About Gardeners Gold, worms and worm farming


Gardeners Gold is a subsidiary of Fyfield Estates Ltd, a farming company.

Fyfield started worm farming in 2003 and quickly became the largest worm farm in the UK.

The humble earth worm fascinated the great naturalist and founder of the Theory of Evolution, Charles Darwin. In his latter years when he was not able to travel he wrote the book “ The Formation of Vegetable Mould, Through the Action of Worms, With Observations on Their habits, 1881” and he was so impressed by the activity of these fascinating creatures that he said that if it was not for their constant activity the world would be knee deep in leaf litter.

Isn’t it amazing that where ever you encounter an earth worm it is always clean.

Charles Darwin spent his life observing nature, and he could imagine that the world we can all see is not as important and perhaps nearly as large as the world we cannot see, that world is underground. Consider a mighty tree, what you see is only half, the rest is underground and is nourished and cared for by the millions of organisms that inhabit that part of our planet.


Earthworm scientists are known as oligochaetologists.

Those of us interested in the earth worm, whether as a gardener, naturalist, wormery owner, fisherman or worm farmer, will spend a long time trying to look after the worms in our care and more often than not we will find ourselves lacking in knowledge, for to be successful at managing worms you should not see anything.

Worms on the move are unhappy worms and happy worms stay out of sight.


Charles Darwin observed in his book.

Their chief work is to sift the finer from the coarser particles in the soil and to mingle the whole with vegetable debris, and to saturate it with their intestinal secretions…no one who considers the facts…will hereafter, as I believe, doubt that worms play an important part in nature

For Darwin, an acre of garden soil could contain over 50,000 earthworms and yield eighteen tons of castings per year. Scientist have shown that the figure to be closer to 1 million. Earthworms in the Nile valley can deposit up to 1000 tonnes of castings per acre, helping to explain the astonishing fertility of Egypt’s agricultural land.

Once mature worms lay eggs or cocoons from which after 6 to 12 weeks small microscopic worms emerge, usually 3 or 4 per cocoon. Depending on the time of year these baby worms will find a food source and grow steadily. The wormafrmer tries to speed up this process by temperature and moisture control and through feeding. It is micro managing on a small scale. The wormery owner, whether using a “Can-o-Worms” or other types of wormery (worm hotel, worm works, and wormcity wormery) will observe marked differences in the performance and behaviour of their worms through the seasons. Usually there is a flush of activity in the spring and in the autumn, just like nature, and these flushes are when the most breeding and movements within and without the wormery occur.


The worm farmer is trying to harness this activity to encourage the worms to breed more frequently and to control the egg hatching so that he achieves a fairly even supply of worms throughout the year.

At Fyfield we are now able to do this and we are slowly and confidently building up our business of producing and selling UK produced high quality Dendrobaena worms and some lob worms for the UK market.

We are more than happy to assist fellow worm farmers and wormery owners with all enquiries and we are pleased to use our experience to try to explain anything and everything about vermiculture.

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