WORMbag Wormery

Place the WORMbag somewhere sheltered from rain, sun and extreme heat or frost, on a flat, even surface. Your home, a garage, an office, a classroom and above all a cellar or basement, where temperature and humidity remain stable, all suit it well. Choose its location before filling it: once active and full, the WORMbag wormery is heavy and must be moved carefully, by at least two people, so as not to distort its structure.

All our advice: Where to put your wormery: kitchen, cellar, garage, utility room...

Sturdy and with a 2-year guarantee, the WORMbag can be complemented with a few accessories. Our Eisenia compost worms are sold separately: the instructions recommend starting with 250 to 500 g. For the starter bedding, our additive-free 9 L coconut fibre block or our natural fibre substrate, designed for getting started, can be mixed with cardboard. An XXL hemp mat, which you cut to the shape of the bag, keeps moisture in at the top of the WORMbag, and our mini mixing rake aerates the surface without getting your hands dirty. For when you are away, consider WormFood.

Fill around 1/5 of the WORMbag with moist bedding, for example rehydrated coconut fibre mixed with cardboard or paper, to a depth of 20 to 25 cm. Check that the drawstring at the bottom is pulled tight, close the bag and wait 12 hours before adding the worms. The instructions recommend starting with 250 to 500 g of compost worms, sold separately; you can go up to 2 kg to compost faster, but a small population is safer to begin with. Garden earthworms are not suitable for the WORMbag wormery: you need compost worms.

All our advice: How to start your wormery, step by step

With the WORMbag, start small: wait 3 days after adding the worms, then add thin layers of waste. With 250 g of worms, no more than around 400 g of waste every 3 days; with 500 g, around 800 g. Watch how quickly it disappears before increasing: the population grows over months 2 to 4, and feeding can then become more frequent. Cut the waste into pieces and cover it with cardboard or paper. If the temperature rises inside the WORMbag, it is often due to too much food: pause feeding for a while.

The first harvest from the WORMbag comes after around 6 months, from the bottom of the bag. Undo the clips and Velcro flaps on the lower part, place a shallow container under the WORMbag, then gradually loosen the drawstring: the vermicompost falls out and is easy to collect, with a little scraping if needed. Stop as soon as you reach a layer containing worms, then pull the drawstring tight again. If the harvest contains a lot of worms, the compost is not ready yet: put it back on top and wait at least a month.

All our advice: How and when to harvest vermicompost and compost tea