Composting is a simple way to turn everyday food scraps and yard waste into a useful soil amendment. Instead of sending organic materials to the trash, you can let them break down naturally and use the finished compost in a garden, flower bed, or container plants.
You do not need a large yard or special equipment to get started. With the right container, a balanced mix of materials, and a little patience, beginners can create compost at home with minimal effort.
What Is Composting?
Composting is the natural process of breaking down organic materials into a dark, crumbly material often called finished compost. Tiny organisms, insects, and other decomposers help transform items such as leaves, vegetable scraps, and grass clippings.
Finished compost can improve soil structure, help the soil hold moisture, and add organic matter. It is not a replacement for all soil or plant food, but it is a helpful addition for many gardens and potted plants.
Choose the Right Composting Method
The best composting method depends on your available space, the amount of organic waste you produce, and how involved you want to be.
Outdoor Compost Bin
An outdoor bin is a practical choice if you have a yard. You can buy a ready-made compost container or create a simple enclosure from untreated wood or wire mesh. Place it on bare ground when possible so soil organisms can reach the compost.
Choose a location that is:
– Convenient to reach from the kitchen or garden
– Well drained
– Partly shaded
– Protected from strong winds
– Large enough for your household needs
A bin does not need to be in full sun. Excessive heat can dry the pile, while a shaded location can help maintain more consistent moisture.
Tumbler
A compost tumbler is a closed container that rotates on a frame. It can be easier to turn than a traditional pile and may be a good option for a small yard. Tumblers often hold less material, so they may not be ideal for households with large amounts of leaves or yard waste.
Indoor or Small-Space Composting
People living in apartments or homes without yards can consider a worm bin or a countertop collection system. Worm bins use certain types of worms to process food scraps. They require careful setup but can work well in small spaces.
A countertop container is not usually a complete composting system. It is mainly used to collect scraps before transferring them to a community compost program, outdoor bin, or another processing system.
Learn the Difference Between Green and Brown Materials
A healthy compost pile needs a mix of “green” and “brown” materials. These terms describe the general role materials play in the composting process.
Green materials are generally higher in nitrogen. Examples include:
– Fruit and vegetable scraps
– Coffee grounds and paper filters
– Fresh grass clippings
– Fresh plant trimmings
– Small amounts of young weeds without seeds
Brown materials are generally higher in carbon. Examples include:
– Dry leaves
– Shredded plain cardboard
– Plain paper
– Small twigs
– Sawdust from untreated wood
– Dry plant stems
You do not need to measure every ingredient. A useful starting point is to add about two or three parts brown material for every one part green material by volume. If the pile smells unpleasant or looks wet and heavy, add more browns. If it remains dry and breaks down very slowly, add more greens and a little water.
What to Put in Your Compost
Many common household and garden materials can go into a home compost pile. Suitable items include:
– Vegetable and fruit scraps
– Eggshells, crushed into smaller pieces
– Coffee grounds and paper filters
– Tea leaves and some plain paper tea bags
– Leaves and grass clippings
– Plain, uncoated paper and cardboard
– Small amounts of untreated wood chips
– Wilted flowers and noninvasive plant trimmings
Cutting large scraps into smaller pieces can help them break down faster. For example, chop thick vegetable stems, tear cardboard into small pieces, and crush eggshells before adding them.
What to Keep Out
Some materials can attract pests, create odors, or introduce unwanted substances into the finished compost. Avoid adding:
– Meat, fish, bones, or seafood
– Dairy products
– Greasy or oily foods
– Pet waste
– Diseased plants
– Weeds with mature seeds
– Coal or charcoal ash
– Glossy or heavily coated paper
– Treated or painted wood
– Large branches
– Synthetic materials such as plastic
Some experienced composters use small amounts of certain foods that beginners may prefer to avoid. Starting with plant-based scraps, leaves, and plain paper makes the process easier to manage.
Build Your First Compost Pile
Begin with a layer of coarse brown material, such as small twigs or dry leaves. This helps air move through the bottom of the pile. Add a mixture of green and brown materials, then cover fresh food scraps with a layer of brown material.
Covering food scraps helps reduce odors and discourages flies and other pests. Try to keep the pile at least three feet wide and three feet tall if possible. A pile of this size can hold heat more effectively, although smaller piles can still compost over time.
Avoid adding a thick layer of only one material. For example, a large amount of grass clippings may become compacted and slimy. Mix them with dry leaves, shredded cardboard, or other brown materials.
Maintain the Right Moisture and Airflow
Compost organisms need moisture and oxygen. The pile should feel similar to a damp, well-wrung sponge. If it is too dry, decomposition slows down. If it is too wet, the pile may become compacted and develop a strong odor.
Add water slowly when the pile looks dry, mixing as you go. If the pile is soggy, add dry leaves, shredded cardboard, or small twigs. Turning the material with a garden fork or compost tool introduces air and helps distribute moisture.
Turn the pile every week or two, or whenever it appears compacted. Frequent turning is not essential, but it can help the materials break down more evenly.
Solve Common Composting Problems
Bad Smell
A strong smell usually means the pile is too wet, lacks air, or contains too much green material. Add dry browns and turn the pile to improve airflow.
Flies or Pests
Cover fresh food scraps with several inches of brown material. Keep meat, dairy, and greasy foods out of the pile, and check that the bin has a secure lid if pests are a recurring problem.
Compost Is Not Breaking Down
The pile may be too dry, too small, or made mostly of tough materials. Add moisture, mix the contents, and chop large items into smaller pieces. Including a balanced mix of green and brown materials can also help.
Compost Is Too Wet
Mix in dry leaves, shredded cardboard, or straw. Turning the pile can also help release excess moisture and restore airflow.
Know 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, moisture, and how often the pile is turned, compost may take several months or longer to finish. Letting it mature for a little extra time can produce a more consistent product.
Use finished compost as a thin layer around plants, mix a small amount into garden soil, or add it to potting mixes as one component. Avoid planting directly into pure compost, since plants generally grow best in a balanced growing medium.
Start Small and Keep Learning
Composting becomes easier with practice. Begin with a manageable bin and a simple mix of food scraps, dry leaves, and plain cardboard. Pay attention to moisture, odors, and texture, then make small adjustments as needed.
The goal is not to create a perfect pile immediately. By keeping organic materials out of the trash and returning them to the soil, even a beginner can build a useful composting habit at home.