Wait, fabrics that decompose in our backyards? Yes! It’s perfectly possible. In this guide, I will cover all backyard composting fabrics and go over the entire process of decomposing clothes at home. Plus, I’ll help you get rid of your non biodegradable fabrics too! Unfortunately, nylon and polyester are NOT decomposable clothing materials. But there are many sustainable solutions for those textiles too.
For more educational content, check out the most shocking greenwashing examples in the fashion industry and some eye-opening child labor statistics.
Our Full Guide To Fabrics That Decompose at Home
Have you ever thought about where your clothes go after they’ve outlived their “outfit of the day” status? If you’re like most people, they probably end up in a donation bin, a drawer full of “maybe-I’ll-wear-this-again” items, or worst of all, the trash. But what if I told you that some of your clothes could actually feed your garden? Yup, that T-shirt you’ve worn to death might just be the next best thing for your backyard compost pile.
When I first learned that biodegradable fabrics could decompose 6 years ago, I was shook. It got me thinking: We compost banana peels, coffee grounds, and grass clippings—but what about the clothes made from natural fibers? Yes, some decomposable clothing materials
can safely break down right alongside your kitchen scraps. It’s like turning your fashion faux pas into fertilizer!
So, if you are someone who’s looking to reduce waste (and your carbon footprint) by composting more than just fruit and veggie peels, then this post is for you. Not all fabrics play nice with the compost pile, but there are plenty that do, and I’m here to help you figure out which ones are compost-friendly. We’ll go over the fabrics that decompose easily, the ones that don’t (sorry, polyester), and some insider tips to make sure you’re doing it right.
Let’s get into it. Here is my full guide to backyard composting fabrics and my best tips on decomposing clothes at home.
Also Read: Best non-toxic garden hoses
Biodegradable vs. Compostable Fabrics
First, let’s clear up a little confusion. People often use “biodegradable” and “compostable” like they’re interchangeable, but they’re not quite the same thing. Here’s the scoop:
- Biodegradable fabrics: These are materials that can break down naturally over time through the action of bacteria, fungi, or other microorganisms. Pretty much every natural fabric will biodegrade eventually.
- Compostable fabrics: This is a step up. These fabrics break down into non-toxic components (like water, carbon dioxide, and biomass) within a specific timeframe and under the right composting conditions. Think of them as the MVPs of the decomposition world.
To put it simply, all compostable fabrics are biodegradable, but not all biodegradable fabrics are compostable. Some fabrics may break down but leave behind harmful residues, which isn’t what we want in our backyard compost piles.
What Makes a Fabric Compost-Friendly?
- Fiber Type: This is the big one. Natural fibers (like cotton, linen, and hemp) tend to break down faster than synthetic ones (like polyester and nylon). Plant-based and animal fibers are more in tune with nature’s recycling systems, so they return to the earth more gracefully.
- Chemical Treatments: Even if you’ve got natural fibers, the process isn’t always as clean as it sounds. Fabrics that have been dyed, treated with flame retardants, or finished with water-resistant coatings might take longer to decompose—or worse, leave behind chemicals. For composting, organic fabrics (that are chemical-free) are the gold standard.
- Weave and Thickness: A tightly woven, thick fabric (think denim or canvas) takes longer to break down than something light and airy, like cotton gauze. If you want to speed things up, cutting fabrics into smaller pieces gives microbes a head start.
- Composting Conditions: Even if you have the right fabric, you need the right composting environment. Keep your compost pile moist but not soggy, add oxygen by turning it regularly, and balance your “greens” (food scraps, fresh grass) with “browns” (leaves, fabric, paper). Too much of one and you’ll slow down the decomposition party.
Natural vs. Synthetic Fibers
Untreated, natural fibers are 100% compostable because they are renewable sources and don’t need special chemical processes to break down. Cotton, wool, linen, hemp, and silk are all biodegradable fabrics that’ll return to the earth, especially if they haven’t been heavily treated or blended with synthetics.
On the flip side, synthetic fibers like polyester, nylon, acrylic, and spandex are made from petroleum-based products (aka plastic). They can take hundreds of years to decompose if they ever do. While some synthetic blends are marketed as “biodegradable,” they often just break down into microplastics—tiny particles that stick around in the environment long after the fabric has disappeared.
