06.03.2025

How to make a powerful homemade fertilizer with just 2 ingredients you can revive every plant!

By Lesia

While no single homemade fertilizer can “revive every plant” in all conditions, a simple and effective one using just two readily available ingredients is compost tea made with compost and water.  

Here’s why it works and how to make it:

Why Compost Tea Works:

  • Nutrient-Rich: Compost is a treasure trove of essential plant nutrients, including nitrogen, phosphorus, potassium, and micronutrients.  
  • Beneficial Microbes: Compost tea contains a diverse community of beneficial microbes that improve soil health, enhance nutrient availability, and suppress plant diseases.  
  • Gentle and Versatile: It’s a mild fertilizer that can be used on a wide range of plants, including vegetables, flowers, and houseplants.  

How to Make Compost Tea:

  1. Gather Your Ingredients:
    • High-quality compost (avoid compost with meat or dairy waste).  
    • Non-chlorinated water (tap water can be used if left to sit for 24 hours to allow chlorine to dissipate).  
    • A bucket or large container.
    • A porous bag (e.g., cheesecloth, burlap, old pantyhose).  
    • An air stone and aquarium pump (optional, but highly recommended).  
  2. Prepare the Compost Bag:
    • Fill the porous bag with compost. Use a ratio of approximately 1 part compost to 5 parts water.
  3. Steep the Compost:
    • Place the compost bag in the bucket or container.  
    • Fill the container with non-chlorinated water, ensuring the bag is fully submerged.  
  4. Aerate (Optional but Recommended):
    • If using an air stone and aquarium pump, place the air stone in the water and turn on the pump. This aeration helps to promote the growth of beneficial aerobic microbes.
    • If you do not have an air pump, stir the mixture several times a day.
  5. Brew the Tea:
    • Let the compost tea brew for 24-48 hours.  
    • The tea should have a dark, earthy color.
  6. Dilute and Apply:
    • Dilute the compost tea with water to a light tea color. A 1:10 dilution is often recommended.
    • Use the compost tea to water your plants, applying it directly to the soil.
    • You can also use it as a foliar spray.  

Important Considerations:

  • Compost Quality: The quality of your compost will directly impact the quality of your compost tea. Use well-decomposed, mature compost.
  • Aeration: Aeration is crucial for promoting the growth of beneficial aerobic microbes. Without aeration, the tea can become anaerobic and potentially harmful.  
  • Freshness: Use compost tea within a few hours of brewing for optimal results.
  • Plant Needs: While compost tea is gentle, it’s essential to consider the specific needs of your plants. Some plants may require additional nutrients or amendments.
  • Avoid Contamination: Do not use compost tea that has an unpleasant smell, as this indicates anaerobic conditions.

By following these steps, you can create a powerful and natural fertilizer that can significantly benefit your plants.