Tips & Tricks
Expert Tips for Composting
Composting is one of the most rewarding ways to reduce waste while creating nutrient-rich soil for your garden. Whether you’re just starting or looking to optimize your process, these expert tips and tricks will help you master the art of composting. Learn how to speed up decomposition, save time and money, troubleshoot common issues, and produce high-quality compost that your plants will love.
Getting Better Faster
Maintain the Perfect Carbon-to-Nitrogen Ratio
The ideal ratio of carbon-rich “brown” materials to nitrogen-rich “green” materials is approximately 30:1 by weight, or roughly 3:1 by volume. Browns include dry leaves, straw, and shredded paper. Greens include grass clippings, kitchen scraps, and plant trimmings. Getting this balance right accelerates decomposition significantly because microorganisms work most efficiently when they have the proper nutrient balance.
Chop Materials Into Smaller Pieces
Breaking down materials before adding them to your compost bin increases the surface area available for microorganisms to colonize. Use a shredder, mulching mower, or simply chop materials with a shovel. Smaller pieces decompose much faster—sometimes cutting your composting time in half compared to adding whole leaves or large branches.
Turn Your Pile Regularly
Turning your compost every 7-10 days introduces oxygen, which accelerates microbial activity and decomposition. Use a garden fork to flip the pile from outside to inside, bringing cooler outer materials into the hot center. Hot compost piles that are turned frequently can produce finished compost in 6-8 weeks, compared to 6-12 months for passive piles.
Keep Your Compost Moist
Microorganisms need moisture to thrive. Your compost should feel like a wrung-out sponge. If it’s too dry, decomposition slows dramatically. Water your pile regularly, especially during dry periods. If it becomes waterlogged, turn it more frequently to introduce air and help evaporate excess moisture.
Add Compost Accelerator or Finished Compost
Commercial compost accelerators or a shovelful of finished compost introduce beneficial microorganisms to your pile, jump-starting the decomposition process. This is particularly helpful if you’re starting a new pile. Alternatively, add aged manure from herbivores, which is naturally rich in microbes and nitrogen.
Time-Saving Shortcuts
Use a Three-Bin System for Continuous Production
Instead of one pile, set up three bins: one for active decomposition, one for maturing compost, and one for collecting fresh materials. This system allows you to start a new batch while the previous batch finishes, ensuring you always have compost ready to use. You’ll spend less time managing one large pile and more time harvesting finished product.
Mow Grass Before Composting
Instead of adding whole grass clippings, mow them finely or mulch them in place on your lawn. If you do compost grass, run it through a shredder first. Pre-shredded materials decompose much faster and are less likely to clump, eliminating the need for constant turning to prevent compaction.
Save Kitchen Scraps in a Countertop Container
Keep a small compostable container on your counter and add kitchen scraps throughout the day. Once or twice a week, dump the accumulated scraps into your compost bin. This eliminates the need to make constant trips to your outdoor bin and reduces the time spent managing scraps throughout the day.
Create a “Chop and Drop” System
Instead of moving materials to a distant compost bin, chop plant material where it grows and leave it to decompose in place. This works especially well for annual plants at the end of the season. The material breaks down faster in soil, and you avoid the labor of transport and pile management.
Money-Saving Tips
Source Free Materials Locally
Visit neighborhood leaf piles, coffee shops for grounds, breweries for spent grain, and grocery stores for produce scraps. Many communities also offer free wood chips from municipal tree trimming programs. Horse stables provide excellent aged manure. By sourcing materials for free, you eliminate the cost of compost accelerators and purchased amendments while reducing what goes to landfills.
Build Your Own Compost Bin
You don’t need an expensive commercial bin. Create an effective compost container from wooden pallets, wire mesh, or concrete blocks. A simple 3’x3’x3′ bin made from pallets costs minimal money but performs as well as bins costing hundreds of dollars. Many suppliers give away pallets for free.
Make Your Own Compost Tea
Rather than buying expensive liquid fertilizers, brew compost tea from your finished compost. Steep finished compost in water for 24-48 hours, strain, and use the nutrient-rich liquid to fertilize houseplants and gardens. This extends your compost’s value and provides multiple uses from a single batch.
Skip the Compost Bin Entirely
Passive composting requires no bin at all—simply pile materials in a designated garden area and let nature take its time. While slower than managed composting, it costs nothing and requires no equipment investment. Perfect for large properties or those with patience to wait 12-24 months for finished product.
Quality Improvement
Layer Materials Strategically
Alternate layers of brown and green materials in thin, even layers. This ensures even distribution of nutrients and moisture, resulting in more uniform decomposition and higher-quality finished compost. Aim for 4-6 inch layers, alternating between browns and greens throughout the pile.
Avoid Problem Materials
Never compost meat, dairy, oils, diseased plants, or chemically treated wood. These materials either attract pests, introduce pathogens, or contain toxins that contaminate your compost. Stick to plant-based materials, eggshells, coffee grounds, and aged manure for the highest quality final product.
Let Compost Age Before Using
Even when your pile looks finished, let it cure for 2-4 weeks. This allows final decomposition to complete and ensures the product is stable and ready to use in gardens. Partially decomposed compost can actually tie up nitrogen in soil as it continues breaking down.
Sift Your Finished Compost
Screen finished compost through a quarter-inch mesh to remove large particles and create a fine, uniform product. The larger pieces can return to a new batch. Sifted compost is easier to apply, more visually appealing, and integrates better into garden soil and potting mixes.
Troubleshooting Common Problems
- Pile Smells Bad: Foul odors indicate anaerobic conditions. Turn your pile immediately to introduce oxygen, and add brown materials to improve drainage and aeration.
- Compost Isn’t Decomposing: Check moisture levels and carbon-to-nitrogen ratio. The pile may be too dry, too carbon-heavy, or lack sufficient nitrogen. Add green materials and water, then turn regularly.
- Pile Attracts Flies or Rodents: You’re likely adding meat, dairy, or oils. Remove any problem materials immediately. Ensure all food scraps are buried under at least 8 inches of brown material, and consider using a covered bin.
- Pile is Too Hot or Burning: An extremely hot pile may be decomposing too quickly or becoming anaerobic. Spread it out, reduce nitrogen additions temporarily, and ensure adequate moisture.
- Finished Product is Still Lumpy: Sift the compost to remove large pieces, or let it age longer. Lumpy compost typically needs additional time or moisture to fully break down remaining woody material.
- Compost is Muddy and Compacted: Your pile is too wet or not being turned. Turn it immediately, add brown materials, and reduce watering until it reaches the proper consistency.