To give you an idea: studies have shown that polyester clothing takes around 20 to 200 years to degrade, depending on conditions, while natural cotton can break down in as little as 5 months in a well-maintained compost pile. So, when it comes to eco-friendly textiles, going natural and choosing to invest sustainably is a no-brainer.
Biodegradable Fabrics That Decompose in Backyard Compost
1. Cotton
Cotton is the king of natural fibers, and the good news is that it’s super compostable—as long as it’s untreated. Natural, organic cotton will break down in your compost pile in about 5-6 months under the right conditions. The key here is to make sure it’s free of harmful chemicals like dyes, bleach, or water-resistant finishes.
- Organic Cotton is the best bet. It’s grown without synthetic pesticides or fertilizers, meaning it’s cleaner for your compost. Conventional cotton, while still compostable, may leave behind traces of the chemicals used in its production, so keep that in mind if you’re trying to keep things as eco-friendly as possible.
- How to Compost: Cut your cotton fabrics into smaller pieces to speed up the process. Toss them into your pile, and they’ll decompose nicely alongside your food scraps and yard waste.
2. Linen (Flax)
Linen, made from the flax plant, is another superstar in the composting world. This lightweight, breathable fabric is not only one of the oldest fabrics in the world but also one of the fastest to decompose. In the right conditions, linen can break down in as little as 2 weeks to 2 months—faster than most other fabrics.
- Bonus Points: Linen doesn’t need a ton of water to grow and is often produced with fewer chemicals than other fabrics, which makes it a sustainable choice for both your wardrobe and your compost pile.
- How to Compost: Like cotton, cut your linen clothes into smaller pieces. As a natural, untreated fabric, it’ll disappear into your compost in no time.
3. Hemp
Hemp is like the strong, eco-friendly cousin of cotton. It’s one of the most durable natural fibers, but it also happens to be compostable. Hemp fabrics can take a bit longer to break down compared to cotton or linen—think 6 months to 1 year, depending on the thickness and treatment.
The good news is that hemp is naturally resistant to pests, so it doesn’t require the heavy use of pesticides or fertilizers, making it a very clean, sustainable fabric. Plus, hemp crops are low-impact, requiring less water and land than cotton.
- How to Compost: Hemp fabric can be thick and tough, so chop it up into small pieces before adding it to your compost pile. Make sure the fabric is natural hemp and not blended with synthetics to ensure it breaks down properly.
4. Bamboo Fabric
Bamboo might sound like the perfect compostable fabric—it’s fast-growing, renewable, and plant-based. But here’s where it gets tricky: Most bamboo fabrics on the market are bamboo rayon or viscose, which undergo a chemical-heavy process to transform the raw plant into fabric. This type of bamboo fabric isn’t compost-friendly due to the synthetic treatments involved.
However, if you manage to get your hands on natural mechanically processed bamboo (it’s rarer, but it exists), you can compost it just like cotton or hemp.
- How to Compost: If it’s natural bamboo, treat it like any other plant-based fabric—cut it up and toss it in. If it’s bamboo rayon, it’s better off in the donation bin or upcycled into something else.
5. Jute
Known for its strength and rustic look, jute is often used to make burlap sacks, ropes, and rugs. If you’ve got any jute products lying around, the good news is they’re great candidates for backyard composting.
Jute is a plant-based fabric, which means it’s naturally compostable and breaks down fairly quickly in the right conditions. With minimal chemical processing, it’s a zero-waste fabric that aligns perfectly with an eco-friendly lifestyle. In your compost pile, jute decomposes in about 1-2 months, which is faster than most other natural fibers.
- How to Compost: Like cotton, cutting your jute into smaller pieces will help speed up the decomposition process. Jute tends to be thick, so breaking it down into manageable strips or squares ensures it integrates smoothly into your compost. It’ll decompose alongside other plant-based fabrics and yard waste, leaving behind nutrient-rich organic matter.
6. Tencel (Lyocell)
Tencel, also known as lyocell, is a more recent addition to the world of compostable fabrics. Made from the wood pulp of trees like eucalyptus, it’s processed in a closed-loop system that minimizes waste and chemicals. This makes Tencel an eco-friendly choice not just in production, but also in its ability to decompose at home.
