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Micro Greenhouses: How To Make A Pop Bottle Greenhouse

Micro Greenhouses: How To Make A Pop Bottle Greenhouse


By: Amy Grant

If you’re looking for a super fun yet educational project for the little ones, creating a 2-liter bottle greenhouse fits the bill. Heck, making a soda bottle greenhouse is fun for adults too! Read on to see how to make a pop bottle greenhouse.

How to Make a Pop Bottle Greenhouse

Pop bottle greenhouse instruction couldn’t be simpler. These micro greenhouses can be made with one or two soda bottles with the labels removed. All you need to begin is:

  • One or two empty 2-liter soda bottles (or water bottles) that have been thoroughly washed and dried
  • A craft knife or sharp scissors
  • Potting soil
  • Seeds
  • A plate to put the soda bottle greenhouse on to catch any drips.

Seeds can be veggie, fruit or flower. You can even plant “free” seeds from your own kitchen pantry. Dried beans and peas can be used, as well as tomato or citrus seeds. These seeds may be hybrid varieties, however, so they may not turn into a replica of the parent but they’re still fun to grow.

The first step to pop bottle greenhouse instruction is cutting the bottle. Of course, this should be done by a grown-up if your kids are little. If using one bottle, cut the bottle in half so the bottom piece is deep enough to hold the soil and plants. Poke a few holes in the bottom of the bottle for drainage. The top half of the bottle will be the top of the micro greenhouse with the cap on.

You can also use two bottles with one bottle cut 4” high to create the bottom and base and the 2nd bottle cut 9” high for the lid or top of the greenhouse. Again, poke a few holes in the base piece.

Now you’re ready to finish creating your 2-liter soda bottle greenhouse. Simply have your child fill the container with soil and plant the seeds. Water the seeds in lightly and replace the lid atop the soda bottle greenhouse. Put your new mini greenhouse on a plate and put it in a sunny spot. The lid will retain moisture and heat so the seeds will sprout quickly.

Depending on the type of seed, they should sprout within 2-5 days. Keep the seedlings moist until it is time to plant them in the garden.

Once you transplant the seedlings, reuse the bottle greenhouse to start some more. This project teaches kids how their food is grown and allows them to watch all the stages a plant goes through before it finally becomes food on their plates. It is also a lesson in re-purposing or recycling, another lesson good for planet Earth.

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I saw how others were growing tomatoes upside-down in soda bottles. That gave me the idea of using soda bottles to grow other vegetables right-side-up that like to climb supports. Growing peas this way seemed like a good idea. The supporting lines for the bottles would support the growth of the peas. So start digging out those bottles from your recycling bin and lets get to work.


Hydroponic Gardens: A Great Experiment For Kids

As a kid, I remember growing a bean plant in school. It was 3 rd grade and I vaguely remember the lessons that the teacher was trying to convey…but if you asked me for details today, I wouldn’t be able to tell you any. Looking back, this was for a few reasons:

  1. I didn’t connect growing the plant to growing food
  2. I didn’t see the final product (we didn’t grow the plant to the point where it produced new beans)
  3. It just wasn’t that cool – it was a bean in a cup with some of that old green foam they use for floral arrangements (you know the kind)

For this tutorial, I wanted to put together a guide that solves all three of those problems for your child…something I would have loved back in third grade!


How to Make a Mini Greenhouse

Last Updated: August 21, 2020 References

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Get your seedlings off to a flying start by building a cheap, easy greenhouse. You can make a single plant greenhouse or one that will hold multiple plants. This is a great way to make a practical or decorative addition to the greenery in your home.

u00a9 2021 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is not licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.

u00a9 2021 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is not licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.

u00a9 2021 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is not licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.

u00a9 2021 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is not licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.


How to Plant Seeds in a 2 Liter Bottle

Starting plants from seeds provides an inexpensive option for adding plants to the garden. Whether you are growing flowers or vegetables, using recycled containers for seed-starting saves even more money. Readily available 2-liter bottles have an added benefit as a seed-starting container. The top of the bottle acts as a greenhouse, helping provide the right conditions for successful germination and early seedling growth. Re-use the prepared bottles each year or make new 2-liter seed pots from a fresh supply of bottles.

Peel the label off the bottle. Rinse the bottle in hot water to remove any soda residue, then rinse the bottle in a sterilizing solution of one part bleach combined with nine parts water.

  • Starting plants from seeds provides an inexpensive option for adding plants to the garden.
  • Readily available 2-liter bottles have an added benefit as a seed-starting container.

