Can You Compost Hair? (2 Effective Ways, Tips & Other Uses)

Hair is the fastest growing tissue in the body, and all the hair that shreds are dead. So what do you do with these dead strands? Well, you might know it is popularly used to make wigs and hair extensions, but did you know it holds some purpose for your plants too.

If you have a garden, you would be happy to know that you can use hair as a mulch or fertilizer. But can you really compost hair? Let’s dig deep into it.

Hair is compostable as it’s the best source of Nitrogen and protein. Additionally, it has excellent water holding capacity and can deter pests from the compost. To keep them from clumping in the compost pile, mix hair with other green materials and turn the pile frequently.

How to Compost Hair?

Agricultural crops or garden plants depend on fertilizers to grow, be it synthetic fertilizers like Urea, DAP, MOP, or organic fertilizers like Farm Yard Manure (FYM) or compost. And organic gardening is a craze nowadays. The green thumbs love to compost all the organic waste from their home and turn it into rich-brown soil.

Hair is among the most underutilized waste that is extremely nutritious for plants. It can be composted similar to other composting materials via regular cold composting, hot composting, and vermicomposting.

Any composting method requires a balance between brown and green materials along with oxygen and water to decompose efficiently.

Green materials are tender, immature organic materials, rich in Nitrogen, and contain water. These include hair and fur, nail clippings, fresh yard trimmings (weeds, grass clippings, flowers), and kitchen scraps (tea bags, eggshells, coffee filters, corn cobs, fruit, and vegetable scraps).

Whereas the brown materials are mature, dry, and carbon-rich materials and include dry yard waste like wood shavings, dry leaves, pine needles, cotton balls, sawdust, newspaper, cardboard, paper bags, paper towel, and nutshells.

So, now that you know hair is a green material, you can replenish your soil quality by composting hair through worm farms or using a compost bin.

However, before composting them, you need to follow these two critical steps:

  • Collect Chemical-Free Hair: Collect the hair from your hairbrushes or salons that are free from chemicals like dyes or hair spray. 
  • Shred the Hair: Cut the hair into small pieces if possible. This will prevent the hair from forming clumps in the compost pile and will break down quickly.

Composting Hair Using Compost Bin/Pile

As the name implies, the hot composting method requires a high temperature to break down the materials. If you consider using your pre-existing backyard composting setup, you need to sprinkle the hair evenly over the other composting materials and give it a quick mix.

While if you are looking to start composting from scratch, get a compost bin or allocate a place in your backyard to pile up the materials and follow this guide to compost hair.

Hot Composting Method

Step 1. Mix the Hair with other Greens

Before composting, chop the food waste into small pieces and mix the hair clippings with them to ensure there are abundant green materials in the compost. This will make your composting process quick and easy.

Step 2. Start Making Compost Bed Using Brown Materials

Spread the brown materials evenly into a thick layer and dampen them with water.

Step 3. Add your greens containing the hair

Now add a layer of green materials along with the hair. When spreading the hair in the compost bin, make sure there are no lumps.

Step 4. Alternate between green and brown materials

Follow the process by layering the green and brown material alternatively and seal the compost heap with a firm layer of soil and manure on the top.

Ensure that you are not dumping green materials exorbitantly into the compost bin as the hair contains high levels of Nitrogen. To achieve the best composting rate, You need to maintain a C: N ratio of 30:1.

Step 5. Turn the compost timely

Turn your compost with a pitchfork 3-4 times in the first week of adding the hair. This prevents lumps from forming and obstructing airflow in the compost. Later, turn the compost heap 2-3 times a week to mix and aerate the compost.

If the steps outlined above are followed correctly, your finished compost should be ready to incorporate into the soil within 1-2 months.

Composting Hair via. Vermicomposting

Worms love hair because it is soft and elastic and provides them with proteins. When used in moderation, it aids worms in acting on waste and releasing worm castings.

If you have a wormery, simply add the shredded hair to your worm bin. But if you are a beginner, make yourself ready with a bin and some shredded hair and follow the below-mentioned steps.

Vermicomposting of Cherry Pits

Step 1. Prepare the Bedding

Shred paper and make bedding for the worms by spreading it in the bottom of the worm bin. Irrigate the bedding and spread soil evenly over it.

Step 2. Add Food Scraps

Add green materials along with hair and cover the bin. Leave the materials to decompose for two weeks.

Step 3. Add the Worms

Now, add a handful of red wigglers to the worm bin and cover them with damp gunny bags. These worms will move towards the food waste and hair and eat the bacteria feeding on their food.

Step 4. Maintain the Worm Bin

Add food scraps and water as needed. Turn the worm bin occasionally to aerate the wormery and speed up the decomposition process.

Vermicompost will be ready to feed your garden soil within two months. You can collect the worm castings and start a new batch once you harvest the finished compost.

Warning: Avoid adding long hair to your worm bin. The worms may get tangled in them.

Can You Compost Dog Hair?

Composting dog hair is a great way to recycle and reuse your pet hair. Dog hair is an organic material, just like human hair, and is loved by plants. It is packed with Nitrogen and proteins and breaks down within 1-2 months in ideal conditions.

Dog hair does not have any downsides and does not attract any harmful pathogens or produce a foul odor.

To compost dog hair or any pet hair, sprinkle the fur in thin layers over other green materials and cover it with browns. Also, mix the compost well to avoid forming clumps and speed up the decomposition process.

A Clump of Dog Hair

However, there are some measures. Do not add the dog fur to your compost if your dog is treated against topical parasites like flea and ticks. Secondly, keep chemically treated dog hair away from your compost.