While Tencel might take longer to compost—usually around 6 months to a year—it’s still a great option for backyard composting fabrics. This fabric, being biodegradable, breaks down naturally without leaving harmful residues, making it a favorite in the world of sustainable fashion.
- How to Compost: Cut Tencel fabrics into smaller pieces and toss them into your compost pile, ensuring there’s a balance of greens and browns to speed up decomposition. Be sure your Tencel clothing isn’t blended with synthetic fibers, as that can disrupt the composting process.
7. Coconut Coir
Coconut coir, which comes from the husk of coconuts, is another natural, biodegradable material that can be composted at home. This fiber is often used for ropes, mats, or even plant pot liners. Since it’s a plant-based fabric, it decomposes similarly to other natural fibers, adding valuable organic matter to your compost pile.
Coconut coir might take a bit longer to decompose than some other natural fibers, clocking in at around 6-9 months. But because it’s made from plant cellulose, it’s compostable and won’t leave behind any synthetic nasties.
- How to Compost: To help coconut coir break down faster, shred it into smaller pieces before tossing it in the compost bin. Coir is a bit tough, so cutting it down helps speed up the process and ensures even decomposition.
8. Kapok
Kapok might not be the first fabric that comes to mind, but it’s one of the most fascinating. This fiber comes from the seed pods of the kapok tree and is commonly used as a filling for pillows and cushions. Lightweight, soft, and naturally resistant to moisture, kapok is a great choice for people looking for compostable, organic fabrics.
Since kapok is plant-based, it’s safe to compost at home, breaking down over a period of about 6 months. However, if kapok is treated with any chemicals or blended with synthetic materials, you’ll want to avoid composting it.
- How to Compost: If you’re composting kapok-filled pillows or cushions, you’ll need to break the fabric cover and inner fiber into small pieces. This ensures that the natural fibers decompose efficiently and contribute to the zero-waste fabrics in your compost pile.
9. Wool
Wool, whether it’s from sheep, alpaca, or other animals, is not only cozy but also compostable. Untreated, 100% wool fabrics can break down in around 6 months to 1 year depending on the thickness and the composting conditions. Wool is protein-based (keratin, to be specific), which makes it highly biodegradable.
However, wool that’s been treated with chemicals (like mothproofing or waterproofing) will take much longer to break down and may leave behind unwanted residues. Stick with natural, untreated wool for the best composting results.
- How to Compost: Shred the wool into small bits to help it break down faster. Since it’s a “brown” material in composting terms, it helps to pair it with “greens” like kitchen scraps or fresh grass to maintain the balance.
10. Silk
Silk might seem too luxurious to toss in your compost, but it’s actually one of the easiest animal fibers to decompose. Natural, untreated silk breaks down in about 1 to 3 months, making it a surprisingly compost-friendly option.
Just be sure you’re working with 100% natural silk—synthetic silks, or silk blends, won’t compost properly and could end up releasing microplastics into your soil.
- How to Compost: Like with other fabrics, cutting silk into small pieces will speed up the process. As long as it’s pure silk, it’ll blend into your compost.
Are Blended Fabrics Compostable at Home?
In most cases, not! Many blended fabrics contain synthetic fibers like polyester, nylon, acrylic, or spandex. These materials are essentially plastics. Plastics don’t decompose in the same way natural fibers do because microorganisms can’t break them down. Instead, synthetics break apart into smaller and smaller pieces, eventually turning into microplastics. These tiny plastic particles can persist in the environment for hundreds to thousands of years, polluting soil and waterways.
Even in blended fabrics where synthetics are only a small percentage, the fibers tend to decompose at different rates. For example, a cotton-polyester blend might start to break down where the cotton fibers naturally degrade, but the polyester remains intact. This inconsistency makes blended fabrics tricky to compost because what seems to be breaking down is actually leaving plastic remnants in your compost pile.
Some blended fabrics are treated with chemical finishes, dyes, or coatings to enhance durability, water resistance, or other features. When composted, these chemicals can leach into the soil, contaminating your compost and potentially harming plants or soil organisms. Even if the natural fibers decompose, these chemicals could stick around in your soil.
