Can the WORMbox worm composter be kept outdoors?

Yes, as long as it's sheltered. The WORMbox worm composter is mainly designed for the kitchen, pantry, basement, or garage, but several customers keep it on a balcony or a covered patio.Keep it out of the rain, which would get in through the ventilation holes in the lid.Never put it in direct sunlight; during a heat wave, bring it indoors or move it into the shade.A well-populated worm bin can handle temperatures down to about 23 °F (-5 °C); below that, cover it or bring it indoors.The WORMbox's 6 casters make moving it easy. The worms are happiest between 59–77 °F (15–25 °C).All our tips: How to protect your worm composter from cold and heat

Which accessories should I get with the WORMbox?

To get your WORMbox off to a great start, we recommend:our Eisenia composting worms: 8.8 oz (250 g) for 1 to 2 people, 1.1 lb (500 g) for 3 to 4 people, and 2.2 lb (1 kg) or more for larger households;a 9L coir block as starter bedding;our round hemp mat, cut to the right size, placed on the active tray;extra trays for the WORMbox, up to 5 in total;the WORMbox planter, which replaces the lid so you can grow herbs or flowers right above your worms.To get everything at once, our Pack of 5 Essential Accessories includes 2 round mats, WormFood, RegulaWorm, WORMboost, and a mini rake.All our tips: Which accessories does your worm composter need?

What do you harvest with the WORMbox, and how soon?

The WORMbox worm composter produces two natural fertilizers for your plants:compost tea (worm tea), after about 2 to 3 months: leave the WORMbox spigot open with a bottle underneath, and it drains on its own without you having to think about it. Dilute 1 part to 9 parts water;vermicompost: first harvest after 3 to 6 months, then roughly every 1 to 2 months. Use 30% vermicompost to 70% potting mix; it keeps for 2 years.All our tips are in our guide: How and when to harvest vermicompost and compost tea

Best Seller

[ WB/2/N ]

WORMbox Worm Composter

Q: How many Willy (composting worms) do I need to get my WORMbox off to a good start?

To start your WORMbox, plan on 8.8 oz (250 g) of worms for 1 to 2 people, 1.1 lb (500 g) for 3 to 4 people, and 2.2 lb (1 kg) or more for larger households. 1.1 lb (500 g) is roughly 1,000 worms.All the worms settle into a single tray at the start, even if your WORMbox has 3 or 4. The other trays simply wait their turn. There's no need to add too many: they breed, and their population regulates itself based on the space and food available. The more worms you start with, the faster things get going. After that, feed them gradually, keeping an eye on their appetite.All our tips: How to start your worm composter, step by step

Q: How much waste can the WORMbox recycle?

In the WORMbox, your worms eat about half their body weight in food scraps every day, sometimes as much as their full weight. That means 1.1 lb (500 g) of worms digest about 8.8 oz (250 g) of scraps a day. Their population doubles every 3 to 4 months, then adjusts to the space available. Expandable up to 5 trays of 3.4 gallons (13 liters) each, the WORMbox worm composter grows with your family: just add a tray.Bonus: your cardboard, paper, and egg cartons get recycled too, in equal parts with your peels, and it's this balance that keeps odors away. Depending on the household, that's 30 to 50% less organic waste in the trash can.All our tips: What can you feed the worms in your worm bin?

Q: When should I add a tray to the WORMbox, and how do I harvest the vermicompost?

On the WORMbox, add a new tray on top when the active tray is three-quarters full. The new tray must touch the material below: the worms will move up on their own, drawn by the fresh food scraps. Move your hemp mat up into this new tray as well.When you run out of empty trays, it's time to harvest. Move the bottom tray to the very top, take off the lid, and set it under a light. Then scrape off the vermicompost in 0.4–0.8 in (1–2 cm) layers every 5 minutes. Handy tip: the lid hangs on the edge of the tray. If you need more room, the WORMbox worm composter holds up to 5 trays.All our tips: How and when to harvest vermicompost and compost tea

2 trays - Black

See description

4,6 157 reviews

Available in 14 colors to match your home.
Made in France from recycled and recyclable plastic.
Modular design with 2 to 4 trays and an optional planter.
Easy to fit into your decor thanks to its elegant design.
Excellent value for money, with French manufacturing quality.

SIZE 2 trays

2 trays

2 trays + Planter

3 trays

3 trays + Planter

4 trays

4 Trays + Planter

COLOR Black

$64.60

€57.50 · Payment in euros · prices in USD at today's exchange rate

In stock

Delivered to your door between Thursday 29 October and Monday 2 November, starting at $51.34 for shipping to

USA. Calculate your shipping costs in your cart. We ship to 192 countries.