Mark the bottle one-third of its length up the side. Cut the bottle in two at this point with a utility knife or pair of scissors.

Poke two to three small holes in the bottom of the bottle with the point of the scissors. The holes provide drainage so the soil doesn't become waterlogged.

Fill the bottom part of the bottle with moist potting soil. Leave a ½-inch space between the top of the soil and the edge of the bottle bottom.

Sow the seeds in the soil. Plant them at a depth twice the seed's width and space the seeds 1 to 2 inches apart in the bottle.

  • Mark the bottle one-third of its length up the side.
  • Poke two to three small holes in the bottom of the bottle with the point of the scissors.

Slide the top of the bottle onto the bottom of the bottle. Cut a 1-inch slit in the side of the bottle bottom so it is easier to slide the top back on if necessary. Leave the lid in place at the top of the bottle.

Place the bottle in a 65- to 75-degree Fahrenheit room to germinate. Most seeds do not require light to sprout, but locate the bottle in a brightly lit location that isn't in direct sun if light is indicated on the seed packet.

Remove the lid from the bottle top once the seeds sprout and move the bottle to a sunny location. Remove the top of the bottle completely when the seedlings are large enough to touch the plastic.

  • Slide the top of the bottle onto the bottom of the bottle.
  • Remove the lid from the bottle top once the seeds sprout and move the bottle to a sunny location.

Use a smaller soda bottle for planting only one or two seeds at a time.

Save the bottle tops and use them to protect plants from late frosts in the garden after you transplant the seedlings outdoors.


  • Post author:Team Ideas24
  • Post published: October 8, 2015
  • Post category:Recycled
  • Post comments:1 Comment

Want to have a small greenhouse in your yard to grow some veggies? Then use plastic bottles to build one! Not only are you keeping construction expenses to a minimum, you are also helping save the environment.

To build a large-sized greenhouse, you’ll need around 1,500 pieces of 2-litre plastic bottles. Can you imagine how much waste you’re already keeping away from nature with just a single greenhouse project? It surely is a great recycling idea for plastic bottles!

Now it might not look like a very strong and effective structure to some, but many DIY-ers have already built their own plastic bottle greenhouse. And still, this project is continually being shared by different people and organizations in their community. Now that’s a good sign that this idea definitely works in many places around the world!

If you think this greenhouse idea is perfect for you, then it’s time to collect all those plastic bottles that you will need. :)

You’ll need these materials:

  • 1,500 Plastic Bottles (ideally 2-litre bottles)
  • 4 x 4″ treated Posts
  • 2 x 2″ treated Timber
  • Garden Canes
  • Cement Mix
  • 4″ and 3″ Screws
  • Fencing Staples
  • Gravel, Slabs, Mulch Matting
  • Bucket
  • Soap
  • Water
  • Hinges

And these tools:

  • Measuring Tape
  • Scissors
  • Trowel
  • Hammer
  • Cordless Drill
  • Spirit Level
  • Mitre Block
  • Spade
  • Pinch Bar
  • Step Ladder

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You can get step-by-step instructions from REAP over here

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DIY Seed Starter Greenhouse

What You’ll Need:

  • Empty 2 Liter Bottle, cleaned and rinsed out
  • Sharp Scissors
  • Plastic Wrap
  • Rubber Band
  • Potting Soil
  • Seeds

What You’ll Do:

  1. Rinse and throughly clean out an empty 2 Liter Bottle.
  2. Using scissors, cut 2 Liter bottle in half horizontally.
  3. Grab the bottom half of the 2 Liter Bottle and cut a 1 inch deep v-shaped notch into the rim. (See Photo Above)
  4. Using plastic wrap, fold a piece into an approx. 3 inch square with 2 layers thick.
  5. Unscrew the bottle lid and fasten the plastic wrap square over the top of the bottle with a rubber band.
  6. Poke several air holes into the plastic wrap using a fork.
  7. Fill bottom half of your 2 Liter bottle with potting soil.
  8. Plant your seeds and add just enough water until soil is moist.
  9. Using your thumb, press in on the v-shaped notch and place the top of the 2 Liter bottle over the bottom. (If the top doesn’t fit over the bottom try making your v-shaped notch bigger)
  10. Place 2 Liter Bottle Greenhouse in a warm area of your home that gets plenty of bright filtered daylight.
  11. There is no need to water your seeds… the moisture in the soil and additional moisture from the greenhouse above will keep the soil moist.
  12. Watch your seeds grow, and once your seedlings are well established and ready, you can begin hardening them off to prepare them for transplanting outside!

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