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How To Make Your Own
Worm Farm In A Bottle

Get kids excited about composting by creating a worm farm in a bottle! This hands-on gardening activity teaches tamariki about worms' vital role in soil health while they layer soil, leaves, and food scraps and learn how worms break down organic matter into vermicast. A fun, educational project for home or the classroom!

What You'll Need

  • Empty 1.5 litre soft drink bottle

  • Small stones

  • Sand

  • Soil

  • Dead leaves or a small amount of shredded newspaper

  • Food scraps such as lettuce, vegetable peelings, banana skin (do not usemeat, citrus or onion) that have been finely chopped

  • Worms (collected from garden or tiger worms from a worm farm)

  • Black paper and sellotape

Instructions

  • Cut the top section off the bottle and drill some holes in the bottom for drainage and a few holes about 2-3 cm from the base for air flow

  • Use a hole punch to put some air holes in the bottle just below the neck of the bottle

  • Add a small layer of stones to the bottom of the bottle for drainage, then a5cm layer of sand

  • Add approximately 5cm soil and a few leaves (or shredded newspaper)

  • Add 2-3 worms

  • Add a small amount of chopped up food scraps

  • Continue to layer with soil, leaves and a small amount of food scraps,adding a couple of worms with each layer until it almost reaches the top

  • Finish with a layer of soil and dampen with water

  • Put top back onto the base and wrap in black paper as worms do not like the light

  • Check periodically to see the work the worms have done

  • Feed and add water if necessary - worms like it damp but not too wet

Food scraps and newspaper for worm farm
Worm farm in bottle
Bottle covered in black paper

Did you try this activity? 

I'd love to hear how it went for you!

Tag @growingkiwigardeners on Facebook or Instagram or send me an email!

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