Yes, you can make compost yourself with kitchen scraps and yard waste

Making your own compost is straightforward and costs almost nothing after the initial setup. You collect food scraps and plant material, let them break down over time, and end up with dark, crumbly material you can mix into garden soil or use as mulch. The process works because bacteria and fungi naturally decompose organic matter — you are just creating the right conditions for that to happen.

Most home composters finish a batch in two to six months, depending on how often you turn the pile, what you put in it, and the weather. You do not need special equipment, though a bin or designated pile keeps things tidy and speeds decomposition. The result is free soil amendment that would otherwise cost money to buy.

Key Takeaways

  • A basic compost pile needs only a dry location, brown materials (leaves, straw, shredded paper), green materials (food scraps, grass clippings), and occasional turning or moisture adjustment.
  • Kitchen scraps that work include fruit and vegetable peels, coffee grounds, eggshells, and plant trimmings; meat, dairy, and oils should not go in home compost.
  • You can compost in a straightforward pile on the ground, a wooden bin you build yourself, a purchased plastic bin, or a tumbler that spins to speed the process.
  • Finished compost is ready when it looks dark and crumbly, smells earthy, and you cannot identify the original materials anymore.

What materials you can and cannot compost

Green materials (nitrogen-rich) include fruit and vegetable scraps, coffee grounds with filters, tea bags, fresh grass clippings, and plant trimmings. Crushed eggshells break down slowly but do go in. Avoid glossy or colored paper, which may contain chemicals.

Brown materials (carbon-rich) include dry leaves, straw, shredded newspaper, cardboard, wood chips, and sawdust from untreated wood. These materials balance the moisture and smell that come from greens.

Never add meat, fish, bones, dairy, oils, fats, or pet waste. These attract rodents, create odor problems, and can harbor pathogens. Diseased plants and weeds with seeds should also stay out. Glossy paper, treated wood, and synthetic materials do not break down.

Three ways to set up a compost system

Pile on the ground: Choose a dry, shaded spot in your yard. Layer brown and green materials directly on soil, keeping the pile at least 3 feet wide and 3 feet tall so it heats up enough to decompose quickly. Turn it with a shovel every week or two to speed the process, or leave it undisturbed for four to six months. This method is free but takes up space and can attract animals.

Wooden bin: Build a straightforward box from untreated wood pallets or boards, roughly 3 feet on each side. Screw or nail the sides together and leave the bottom open so compost touches soil. This contains the pile, looks neater, and still allows air flow. Cost runs from nothing (if you have scrap wood) to fifty dollars for new materials.

Plastic bin or tumbler: A purchased bin or tumbler costs thirty to two hundred dollars depending on size and features. Bins are stationary; tumblers spin to mix materials faster. Both keep rodents out better than open piles and work well in small yards. Tumblers can finish compost in six to eight weeks if you turn them regularly, but they hold less material than a pile.

The basic steps to start composting

Start with a layer of brown material four to six inches deep on your chosen spot or in your bin. Add a layer of green material two to three inches deep. Repeat layers until your pile is at least 3 feet tall, or until your bin is full. Water each layer lightly so it feels like a wrung-out sponge — damp but not soggy.

Once you have built your pile, add new scraps as you generate them. Bury them under brown material to reduce smell and flies. If your pile smells like ammonia or rotten eggs, add more brown material and turn it. If it is not heating up or breaking down, it may be too dry or too compacted — add water or turn it more often.

Turn the pile every one to two weeks by moving material from the outside to the center, where it decomposes fastest. If you do not turn it, decomposition takes longer but still happens. Either way, stop adding new material once you want to harvest — this lets the finished compost cure for a few weeks.

How to know when compost is ready to use

Finished compost is dark brown or black, crumbly, and smells earthy like soil. You should not be able to recognize the original materials — no visible fruit peels, leaves, or paper. If you see large pieces, sift them out and return them to a new pile.

Compost that still has recognizable material in it is not finished. It will continue to break down in your garden, but it may tie up nitrogen as it does, which can slow plant growth temporarily. If you want to use it right away, screen out the large pieces or wait another month or two.

Common problems and how to fix them

Smell: A strong ammonia or rotten-egg smell means too much green material or too much moisture. Add brown material (dry leaves, shredded paper, straw) and turn the pile. Reduce watering or add drainage holes if using a bin.

Slow decomposition: If nothing is breaking down after two months, the pile may be too small, too dry, or lacking air. Make sure it is at least 3 feet on each side, water it so it feels damp, and turn it weekly. A pile smaller than 3 feet takes much longer to heat up.

Rodents or insects: Do not add meat, dairy, or oils — these attract pests. Bury food scraps under brown material. If you already have a problem, stop adding scraps temporarily and turn the pile frequently to expose and disrupt nests.

Wet, matted pile: Too much moisture or too much green material creates a dense, airless mass. Add brown material, turn it, and reduce watering. may support your bin or pile has drainage.

What to do with finished compost

Mix finished compost into garden beds at a depth of two to four inches before planting. Use it as mulch around trees and shrubs — spread two to three inches around the base, keeping it a few inches away from the trunk. Add it to potting soil for container plants at a ratio of one part compost to two parts store-bought soil. You can also top-dress lawns with a thin layer to improve soil over time.

Store extra compost in a bin or pile covered loosely with a tarp to keep it from drying out or getting waterlogged. It will keep for months or longer without losing value.

Frequently Asked Questions

How long does it take to make compost?

A well-maintained pile with regular turning can produce finished compost in two to three months. An undisturbed pile takes four to six months. Tumblers can finish in six to eight weeks. Speed depends on pile size, material mix, moisture, temperature, and how often you turn it.

Can I compost in an apartment or small space?

Yes. Use a small plastic bin under the sink or on a balcony, or try vermicomposting (composting with worms in a shallow bin). Both work indoors if kept moist and not overfilled. Finished compost is ready in two to four months with vermicomposting.

Do I need to add anything to speed up composting?

No. Compost happens naturally without additives. Turning the pile regularly and keeping the right moisture level are more important than any product. Commercial compost starters are not necessary.

What if I do not have a yard?

Apartment dwellers can use a small bin indoors, vermicompost with worms, or bokashi fermentation (which breaks down food in an airtight bucket before finishing in soil). Some cities also run community gardens with shared compost piles.

Can I compost diseased plants?

Home compost piles usually do not get hot enough to kill plant diseases. Leave out plants with blight, mildew, or other infections. Compost them only if your pile reaches 140°F or higher, which requires careful monitoring and turning.