What is a wormery and how does it help gardeners?

A wormery will turn old vegetable matter into nutrient-rich material for your plants (Alamy/PA)
Those of us who want to create the richest possible compost should cast aside any squeamish tendencies and think about creating our own wormery.
Worms are among the most beneficial organisms in the garden, helping keep the soil structure good and bringing organic matter down into the earth.