Getting Started

Always use your imagination and be creative when building these kids crafts or science projects. It's your creation, so be inventive when looking for building supplies — you just may be surprised! When building your project, experiment with new and different ways of putting it together. The most important thing is to have fun!

greenhouse-supliesFind these or similar supplies!

  • Regular Masking Tape
  • Milk Carton ( Preferably a Half gallon)
  • Clear Plastic ( Bags or plastic rap)
  • Clear Tape
  • 4 flex Straws
  • 3 Straight Straw
  • 2 Pennies
  • Small Cups

1. Cutting your carton!

Place the carton down on a surface with the open side facing up. Using a ruler, measure and mark halfway points at each corner, like you see here. Next, use the ruler to draw a straight line from point to point all the way around the carton. By cutting on this line, you will create a perfectly even base for your greenhouse. Now cut your milk carton in half.



greenhouse-taped-straw2. Build the frame!

Start by carefully taping one flexible straw to each corner of your milk carton base. Make sure to keep the flex end towards the top. Tape the longer ends to the insides of your milk carton base.

3. Add the straws!

Now add your side and end straws by cutting a side straw so that it fits snugly in between the standing flex straws at the base. Then tape it in place up just under the flew area of the standing straws. Continue this all the way around. Now bend the flex straw tops inwards and tape your ridge straw on top. I left my ridge straw long and cut it after it was taped in place.

4. Cover your frame with plastic!

Carefully cut and tape plastic on all sides of the straw roof frame, leaving the front section untaped so you can get inside your greenhouse.




5. Find planting containers!

You can use lots of things for a planting container. Plastic party cups, styrofoam and even an old coffee mug will work. I used styrofoam cups for this greenhouse. They were a little too tall, so I trimmed off the top. You should poke some small holes in the bottom of your cups for drainage. This way your plants wont get too much water.

6. Add soil or dirt!

The best thing thing you can use is potting soil. See if there is a bag around. If not, you could use some from a house plant... you are only going to need a small amount. Or you can get some dirt from outside. If you decide to do this, try to get dirt that has no rocks, twigs, or other things that aren't very healthy for plants.

7. Growing plants!

I like to get seeds for baby carrots or sprouts. Sprouts are great because they grow fast and you can eatumm! The great thing about baby carrots is they stay small and you can eatumm too! You can also go outside and find some small plants like clovers or dandilions and transplant them into your greenhouse. It's your greenhouse so experiment and have fun!

8. Watering and placement!

Try putting your new greenhouse in a well-lit area, but not directly in the sun. It's ok if it gets a little direct contact for a short time. Just be careful not to fry your plants because they are in an enclosed area. Watering must be done regularly, maybe every day or once a week. Keep a eye on your Greenhouse. Also read the watering instructions from your seed pack. Plants like sprouts can be kept watered all the time.

VOILÀ! — a milk-carton Greenhouse!