Meet the internet star bringing no dig gardening to the fore

Continuing the series in which she meets people who are passionate about saving the planet, Clare Foster talks to an internet star who is educating his viewers on the organic, no dig method of gardening

The basic principles of his no dig method are disarmingly straightforward: ‘It is about two simple things – not disturbing the soil and feeding the soil life with organic matter on the surface.’ For new beds that might be overrun with weeds, the idea is to put down a light-excluding layer of cardboard to suppress the weeds, covered with a thick layer of compost to plant into. On established beds without a weed problem, he adds a 2.5cm layer of compost every spring. ‘This could be homemade compost, leaf mould, well-rotted animal manure or bark chip. Or bought-in mushroom compost,’ explains Charles. Weeds are hand-hoed or pulled out gently with minimum disturbance below the soil surface.

Understanding exactly why it is best not to disturb the soil makes the subject more compelling. ‘Underneath the ground, a healthy soil is absolutely teeming with life, and digging is detrimental to these organisms,’ says Charles. Most importantly, it can disturb the mycorrhizal fungi, which send out networks of microscopic strands. It is these mycorrhiza that make the nutrients available to the plants, by penetrating their roots and converting insoluble minerals into a form that can be taken up by the plants.

These networks are crucial to the health of the soil. Visualise a bluebell wood, for example, with each plant linked by strands of mycorrhiza. Chopping into this network by digging would destroy the plants’ life-support system. The mycorrhiza also have another benefit. ‘We did some microscope analysis of soil in a no dig bed and a bed that had been dug over, and you could see little lumps in the soil of the no dig bed, whereas the other just had even particles,’ observes Charles. ‘The fungi produces a substance like glue that sticks the soil particles together, so the structure is improved. It helps keep the soil more open and more moisture-retentive, and assists water, air and nutrients to circulate.’

Many people do not realise that, by digging our gardens, we are releasing carbon into the atmosphere. Admittedly, this is in small amounts, but it is adding up to a bigger whole. ‘We have been measuring the carbon levels in the no dig beds in comparison to beds that have been dug over, and the levels in the no dig beds are much higher,’ says Charles. ‘If every gardener switched, what a difference it would make. We can all do our bit for climate change.’

Perhaps the most tangible benefit is the plants themselves. Visiting Charles’s garden is the best advert for what he preaches. All his vegetables are enviably huge and healthy. He points out his trial beds showcasing dig and no dig methods, and the difference is clearly visible, with both yield and size improved in the no dig beds.

This unlikely internet star is a fan of social media and, as a result, his message is reaching a far wider – and younger – audience than 10 years ago. ‘Since World Soil Day started in 2014, interest has rocketed,’ says Charles. ‘The younger generation is quick to understand that the no dig method can make a difference. I used to feel as if I was fighting against the establishment, but social media has changed that. And it feels really positive.’

Charles Dowding: charlesdowding.co.uk