You should also avoid adding dog hair when it is vacuumed from synthetic carpets, as the carpets contain microplastics and do not break down in the compost pile.

Benefits of Composting Hair

According to the Journal of Waste Management, human hair is one of the highest Nitrogen containing (~ 16%) organic materials in nature as it is made of protein (it is considered that cattle dung contains only 0.2-0.3% of Nitrogen). So, human hair is an excellent soil conditioner and is a great source of organic matter for the soil.

Here are a few benefits you should know to consider composting hair.

Fallen Hair Removed From Bathroom Drain
  • Apart from Nitrogen, hair contains some essential macronutrients like Hydrogen, Oxygen, Carbon, and Sulphur and helps in plant growth.
  • Hair retains water better than the soil (four times more than the soil) and helps bacteria in the compost to work efficiently.
  • Composting hair keeps bugs and small critters away from the compost.
  • Hair also improves the microbial action in the soil, thereby increasing soil aeration.
  • Composting hair minimizes waste going to landfills and reduces carbon footprint.
  • Composting hair will prevent the problem of blocking the drains in your bathrooms.
  • Composting hair is easy and reduces the use of chemical fertilizers.

Additional Tips for Composting Hair

Composting is an easy and sustainable way to improve soil quality and structure. You can compost hair and keep this organic waste from going to landfills. There are no downsides to composting hair, except that it takes time to decompose.

However, you need to be cautious while composting them. Following are a few tips you need to consider while composting hair:

  • Do not leave the hair in lumps. This will cause compaction and reduce the airflow in the compost pile.
  • Add hair in moderation and mix it with other green materials.
  • Wetting the hair before adding it to the compost pile can help accelerate the decomposition process.
  • Do not use chemically treated or dyed hair for composting.
  • Avoid using hair from wigs as they are made of synthetic materials and glue.
  • Turn the compost regularly to aerate the compost pile.

Other Uses of Hair in Garden

Being an organic material, hair decomposes while releasing nutrients and is good for the environment. Apart from composting, it also benefits gardeners in other ways. Here are a few important uses for hair that you should be aware of if you’ve been throwing it away all this time.

  • Use As a Mulch: Hair mats can be used as mulch to inhibit weed growth and retain moisture in the soil. It also helps to regulate plant temperature. 
  • Protect Your Garden: The smell of hair repels most animals like snails, rabbits, rodents, deer, and wild boars. Hang a stocking filled with hair near the border of your garden, or spread them in your garden, and you’re done! But remember to change the hair periodically to keep the smell pungent.
  • Fertilize The Soil: Apart from composting, you can use hair directly as a fertilizer for the soil. It releases nitrogen into the soil and keeps your plants healthy. Hair also contains Hydrogen, Oxygen, Carbon, and Sulphur, and their composition is similar to bone meal.
  • Loosen Up The Soil: When fresh hair is buried in the soil, it provides structural support to the roots and helps to break up thick clay soils.

Frequently Asked Questions

How long does hair take to decompose?

Hair decomposes slowly and takes up to two years to break down completely in the soil. However, if composted using ideal conditions, it takes about 1-2 months for the hair to break down enough to go into the garden soil.

Is human hair good for the soil?

Yes, human hair breaks down in the soil and releases nutrients. It contains 15% Nitrogen and trace amounts of sodium, oxygen, carbon, and hydrogen and keeps your plants healthy. It also helps to retain moisture in the soil and control weeds.

Does putting hair in plants help?

Hair is an excellent fertilizer and enhances the quality of the soil. It’s rich in nitrogen and can become the replacement for chemical fertilizers. So, if you do not have compost set up at your home, you can bury hair in your soil. You can also use hair as an animal repellent and mulching material.

Is fallen hair good for plants?

Fallen hair acts as a soil supplement, provides structural support to roots and helps loosen the clay soil by breaking it. You can add human or pet hair to the soil for best results.

Can you compost pet hair?

Yes. You can compost pet hair. The hair or fur of a dog, cat, and horse is nutritious and supplements your compost with nutrients.

Can you compost dyed hair?

Dyed hair contains synthetic chemicals that might harm your plants. So it is recommended not to use dyed hair for composting. However, these days you are getting natural dyes, and if you are using them on your hair, it is completely safe to compost such hair.

Can you put hair in potted plants?

Yes, you can use hair as a fertilizer in potted plants, but remember, it releases nutrients slowly into the soil. So you need to supplement your plants with other fertilizers like compost or manure.

Is hair considered green or brown material in compost?

As the hair is low in Carbon and has about 16% of Nitrogen, it is considered green composting material.

Can Hair Be Recycled?

Yes, hair is recyclable. It can be used in the art and textile industries. You can find hair being recycled for making jewelry and sculptures. Hair also is used to make wigs and hair extensions popularly.

Hair can be a source of slow-releasing Nitrogen to your compost pile. It takes longer to decompose, up to 2 years but adds ~16% Nitrogen to the compost, so this is a valuable source of green material for the compost. Hair also helps to repel pests and serves as a mulch.

You can compost both human and pet hair. Just layer them evenly on green materials and mix them well with other composting materials. So, next time when you brush your hair, don’t throw the strands sticking to the hairbrush. Collect and compost them.

You can also get hair clippings from a beauty salon or barbershop and use them to compost and nourish your soil.

Dryer lint is another underestimated regular domestic waste. And if you collect dryer lint from your washing machines, you must find out if you can compost dryer lint and its other uses here.