How to Dispose of Synthetic Fabrics Sustainably
Upcycle or Repurpose
Instead of composting blended fabrics, think creatively about ways to upcycle or repurpose them. Here are a few ideas:
Make rags or cleaning cloths: Old T-shirts, leggings, or towels that are a blend of natural and synthetic fibers make great reusable cleaning rags. You’ll save money and keep those fabrics in circulation longer.
Craft projects: Turn old blended fabric clothes into DIY projects. You can make everything from tote bags to patchwork quilts, or even sustainable Halloween decor. Another great idea is to repurpose them into zero-waste gift wrapping materials. The sturdiness of blended fabrics, thanks to the synthetic component, makes them perfect for crafting.
Dog or cat bedding: If you have pets, old blended fabrics can be used to create comfy bedding. Simply stuff a pillowcase or sew fabric scraps together to create a soft resting spot for your furry friends.
Donate Them
If the blended fabric clothing is still wearable, consider donating it to charity or secondhand stores. While these fabrics might not be compostable, extending their life cycle by passing them on to someone else reduces waste. Keep in mind that many thrift stores do accept donated fabrics, and some even partner with textile recycling programs.
Look for Textile Recycling Programs
Some organizations specialize in recycling blended fabrics. The fibers can be broken down mechanically or chemically to create new materials. Companies like Terracycle, and The Renewal Workshop offer programs to help consumers recycle textiles that can’t be composted. These organizations often accept hard-to-recycle items like blended fabrics, turning them into insulation, carpet padding, or new textiles.
Use for Non-Compostable Garden Projects
If you can’t compost blended fabrics, you can still use them in your garden in non-soil applications. For instance:
Weed barriers: Old, synthetic-blended fabrics can be placed under mulch or gravel as a weed barrier in your garden. While the synthetic part won’t break down, it can help prevent weeds from sprouting without the need for store-bought plastic landscaping fabric.
Garden ties: Cut blended fabrics into strips and use them as ties for supporting plants like tomatoes or vines. The synthetic fibers make these ties durable and reusable.
Tips for Composting Biodegradable Fabrics at Home
Now that you know which fabrics can safely decompose in your backyard compost, let’s get into the nitty-gritty of how to do it right. Composting fabrics at home isn’t as simple as tossing a T-shirt into the pile and calling it a day. To ensure your natural fibers break down efficiently, you’ll need to follow a few basic tips. These will help speed up decomposition, keep your compost pile balanced, and avoid any nasty surprises (like rogue microplastics!).
1. Only Compost 100% Natural Fabrics
First things first: stick to 100% natural fibers. If a fabric isn’t pure cotton, wool, hemp, or another compostable material, it’s best to leave it out of the pile. Double-check the labels on your clothes, bedding, or towels before composting. Even a small percentage of synthetic fiber (like spandex or polyester) can leave behind microplastics, which you don’t want in your garden soil.
My Best Tip: If the label says something like “95% cotton, 5% elastane,” it’s a no-go for composting. Stick with natural fibers only for best results.
2. Cut Fabrics into Small Pieces
The smaller the fabric, the faster it breaks down. Large sheets of fabric or whole garments will take much longer to decompose, so grab your scissors and cut them into smaller strips or squares before composting. Microbes in your compost pile will have an easier time breaking down smaller pieces because there’s more surface area for them to munch on.
- Cutting Size: Aim for pieces no larger than a few inches. If you’ve got the patience, smaller is better! Shredding is ideal for thick materials like denim or wool, as it speeds up the process.
My Best Tip: If you’re composting multiple garments or pieces of fabric, try layering them throughout your pile to avoid clumping, which can slow down decomposition.
3. Remove Any Non-Compostable Parts
Clothing often comes with non-compostable components, such as zippers, buttons, elastic bands, or tags made of synthetic materials. These items won’t break down and could cause contamination in your compost pile. Make sure to remove these before composting.
- Zippers and Buttons: Remove metal or plastic zippers, buttons, and fasteners.
- Elastic Bands: Elastics or spandex elements found in waistbands or cuffs should be cut out. These synthetic materials won’t biodegrade.
- Sewing Thread: Some garments are stitched with polyester thread, which won’t break down. While it’s hard to remove every bit of thread, try to minimize the amount of synthetic material going into your compost.
