Earthworms can move stones 60 times their own weight and they baffle scientists by producing casts which are so much more fertile than the soil they live in. Worms eat what they fancy and excrete fertility. When we planted our first hedge 5 years ago, we counted 5 worms one day. This year, each hole dug for the new hedge has revealed more worms than that. Bringing fertility back to our soils has been a slow and at times painful learning, but trusting nature rather than artificial fertilisers or chemicals that kill things has been good for our superheroes and ultimately good for our grasses.