Story: Earthworms

Apporrectodea caliginosa (2nd of 2)

Apporrectodea caliginosa

The most common introduced earthworm in New Zealand is the grey worm (Aporrectodea caliginosa). Grey worms live in the top 20–30 centimetres of soil. As they burrow through it they mix and aerate the topsoil. They produce casts (mounds of digested soil and plant matter) which help to improve the soil structure and contain nutrients in a form easily taken up by plants.

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How to cite this page:

Gregor Yeates, 'Earthworms - Earthworms in New Zealand', Te Ara - the Encyclopedia of New Zealand, (accessed 7 July 2022)

Story by Gregor Yeates, published 24 Nov 2008