OPTIONS +4 available Bundle and Save

🎁

+ 57 loyalty points that's $3.20 off a future order

Discover the program ›

Description
Technical data sheet
Video
Guide & FAQ8
Customer reviews157

The WORMbox worm composter fits perfectly into your home and comes in 12 colors, with models ranging from 2 to 4 trays and an optional planter for your plants.

Designed and made in France (in the Landes region), its black parts are made from recycled and recyclable plastic, ensuring both durability and respect for the environment.

The base on 6 casters supports the stacked round trays, allowing the worms to move from bottom to top. The top tray regularly receives your fresh organic waste, ensuring continuous, efficient composting.

Its distinctive, elegant design makes it easy to fit into any home.

The design and integrated trays are the result of over 15 years of experience and passion—giving you an efficient, practical, and long-lasting worm composter.

The main goal of the WORMbox is to offer you a worm composter that is sturdy and efficient, with excellent value for money. Composting worms thrive in it and efficiently turn your food scraps into rich compost, ready to use for your plants.

It grows with your household: you can add extra trays as your family grows, or even replace the lid with a planter for your own plants.

Comes complete with:

1 lid,
1 planter (optional),
2 to 4 trays,
1 leachate tray with spigot and seal,
1 base + 6 casters,
1 vermicomposting guide + assembly instructions in English.

Active WORMbox tray with composting worms

Included: the complete vermicomposting guide and a detailed 20-page user manual (8.3 in x 8.3 in (21 cm x 21 cm), in English) to walk you step by step through using and maintaining your worm composter.

Advantages

The WORMbox worm composter offers many advantages:

Great value for money: high-quality French manufacturing.
Self-supporting lid: it lifts easily with one hand and hangs on the edge of the tray with its inner hook, so you never have to set it on the floor.
Low environmental footprint: the WORMbox is made from recyclable plastic.
Modular and expandable: simply add trays as the amount of waste you need to process grows.
Stylish and ergonomic: fits easily into any home and is convenient for everyday use. 12 colors available.

How it works:

As the lower trays fill up, you add a new tray on top, moving up one level. The worms gradually migrate upward, drawn by the fresh food scraps, to feed on new organic matter. The vermicompost and worm tea are harvested from the lower levels of the worm composter.

Technical specifications WORMbox Worm Composter

Overview
Brand	WORMbox
Reference	WB/2/N
Color	Black
Size	2 trays
Worm composter type	Stacking trays
Use	Indoor and sheltered outdoor
Capacity
Number of working trays	2 depending on size
Maximum number of trays	5
Tray volume	5 gallons (19 liters)
Composting volume per tray	3.4 gallons (13 liters)
Total composting volume	6.9 gallons (26 liters) depending on size
Recommended household size	1/2 people depending on size
Recommended starting quantity of worms	1.1 pounds (500 grams)
Features
Leachate tray	Yes
Spigot	Yes
Planter	No depending on size
Lid	Freestanding
Casters / feet	6-caster base
Number of casters	6
Wheel diameter	2 inches (50 millimeters)
Dimensions and material
Material	Recycled plastic
Number of colors	14
Overall dimensions	Length 18.5 x Depth 18.5 x Height 16.9 inches (47 x 47 x 43 cm)
Weight	15.2 pounds (6.9 kilograms)
Manufacturing
Country of manufacture	France
Box contents and warranty
Instructions / guide included	Vermicomposting guide in English
Warranty	10 years

Your questions about the WORMbox

The farm's answers to the questions our customers ask us most often.

The WORMbox works for almost every household because it grows with you: it comes with 2 to 4 trays, each with 3.4 gallons (13 liters) of usable capacity, and it holds up to 5 trays.

Here at the farm, we generally recommend 2 to 3 trays for 2 to 3 people, and 4 to 5 trays for a larger family or one that cooks a lot. There's no need to plan for everything from the start: if the bottom tray isn't fully broken down when it's time to harvest, you need another tray. Extra trays for the WORMbox are sold individually in several colors.

All our tips: How does a stacking tray worm composter work?

Yes, as long as it's sheltered. The WORMbox worm composter is mainly designed for the kitchen, pantry, basement, or garage, but several customers keep it on a balcony or a covered patio.

Keep it out of the rain, which would get in through the ventilation holes in the lid.
Never put it in direct sunlight; during a heat wave, bring it indoors or move it into the shade.
A well-populated worm bin can handle temperatures down to about 23 °F (-5 °C); below that, cover it or bring it indoors.

The WORMbox's 6 casters make moving it easy. The worms are happiest between 59–77 °F (15–25 °C).