My Best Tip: Keep a small bag to collect zippers and buttons for reuse in future DIY projects!
4. Balance with “Greens” and “Browns”
When composting fabric, it’s important to balance the carbon-rich fabric with nitrogen-rich materials to keep your compost healthy. Natural fibers, like cotton and wool, are considered “browns” (carbon-rich materials) in the composting world. To avoid an imbalance, you’ll need to pair them with “greens” (nitrogen-rich materials), like food scraps, grass clippings, or coffee grounds.
- Composting Ratio: A good rule of thumb is a 3:1 ratio of browns to greens. So for every 3 parts of fabric, leaves, or paper (browns), you should add 1 part of food waste or fresh plant matter (greens). This keeps your compost from becoming too dry or too wet and ensures proper decomposition.
My Best Tip: If your compost starts to smell bad, it’s usually a sign you need more browns. If it’s not breaking down fast enough, try adding more greens or turning it more often.
5. Turn Your Compost Regularly
Composting fabric is a slower process than composting food scraps, so keeping the pile well-aerated is essential. Turning your compost helps introduce oxygen, which boosts the activity of the microorganisms breaking down the fabric.
- How Often to Turn: Aim to turn your compost every 1-2 weeks. This will mix the materials and prevent compacting, which can slow decomposition.
- Check for Moisture: While turning, check the moisture levels in your pile. Fabrics need moisture to break down, but your compost shouldn’t be soggy. You’re aiming for the consistency of a wrung-out sponge.
My Best Tip: If your compost is too dry, add water or more green materials. If it’s too wet, mix in dry brown materials like leaves, cardboard, or extra fabric.
6. Create the Right Composting Environment
Fabric decomposition can be temperature-sensitive. Microbes that break down natural fibers are most active in warm, moist environments, so maintaining a well-balanced compost pile is key.
- Temperature: Aim for a pile that’s between 120°F and 160°F. This is the optimal range for rapid decomposition. In cooler conditions, fabrics will still break down, but the process will take much longer.
- Location: If possible, place your compost pile or bin in a sunny spot to encourage warmth. This helps speed up the breakdown process, especially during cooler months.
My Best Tip: If your compost pile doesn’t heat up naturally, you can insulate it with straw or hay to retain heat, especially in colder climates.
7. Monitor the Decomposition Process
Composting fabrics takes more time than composting food scraps or yard waste. While kitchen waste might break down in a matter of months, fabrics can take anywhere from 3 months to a year to fully decompose, depending on the material, conditions, and how you’ve prepped it.
- Cotton and Linen: These typically take around 3-6 months in a well-maintained compost pile.
- Wool and Silk: These can take 6 months to a year to break down.
- Thicker Fabrics: Denser materials like denim or canvas take longer than lightweight fabrics, so patience is key.
My Best Tip: Keep a log or make occasional checks on the fabrics in your compost. If decomposition seems slow, try cutting fabrics into smaller pieces, adjusting moisture levels, or adding more greens.
Final Thoughts On Fabrics That Decompose At Home, in Your Backyard
Composting fabrics at home is a great way to reduce textile waste and create nutrient-rich compost for your garden. With the right techniques—like cutting fabrics into smaller pieces, maintaining a good balance of greens and browns, and guaranteeing proper airflow and moisture—you can turn natural fibers into valuable compost material. Just remember: stick to 100% natural fabrics, avoid synthetics and chemical treatments, and give your compost pile a little attention to keep things breaking down smoothly.
If you follow these tips, your old clothes and fabrics will return to the earth where they belong, helping you close the loop on waste and live a little more sustainably.
Konstantina Antoniadou is an expert sustainability writer, certified in Chemicals and Health by Johns Hopkins University, where she focused on the toxicity of commonly found household chemicals and their health impacts. She has also completed specialized studies in Sustainable Fashion (Copenhagen Business School), Business Models for Sustainability (BMS), and Sustainable Development Goals (University of Copenhagen), deepening her expertise in the connection between personal choices and global environmental change. With years of experience as a senior writer and researcher, Konstantina now leads our reviews of non-toxic home products, beauty and skincare brands, and sustainable fashion. K. is also the creator of the popular 7-Day Non-Toxic Living Challenge, downloaded over 2,000 times and praised for its accessible, science-backed tips.
