Just mix banana and coffee… and you’ll never have to spend another penny at the supermarket again

What if the key to a lush garden was already hiding in your kitchen? You read that right: a little coffee grounds, a few banana peels, and voila! This 100% natural and ultra-economical homemade trick works wonders on both indoor and outdoor plants. Say goodbye to expensive supermarket fertilizers—your composter has found a powerful ally.

Why this duo works so well

Bananas and coffee aren’t just your breakfast companions, they’re also two ingredients rich in essential plant nutrients.

  • Coffee grounds contain nitrogen, magnesium and potassium: perfect for stimulating leaf growth.
  • Banana peel, rich in phosphorus and calcium, promotes flowering and strengthens roots.

Together, they offer a  complete nutritional cocktail  that restores energy and vitality to your favorite plants.

The preparation

What you need

To prepare your homemade fertilizer, you need:

  • 4 tablespoons of coffee grounds (fresh or dried)
  • 1.5 liters of water
  • 3 banana peels (ripe or slightly blackened)
  • A container with a lid
  • A blender
  • A sieve or fine strainer

Step by step

  1. Prepare the coffee infusion

Pour 1.5 liters of water into your container and add the coffee grounds. Mix well, then cover without closing completely to allow air to circulate.

Place everything in a warm place—on top of the refrigerator, for example—and let it sit for 3 days. This infusion helps extract the minerals present in the coffee.

  1. Add the banana peels

After 3 days, cut off the skins and place them in the blender. Pour the coffee infusion over them and blend for 2 to 3 minutes until smooth and slightly frothy.

  1. Filter carefully

Strain the mixture to remove any skin. This step is essential to avoid residue that could attract insects or cause mold in your jars.

How to use it

Your natural fertilizer is ready! Use it as watering water, about once a week.
It is suitable for all plants: orchids, roses, houseplants, balcony flowers, or vegetable gardens.

Bonus tip:  If your plants are looking dull or their leaves are turning yellow, this elixir will give them a real boost. You’ll quickly see their stems straighten and their leaves regain their shine.

The visible benefits

  • Greener leaves: Coffee grounds provide nitrogen, which stimulates chlorophyll.
  • Stronger roots: The potassium in bananas strengthens the resistance of plants.
  • Richer flowering: phosphorus promotes the production of colorful flowers.
  • An ecological gesture: zero waste, zero chemicals, and maximum effect!

The little eco-friendly extra

Instead of throwing away your kitchen scraps, turn them into a natural resource. This simple recipe not only saves money but also reduces your environmental footprint.
A gentle gesture for the planet and your plants!

To remember

The coffee-banana duo   isn’t just a grandmother’s trick: it’s a real revitalizing treatment for your plants. With a little patience and a few everyday scraps, you can achieve a vibrant garden without spending a cent.

Which just goes to show that sometimes nature has already planned everything… you just have to open your eyes (and your composter)!