All our tips: How to protect your worm composter from cold and heat

To start your WORMbox, plan on 8.8 oz (250 g) of worms for 1 to 2 people, 1.1 lb (500 g) for 3 to 4 people, and 2.2 lb (1 kg) or more for larger households. 1.1 lb (500 g) is roughly 1,000 worms.

All the worms settle into a single tray at the start, even if your WORMbox has 3 or 4. The other trays simply wait their turn. There's no need to add too many: they breed, and their population regulates itself based on the space and food available. The more worms you start with, the faster things get going. After that, feed them gradually, keeping an eye on their appetite.

All our tips: How to start your worm composter, step by step

The WORMbox ships complete: lid, 2 to 4 trays, leachate tray with spigot and seal, base with 6 casters, planter if you chose one, our vermicomposting guide with detailed instructions, and a video training session.

The WORMbox worm composter can be ordered with or without worms; our worms arrive in a shipping bedding developed here at the farm. You'll also need bedding (a coco coir block or cardboard) and a round hemp mat. Designed and made in France, in the Landes region, from recycled plastic: its product page lists a 10-year warranty.

In the WORMbox, your worms eat about half their body weight in food scraps every day, sometimes as much as their full weight. That means 1.1 lb (500 g) of worms digest about 8.8 oz (250 g) of scraps a day. Their population doubles every 3 to 4 months, then adjusts to the space available. Expandable up to 5 trays of 3.4 gallons (13 liters) each, the WORMbox worm composter grows with your family: just add a tray.

Bonus: your cardboard, paper, and egg cartons get recycled too, in equal parts with your peels, and it's this balance that keeps odors away. Depending on the household, that's 30 to 50% less organic waste in the trash can.

All our tips: What can you feed the worms in your worm bin?

To get your WORMbox off to a great start, we recommend:

our Eisenia composting worms: 8.8 oz (250 g) for 1 to 2 people, 1.1 lb (500 g) for 3 to 4 people, and 2.2 lb (1 kg) or more for larger households;
a 9L coir block as starter bedding;
our round hemp mat, cut to the right size, placed on the active tray;
extra trays for the WORMbox, up to 5 in total;
the WORMbox planter, which replaces the lid so you can grow herbs or flowers right above your worms.

To get everything at once, our Pack of 5 Essential Accessories includes 2 round mats, WormFood, RegulaWorm, WORMboost, and a mini rake.

All our tips: Which accessories does your worm composter need?

On the WORMbox, add a new tray on top when the active tray is three-quarters full. The new tray must touch the material below: the worms will move up on their own, drawn by the fresh food scraps. Move your hemp mat up into this new tray as well.

When you run out of empty trays, it's time to harvest. Move the bottom tray to the very top, take off the lid, and set it under a light. Then scrape off the vermicompost in 0.4–0.8 in (1–2 cm) layers every 5 minutes. Handy tip: the lid hangs on the edge of the tray. If you need more room, the WORMbox worm composter holds up to 5 trays.

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

The WORMbox worm composter produces two natural fertilizers for your plants:

compost tea (worm tea), after about 2 to 3 months: leave the WORMbox spigot open with a bottle underneath, and it drains on its own without you having to think about it. Dilute 1 part to 9 parts water;
vermicompost: first harvest after 3 to 6 months, then roughly every 1 to 2 months. Use 30% vermicompost to 70% potting mix; it keeps for 2 years.

All our tips are in our guide: How and when to harvest vermicompost and compost tea

Can't find your answer? Write to us. We answer every question by email.

Submit my question

Learn more: our guides

GuideHow does a tray worm composter work?GuideHow to protect your worm composter from cold and heat GuideHow to set up your worm composter, step by step

Mentioned in the answers

WORMbox trayAdd a level, compost more

Composting wormsPacks from 8.8 oz (250 g) to 22 lb (10 kg) of worms

Coco 9LAdditive-free substrate for gardening or animals, sold individually or in a pack of 9

Round hemp matFor WORMbox, Eco-Worms, Can-O-Worms, sold individually or in packs of 5 or 10

Customer reviews for WORMbox Worm Composter

4,6 /5

157 reviews · 38 % verified reviews
including 156 from other countries, translated

157 reviews

Tracey

Chesterfield

Verified Purchase

WORMbox21/10/2026

Model: 3 trays · RaspberryHousehold size: 2 peopleLocation: Basement, utility room, garageSize for your needs: Just rightUsed for: 1 to 3 months

We’ve been using it for five weeks it’s been really good we have already put our second tier on the worms seem to be thriving. Some do escape every day into the bottom bit where the worm tea collects but we haven’t had any worm tea so they are safe. We just rescue them every day and put them back in the top we have had little fruit flies once so covered everything with pieces of egg boxes. And put a little pot of apple cider vinegar with some washing up liquid at the side of the wormery and that together cleared them up.

