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home composters The Solar Cone In-ground Composting System

click images to enlarge

The Green Cone
Composting System

$209 + $65 shipping

"The one-of-a-kind kitchen waste eliminator"

Study Proves: Compost Helps Fight Off Plant Diseases!

"A study commissioned by the Waste & Resources Action Plan (WRAP) looked at recent research into almost 50 types of disease affecting plants and concludes the evidence that compost made from garden or food waste helps suppress all manner of wilts, rots and turf disease is overwhelming." Read more...


What can I put in?

The solar-heated Green Cone eliminates your cooked and uncooked kitchen food waste, including :

Red Meat & Poultry
All Bones
Fruit including peelings
Vegetables including peelings
Dairy produce
Cooked food scraps
Crushed egg shells
Tea bags
Animal excrement

Virtually the only exceptions are bulk amounts of food related materials that require a very long time to breakdown, namely: cooking oil/fat and the hard shells of nuts and seafood, such as oysters and crabs.

How important is the placement of the Green Cone?

The Green Cone converts food waste primarily into water and carbon dioxide. The water produced must be able to drain freely away, otherwise the Green Cone will become anaerobic (without oxygen) and will cease to work. It is therefore crucial to install your Green Cone in an area of good drainage. Under no circumstances should the base of the basket be below the water table or where water gathers. More information on how to test your drainage

What will I need for assembly?

Assembly will take you about an hour to complete. You'll need a shovel to dig a hole about two feet deep, in order to bury the bottom mesh section of the composter. Next, attach the top section to the bottom with metal screws. A power screwdriver that will make the job easier. Click for in depth assembly information

What happens next?

Once the compost fills up, in about 1-2 years, unscrew the top section and remove it, pull out the basket from the ground, and distribute the rich compost that you've made.

You may want to stop adding new material a couple of weeks before you empty it to ensure all the scraps inside are fully decomposed.

Recycling Benefits ::

Using the GreenCone In-ground composter, you can eliminate most of your your kitchen waste, reducing your family's trash by 20%. This will ::

  • help conserve our landfills space
  • reduce the use of garbage truck fuel
  • decrease the workload of large-scale treatment plants.



Green Cone In-ground Composting System : Making recycling easy

No turning. Empty it just once a year. The composting solution for people wanting to compost kitchen scraps but don't want to deal with the regular turning and distributing of compost. Using the Green Cone System, you can eliminate most of your kitchen waste, reducing your family's trash by 20%.

The patented design of the unit utilizes a solar heating effect between the inner and outer cones to promote air circulation, which facilitates the growth of beneficial micro-organisms and the desirable aerobic digestion process. The household food waste is converted into water, carbon dioxide and a small amount of residue. Because over 90% of the waste material in the Green Cone is absorbed safely as water by the soil, the Green Cone only needs to be cleaned once every few years when treated with care.

Features ::

  • Handles kitchen scraps from an average family of 4
  • No turning, maintenance, distribution (except once every year or so)
  • Pest free underground system
  • Compost caddy and accelerator powder included
  • Measures 27"H, 24" base diameter , 11.5" top diameter

The Green Cone System : easy as 1 - 2 - 3:

Step 1: Fill your Green Cone Caddy with organic kitchen waste.
Step 2: For the first week or as needed, shake The Green Cone Accelerator Powder a couple of times over the waste in your Caddy.
Step 3: Empty your Caddy into The Green Cone in your garden.

Compare our Composters

Green Cone Composting System

The Green Cone System

spacer Capacity: 7 cu.ft.
spacer Height 27"H (cone)
spacer Width 24" (base diam.) 11.5" (top diam.)
spacer Weight 35lbs
  Usage kitchen and food wastes including animal produts like meat and fish
spacer Composition 100% recyled plastic (basket + inner core), outer cone is polyethylene


Green Cone Accessories



BiOWiSH™ Compost Boost

BiOWiSH™ Compost Boost assists in maintaining effective composting processes even when you do not strictly control nitrogen to carbon balances in your compost. This makes composting a much easier process where you can dispose of all your organic waste material.

With BiOWiSH™ Compost Boost you are using the most powerful Microbial Enzyme technology available to rapidly digest the waste matter in your composting unit.



Hardware Pack

Replacement hardware for the Green Cone

Hardware pack includes all necessary fasteners for Green Cone assembly, including step-by-step instructions



Kitchen Caddy

The Green Cone Kitchen Caddy is a convenient accessory that is kept in your kitchen to reduce the number of trips you make to your Green Cone.

Throughout the day, food waste is stored in the caddy before it is taken to your Green Cone.

The lid of the caddy contains a replaceable charcoal filter to eliminate any possible odors in your kitchen.



Replacement Basket

Replacement basket for the Green Cone


shopping basket

Replacement Caddy Filter

Designed to filter any odors out of your Kitchen Caddy, the charcoal filter is easy to replace.



Replacement Lid

Replacement lid for the Green Cone

Please specify in the Order Comments whether your Green Cone was purchased before 1997


How the Green Cone Works ::

  • Choose a sunny spot with good drainage. Bury the bottom of your Green Cone about 18 inches below ground. This underground open basket design allows aeration and breakdown of the scraps without smells.
  • Place your cone where it will receive sunlight, the sunnier the better. The top of the cone which remains above ground, is sealed, protecting it from vermin, pets, etc.
  • The Green Cone is supplied with a convenient Kitchen Caddy which reduces the number of trips you make to your Green Cone. Simply collect your waste in the caddy throughout the day and empty it once into your Green Cone. The lid of the caddy contains a filter to reduce food waste smells in your kitchen.
  • Your Green Cone System comes with Accelerator Powder to keep your Green Cone working efficiently. Use this during the first week after installing. There are other times when this powder is useful. For example, when there are long periods of cold weather or when your Green Cone does not enjoy a full day of sunshine.
  • The Green Cone can handle kitchen scraps from the average family of four. That is about 1 full caddy every 1-2 days in the Summer and 1 every 2-3 days in the Winter.
  • After your compost bin fills up, in about 1-2 years, just unscrew the top and remove your basket of compost from the ground.

Warranty + Product Brochure

The Green Cone Composting System is guaranteed for 3 years against manufacturing defects

BiOWiSH™ Compost Boost