Worm composter with planter: WORMbox, WORMgarden, Transfarmers, WORMacotta...

Vermicomposting produces one of the most powerful natural fertilizers there is — so why not deliver it straight to where it's needed? Several of our models are designed for exactly that, from a simple accessory that transforms your existing worm composter to a product built entirely around combining composting and growing.

WORMbox: the planter option that replaces the lid

On the WORMbox, simply replace the lid with the WORMbox planter: a shallower tray (about 3.1 in (8 cm)) that you fill with potting soil — with no chemical or organic fertilizer — before planting. Micro-perforated, it lets your worms come up and wander through the soil, depositing vermicompost directly at the base of your herbs, cacti, or flowers. With the planter in place, the hemp mat is no longer needed, since the roots themselves absorb any excess moisture. Designed for indoor use, it's easy to set up, with no tools required.

Willy's tip

Go for herbs (basil, parsley, chives...) if your worm bin is in the kitchen, or cacti and succulents, which handle this rich substrate very well and need little water. The planter is fairly shallow, so it's best to avoid vegetables with deep, hungry roots, and to water sparingly, since the material underneath is already moist thanks to your worms.

WORMgarden: a vertical vegetable garden designed around composting

The WORMgarden doesn't just add a planter to a worm composter: it's the other way around, a vertical vegetable garden built around a large central composting area, based on the keyhole garden principle. Each tier has 6 growing pots arranged around this area, and you can stack up to 3 additional planters for up to 18 growing zones. Stakes can pass through the perforated planters to support your tomatoes or other climbing plants.

Your worms, living in the central area, turn your food scraps into compost that feeds the surrounding plants directly. A bottom drawer lets you harvest the vermicompost, and a spigot collects excess irrigation water or rainwater (up to 2.6 gallons (10 liters)) — handy, so nothing goes to waste. Modular, it works just as well outdoors (patio, yard) as indoors.

Transfarmers: the flower pot that does its own composting

Another, even more direct approach: the Transfarmers is a terracotta flower pot with a built-in worm composter, handmade in Castelnaudary. A perforated membrane separates the two compartments: you add your peels on one side, plant on the other, and your worms move freely between the two to feed your plants directly.

It works on a continuous-flow basis: food goes in at the top, and vermicompost is harvested from the bottom by simply opening a stopper, just like conventional tray models — with the first harvest after about 6 months. With its 4.5-gallon (17-liter) capacity and organic terracotta shape, each piece is unique and fits in just as well indoors as in a sheltered outdoor spot.

WORMacotta and In-Ground: bury them directly in your planter

Yet another principle: instead of adding a planter to your worm composter, you bury a small vermicomposting tube directly in an existing planter, flower pot, or vegetable garden. The WORMacotta and the In-Ground both work this way: push the tube into the soil until the last holes disappear (to keep insects out), fill it with finely chopped peels, then add your worms. They'll come to feed on the scraps every day and naturally colonize the surrounding soil, improving its quality day after day.

The main difference is the material: the WORMacotta, designed by us, is made entirely of natural terracotta — no plastic in contact with your plants — and comes in two sizes depending on the volume of your planter (1.2 qt (1.1 L) for 4–8 gallons (15–30 L) of potting soil, 1.7 gallons (6.5 L) for over 26 gallons (100 L)); remember to protect its lid from frost in winter. The In-Ground, made from recycled plastic, offers a larger capacity (3.2 gallons (12 liters)) in a single size.

In summary

An accessory that replaces the lid, a vertical vegetable garden designed around composting, a 2-in-1 flower pot, or a simple tube buried in an existing planter: combining a worm composter and a planter is one of the most direct ways to make the most of your homemade fertilizer, whichever model you choose.

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