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How to Make Compost Tea: The Tea Elixir for Plants

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Kyle Davis
Kyle Davis
Be exclusive, Be Devine, Be yourself.

When you think of tea, your mind probably goes to a variety of types from peppermint and chamomile to green tea and black tea. But have you ever heard of compost tea? Unlike its consumable counterparts, compost tea is a healthy elixir that protects and promotes the growth of plants. Its dark amber color and brewing process give it the name, but it’s not for human consumption. Let’s dive into this fascinating world of compost tea, exploring its benefits, brewing methods, and applications in the garden.

What is Compost Tea?

Compost tea is a liquid organic fertilizer for plants, usually applied as a foliar spray during times of stress, such as temperature fluctuations and root damage. Like true teas and herbal teas, compost tea is nutritionally rich and packed with vitamins and antioxidants. It’s also full of beneficial microorganisms and other organic materials that promote growth.

The beauty of compost tea lies in its complexity. Geographical location and compost composition play a vital role in determining the quality of compost tea. Different organic matters break down into various nutrients, making each batch of compost tea unique. Whether brewed at home or purchased at garden centers, compost tea offers a versatile and natural approach to plant care.

How to Make Compost Tea: The Tea Elixir for Plants

Benefits of Compost Tea

Adds Nutrients

Compost tea is full of nutrients that help your plants grow healthy and quickly. It’s like a vitamin boost for your garden, nourishing the plants and making them more resilient. The rich content of minerals and organic matter in compost tea provides a balanced diet for plants, enhancing their overall vitality.

Encourages Plant Growth

This liquid fertilizer encourages plants to grow bigger leaves, resulting in healthier harvests and brighter flowers. It’s like giving your garden a growth spurt! The nutrients in compost tea support higher yields of fruits and vegetables, making it a favorite among organic farmers and home gardeners alike.

Prevents Disease

Compost tea contains beneficial bacteria that help protect plants from disease. These microbes act as a shield against harmful pathogens, effectively preventing damage caused by blight, fungi, and mold. By creating a protective barrier on the plant’s surface, compost tea reduces the need for chemical fungicides, promoting a healthier garden ecosystem.

Alternative to Toxic Chemicals

One of the best reasons for using compost tea is that you can forgo toxic and chemical-laden fertilizers. It’s an eco-friendly option that doesn’t harm beneficial garden creatures like ladybugs and worms. By embracing compost tea, you contribute to a more sustainable and responsible approach to gardening, protecting both the environment and the health of those who enjoy your harvest.

How to Make Compost Tea: The Tea Elixir for Plants

Tips For Brewing Good Compost Tea

Focus on Quality

Quality matters in compost tea just like in real teas. Always use well-aged compost to ensure effectiveness, avoiding materials that are too old or not broken down properly. The compost should consist of fine materials and be rich black or dark brown in color. Quality compost ensures that your tea is free from damaging pathogens that can harm plants.


Aerating the compost tea ensures the mixture will have as many beneficial microbes as possible. Stir it occasionally while steeping or use an aquarium pump for better results. Aerated compost tea can also be created using air stones or an air pump. Proper aeration encourages the growth of aerobic bacteria, enhancing the tea’s effectiveness.

Add Powerful Ingredients

Enhance your compost tea by adding ingredients like fish emulsion, powdered seaweed, coffee grounds, and worm castings. These additions boost the nutrient factor and promote plant growth. Experimenting with different ingredients allows you to tailor your compost tea to the specific needs of your garden, providing targeted nourishment.

Take Your Time

Brewing compost tea is straightforward but requires patience. The process can take anywhere from 24 hours to one week, depending on how strong you want your fertilizer to be. Many compost tea brewers aim for at least 48 hours. The longer the tea brews, the stronger it will be, allowing you to adjust the potency to suit your garden’s needs.

How to Make Compost Tea: The Tea Elixir for Plants

Compost Tea Recipe

Here’s a simple recipe to brew compost tea at home:

  1. Prepare the Compost: Fill a 5-gallon bucket about 1/3 full with finished compost material.
  2. Add Water: Use non-chlorinated water, such as rainwater or well water, to fill the rest of the bucket.
  3. Steep the Concentrate: Allow the mixture to steep for 3 to 4 days, stirring in the morning and evening.
  4. Strain the Mixture: Use a large fine mesh strainer or cheesecloth to separate the liquid from the solid materials.
  5. Dilute the Tea: Before applying, dilute the tea concentrate using a 10:1 ratio of water to tea.
  6. Apply to Plants: Use as a soil drench or spray directly to plant leaves, adding a plant-based oil for better adherence.

Using Compost Tea

Brewing compost tea at home is a fun and rewarding experience. Apply it to sandy soils, clay soils, or rocky soils to increase nutrient density. You can also spray it directly to plant leaves to fend off harmful pathogens. However you decide to use your compost tea, you’re sure to have great results.

Compost tea is more than just a fertilizer; it’s a holistic approach to gardening. By understanding the soil’s needs and the plants’ requirements, you can create customized brews that enhance growth, prevent diseases, and enrich the soil. It’s a practice that connects you with nature, allowing you to nurture your garden in a mindful and sustainable way.


Compost tea is more than just a garden trend; it’s a sustainable practice that benefits both plants and the environment. Whether you’re a seasoned gardener or just starting, brewing compost tea offers a natural way to nourish and protect your plants. So why not give it a try? After all, tea making is fun, whether you’re brewing a hot cuppa for yourself or creating a tea concentrate for your garden. Happy brewing!

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