Managing greenwaste at home

Greenwaste (garden waste) and food scraps make up around 40% of waste sent to our landfills each year. Not only do they take up valuable space, once sealed in the landfill they break down to form methane gas. Greenwaste and food scraps in the landfill can also contaminate groundwater systems.


Composting is an easy way to deal with your food scraps, garden trimmings and lawn clippings. Composting doesn’t form methane gas as the materials have access to the air which prevents methane from forming. There is plenty of information on the internet about composting.


Bokashi composting uses a selected group of microorganisms to ferment organic waste. It’s odour-free and very fast - usually taking less than two weeks. Once the fermentation is complete you can add the scraps to a worm bin or bury them directly in the soil. Unlike more conventional composting systems, bokashi systems can break down heavier items like meat, fish and cheese.

Worm farming

Worm farming is a great way to deal with your food scraps and can be done all year round, both inside and out. It’s easy to get started, perfect for people who have limited space, and produces a rich compost for the garden.

The Waitaki Resource Recovery Park at Chelmer Street has a worm farm you can check out, and they can provide you with lots of useful information and advice on how to start your own.