NCGW Things to do

Make a robot composter

Robots reign in the garden!

Here’s what you’ll need!

Shopping list for your local garden centre:

A compost bin

Things to decorate your robot (paint, glitter, plant pots and plants, half tennis balls, old CDs, bottles – use your imagination!)

A clear piece of perspex or a plastic greenhouse panel/pane


  1. The compost bin will be the body of your robot composter. Decide where you want your robot to be in your garden and put it there.
  2. Decorate the body of your robot. Go wild! Try sticking things to it to make it as funky as possible
  3. Make sure that you can still open the top of your robot composter. If you can’t, then you won’t be able to make any compost!
  4. If you want to see the stuff you put into your robot turning into compost, you can cut a hole in the side of your composter. Cover the hole with a clear piece of perspex to make a window in the robot’s body. A greenhouse pane or panel is ideal for this.
  5. When you’re done, take a photo of your robot and email it to [email protected] saying who you are and the town you live in. We’d love to see it and maybe share it on our web site to the whole country.
  6. To make compost in your robot, put a mix of live (grass clippings, leaves, weeds, fruit and veg waste) and dead (paper, cardboard, wood shavings or sawdust) into the robot. It will rot down and turn into compost to use in your garden

Download this activity sheet (PDF)
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