Composting is a simple way to turn kitchen scraps and yard waste into a useful soil amendment. Instead of sending food peels, leaves, and grass clippings to the trash, you can break them down naturally and use the finished compost in gardens, flower beds, and containers.
You do not need a large yard or expensive equipment to begin. With the right location, a suitable container, and a balanced mix of materials, almost anyone can compost at home.
What Is Composting?
Composting is the natural process of breaking down organic materials into a dark, crumbly material called compost. Tiny organisms, including bacteria and fungi, feed on the materials and gradually transform them into nutrient-rich matter.
Finished compost can help improve soil structure, support healthy plant growth, and help soil hold moisture. It is not a complete replacement for soil or fertilizer, but it is a valuable addition to many gardens.
Choose the Right Composting Method
The best composting method depends on your available space, the materials you have, and how quickly you want results.
Outdoor Compost Bins
An outdoor bin is a practical choice if you have a yard. You can buy a manufactured compost bin or make a simple enclosure from wood, wire mesh, or recycled materials.
Place the bin on bare ground when possible. This allows helpful insects and soil organisms to reach the compost. Choose a location with good drainage and convenient access, preferably near the kitchen or garden.
Compost Tumblers
Compost tumblers are enclosed containers that can be turned by hand. They are often easier to mix and can help keep animals out. However, they usually hold less material than a traditional bin and may require more careful attention to moisture and balance.
Indoor or Small Space Composting
People without yards can consider a worm bin or an electric countertop composter. Worm bins use special composting worms to process food scraps. They work well in small spaces but require a suitable indoor location and regular care.
Countertop machines usually dry or process food scraps rather than creating traditional compost. Read the product instructions carefully and consider how the finished material should be used.
Understand Green and Brown Materials
A healthy compost pile needs a mixture of “green” and “brown” materials.
Green Materials
Green materials are generally moist and rich in nitrogen. Common examples include:
– Fruit and vegetable scraps
– Coffee grounds and paper filters
– Fresh grass clippings
– Fresh plant trimmings
– Small amounts of nonfatty food scraps
Brown Materials
Brown materials are generally dry and rich in carbon. Examples include:
– Dry leaves
– Plain shredded paper
– Uncoated cardboard
– Small twigs
– Straw
– Untreated wood chips
A simple starting point is to use roughly two or three parts brown materials for every one part green material by volume. You do not need to measure every item precisely. If the pile is wet or smells unpleasant, add more browns. If it is dry and not breaking down, add more greens and a little water.
Add Materials in Manageable Pieces
Smaller pieces usually break down faster because they provide more surface area for organisms to work on. Cut large fruit and vegetable scraps into smaller pieces, tear cardboard into strips, and chop thick stems when practical.
Avoid filling the bin with one type of material at a time. Mix food scraps with dry leaves, shredded paper, or other brown materials as you add them. This helps maintain airflow and balance.
Keep the Compost Moist but Not Soaked
Compost should feel about as damp as a wrung-out sponge. It needs moisture for decomposition, but too much water can fill the air spaces and create unpleasant odors.
If the pile looks dry, add a small amount of water while mixing. If it is very wet, add dry leaves, shredded cardboard, or plain paper. A covered bin can help protect the pile from heavy rain while still allowing air to circulate.
Provide Airflow
Composting organisms need oxygen. Without enough airflow, the pile can become compacted and develop a sour or rotten smell.
Turn the compost with a garden fork, shovel, or compost aerator every week or two. If turning the entire pile is difficult, loosen the center and sides as much as possible. You can also add coarse materials, such as small twigs, to create air pockets.
Some compost bins include ventilation holes. Make sure these openings are not blocked by compacted materials or excess moisture.
Know What to Compost
Many common household and yard materials are suitable for a basic compost pile.
Good options include:
– Vegetable and fruit scraps
– Coffee grounds and paper filters
– Tea leaves and some plain tea bags
– Eggshells, crushed into small pieces
– Grass clippings
– Leaves and plant trimmings
– Plain paper and cardboard
– Sawdust from untreated, unpainted wood
When adding paper or cardboard, remove plastic coatings, tape, glossy sections, and heavy ink when possible. Tear the material into smaller pieces so it mixes evenly with the rest of the pile.
Materials to Avoid
Some items can attract pests, create odors, or introduce unwanted substances. For a simple home compost pile, avoid:
– Meat, fish, and bones
– Dairy products
– Greasy or oily foods
– Pet waste
– Diseased plants
– Weeds with mature seeds
– Coal or charcoal ash
– Glossy or plastic-coated paper
– Treated, painted, or stained wood
Some experienced composters successfully process meat or dairy in carefully managed systems, but beginners may find these materials difficult to handle. Local composting programs may accept items that are not suitable for a backyard bin, so check their guidelines.
Prevent Common Composting Problems
Bad Odors
A strong unpleasant smell often means the pile is too wet, too compact, or too rich in green materials. Mix in dry leaves or shredded cardboard and turn the pile to improve airflow.
A Pile That Is Not Breaking Down
If the compost seems inactive, it may be too dry, too cold, or made mostly of large pieces. Add a little water, mix the materials, and break up larger items. Composting naturally slows during cold weather, so patience may be necessary.
Flies or Unwanted Animals
Bury fresh food scraps in the center of the pile and cover them with brown materials. Use a secure lid if possible, and avoid adding meat, dairy, or oily foods. Keep the area around the bin clean and remove spilled scraps.
Excess Moisture
A soggy pile needs more dry material and better airflow. Add leaves, shredded cardboard, or untreated wood chips, then turn the mixture. A well-drained location and a rain cover can also help.
Learn When Compost Is Finished
Finished compost is usually dark brown, crumbly, and earthy-smelling. Most of the original materials should no longer be recognizable, although small pieces of twigs or eggshells may remain.
Depending on the materials, weather, and maintenance, compost may take several months to finish. Letting it mature a little longer can improve its texture. If you still see many fresh food scraps, return the material to the active pile and continue mixing.
Use Finished Compost in the Garden
Spread a layer of finished compost over garden soil and mix it into the top few inches. You can also add a small amount around established plants, use it when preparing planting beds, or blend it into potting soil.
Avoid planting directly into pure compost because it may hold too much moisture or contain more nutrients than some plants need. Compost works best as part of a balanced growing medium.
Start Small and Keep Practicing
Successful composting does not require perfection. Begin with a manageable bin, add a variety of materials, and check the moisture and airflow regularly. Small adjustments can solve most problems.
As you gain experience, you will learn which materials are easiest to collect and how quickly they break down in your local conditions. With a little patience, your household scraps can become a useful resource for healthier soil and a more productive garden.
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