Was this review helpful?Review rewarded with loyalty points

Christine

Gradignan

31/07/2025

Automatic translation from French

I've been using it since March 2021, it's still in perfect condition and effective, I give worm tea to all my friends

Was this review helpful?

Pascal

Bordeaux

Verified Purchase

18/07/2025

Model: 3 trays · GrayUsed for: More than 2 years

Automatic translation from French

The worms have been healthy all along, for several years now. A practical product that requires little maintenance.

Was this review helpful?

Piergiorgio

Bologna

Verified Purchase

Willy box20/10/2026

Model: 4 trays · RaspberryHousehold size: 2 peopleLocation: Balcony, patioSize for your needs: Just rightUsed for: 1 to 3 months

Automatic translation from Italian

After 2 months they are still very active, they seem to like their environment. Despite the high humidity there is no bad smell, and it doesn't produce or attract insects either. We'll see after the winter. Anyway, it's a great pastime, even for children.

Was this review helpful?Review rewarded with loyalty points

Virginie

Rouvres En Plaine

Verified Purchase

19/10/2026

Model: 2 trays · Azure BlueHousehold size: 5 or more peopleLocation: Basement, utility room, garageSize for your needs: Just rightUsed for: More than 2 years

Automatic translation from French

This is my second purchase. Just one is a bit tight for a big family when winter comes around with all those soups 😊.

Was this review helpful?Review rewarded with loyalty points

Celine

Toulon

19/06/2025

Automatic translation from French

Perfect for a terrace or a small garden

Was this review helpful?

Philippe

Woelfling Les Sarreguemines

Verified Purchase

19/06/2025

Model: 4 Trays + Planter · RaspberryUsed for: 3 to 12 months

Automatic translation from French

I'm really happy with my worm farm, and every now and then I give a few worms to my fish! It helps keep the population down a bit!

Was this review helpful?

Isabelle

Lieusaint

17/06/2025

Automatic translation from French

Very good, but unfortunately the hemp disc didn't last very long. After a while we lost all our composting worms. I didn't understand why, and I find the price too high to buy more. Otherwise the idea is great and it works.

Was this review helpful?

Sophie

Toulon

16/06/2025

Location: Indoors

Automatic translation from French

GREAT! I've had it in my apartment for several years, no problems at all and very easy to maintain. The initial training allowed me to start the experience with peace of mind and answered all my questions. The round model takes up a lot of room in diameter... there's less wasted space with rectangular or square models... I don't understand why there are round models for indoor use... I know other shapes exist, but I didn't have a choice and I don't want to buy one; the one I got was provided by the waste collection center.

Was this review helpful?

Benoit

Avignon

16/06/2025

Automatic translation from French

The worm composter is very sturdy. 3 trays may be a bit tight in winter.
The weak point is the wheels. They didn't hold up, so I now have my worm composter sitting on wooden battens. It's true that with the leachate overflowing and the locations not always suitable, the wheel support may weaken? Does this need to be reconsidered, or should the wheels be removed?
So it's not 5 stars, but it's really good. 4.9. Which goes to show that, besides the stars, reviews are worth reading.
Thank you.

Was this review helpful?

See all 157 reviews

Reviews are published after an automated check, with no filtering by rating. “Verified purchase”: review linked to a delivered order. Reviews may be rewarded with loyalty points, regardless of the rating. Reviews from other countries are automatically translated.

Vermicomposting with composting worms 269 products

WORMbox

WORMgarden

Transfarmers

City Worms

Stacking trays

In-ground

All brands

By use

Care and Accessories

Outdoor composters and Bokashi 43 products

Rotating compost bins

Bokashi composters

Wooden composters

Compost accelerators

Live animals and accessories 72 products

Composting worms

Bait & worms

For horses

For livestock

For your birds

In Animals

Everything for your home and decor 205 products

Ceramic flowers

Ceramic ollas

Bookstore

In Home

Natural gardening 205 products

Fertilizers & Plant Nutrients

Hydroponics & Aquaponics

Planters & Pots

In Gardening

Effective Microorganisms (EM) 106 products

EM-1 mother solution

Water Improvement

Soil & Plants

Cleaning & Care

Animals

Wellness

In EM

WORMbox Worm Composter

2 trays - Black

Comes complete with:

Advantages

How it works:

Your questions about the WORMbox

Customer reviews for WORMbox Worm Composter

Fast shipping

Secure payment

Worm farm

Multilingual support

Accepted payment methods

Let's bring the soil to life

About Us

Need help?

Information