comments

    0
    DanielleC7
    DanielleC7

    8 months ago

    So after a few years, how if your greenhouse holding up?

    I am thinking of building one but I am wondering how the heat is retained as I live in a very cold climate.

    Im also wondering of ways to hold them together since we also have a lot of wind.

    Thanks!

    0
    KickAss2k1
    KickAss2k1

    7 years ago on Introduction

    Just an idea, but what if the jars were left filled with water and capped? Would that act like an insulator - keeping temps from dropping too low at night, and cooler during the day - much more of a consistent temp inside? Anyone tried it?

    0
    DanielleC7
    DanielleC7

    Reply 8 months ago

    My guess is that could make a complete mess if they ever freeze haha

    0
    diy_bloke
    diy_bloke

    2 years ago

    Not sure how effective it is but it looks great

    0
    beaskywalk
    beaskywalk

    3 years ago on Step 5

    Great idea and beautifully implemented! I especially like the detail of a 3D print together with upcycling og quite basic materials.

    0
    laruebridge
    laruebridge

    4 years ago

    Love your creativity, this is so artsy looking. That colorful floor makes me smile :).

    0
    dklafe
    dklafe

    Reply 3 years ago

    Thank you, makes me smile too

    0
    Kitsana_d
    Kitsana_d

    Question 3 years ago

    I'm Zone 5 in the US. How did yours fair overwinter?

    0
    dklafe
    dklafe

    Answer 3 years ago

    A few of the jars cracked .. but they are easy to replace.

    0
    parisusa
    parisusa

    6 years ago

    Art + Gardening. Love it

    0
    dklafe
    dklafe

    Reply 6 years ago

    :) thanks

    0
    tinettecooper
    tinettecooper

    6 years ago

    Wax or paraffin to hold the bottles tight. But I guess heat would be an issue.

    0
    Mirime
    Mirime

    7 years ago on Introduction

    This is a great idea! It reminds me of the cordwood building popular in parts of the US. If I can suggest for the roof, use the plastic signs politicians use for their campaigns. Just shingle them on and voila a cheep and nice roof. My father saw one farmer that used them to roof his chicken barns with them, he would go the losing candidates and get the signs for free. However I have one concern about the heat retention of the walls. With the gaps between the jars filled in with just moss how warm would it stay in the winter?

    0
    Olmez47
    Olmez47

    7 years ago

    Great job, absolutely love it

    0
    dklafe
    dklafe

    Reply 7 years ago on Introduction

    Thank you.
    Which finals ? :) I am new here and have not fully understood exactly what I have enrolled in.

    Regards,
    Lars Felding

    0
    Tarun Upadhyaya
    Tarun Upadhyaya

    Reply 7 years ago on Introduction

    For being a finalist in the Reuse Contest. Usually you get notified via email if you are a finalist in a contest but lately those notifications are not coming often.

    0
    Ronyon
    Ronyon

    7 years ago on Introduction

    I love what you did here.

    I would like to try it myself , maybe utilizing this:

    https://www.instructables.com/id/How-to-use-a-wet-tile-saw-to-cut-glass-bottles/?ALLSTEPS