Grandma’s Homemade Banana Peel Water for Plants

Prep Time: 5 minutes
Soaking Time: 24–48 hours
Makes: Approximately 4 cups
Use: Optional homemade plant tonic

Ingredients

• 2 ripe banana peels
• 4 cups clean water
• 1 large glass jar or food-safe container
• Additional water for dilution

Instructions

1. Remove any fruit stickers and rinse the banana peels thoroughly to remove dirt and surface residue.
2. Cut the peels into small pieces so they fit easily inside the container.
3. Place the banana-peel pieces in a clean glass jar.
4. Pour 4 cups of water over the peels, making sure they are mostly submerged.
5. Cover the container loosely. Do not seal it tightly because gases may develop during soaking.
6. Leave the container at room temperature for 24–48 hours. Do not soak the peels for several weeks, as the mixture can ferment, smell unpleasant, and attract pests.
7. Strain the liquid and discard the banana peels in a compost bin or regular trash.
8. Mix one part banana-peel water with one part fresh water.
9. Pour a small amount directly onto the soil around established plants. Avoid pouring it onto leaves, flowers, or edible produce.
10. Use once every 2–4 weeks. Continue following the plant’s normal watering schedule.

Best Plants to Use It On

This diluted liquid may be used occasionally around:

• Established flowering plants
• Roses
• Tomatoes
• Peppers
• Indoor foliage plants
• Outdoor container plants

It should not replace a properly balanced plant fertilizer.

Tips

• Always use clean peels and a clean container.
• Apply the liquid to soil rather than spraying it onto leaves.
• Test it on one plant before treating an entire garden.
• Stop using it if you notice mold, insects, unpleasant odor, or plant stress.
• Avoid overwatering plants just to apply the mixture.
• Composting banana peels is generally a more reliable way to return their nutrients to the soil.
• Do not add sugar or honey because they can encourage mold and pests.

Storage

Fresh banana-peel water should be used immediately after straining. If necessary, refrigerate it in a clearly labeled container for no longer than 2 days.

Do not store it in tightly sealed plastic bottles for extended periods. Fermentation can create pressure inside the bottle. Never drink banana-peel water prepared for plants.

Potential Benefits

Banana peels naturally contain plant nutrients, including potassium. However, soaking them in water does not create a complete fertilizer, and the exact amount of nutrients transferred into the water is uncertain.

This mixture is best treated as an occasional homemade garden tonic rather than a proven replacement for compost or balanced fertilizer.

Frequently Asked Questions

Can banana-peel water replace fertilizer?
No. It does not contain a reliable balance of all the nutrients plants need.

How often can I use it?
Use a small amount once every 2–4 weeks. Applying it too frequently may attract insects or keep the soil excessively wet.

Can I use it on seedlings?
It is better to avoid using homemade mixtures on delicate seedlings. Use clean water and an appropriate seed-starting fertilizer instead.

Why does my mixture smell bad?
It has probably started fermenting or decomposing. Discard it, clean the container, and make a fresh batch with a shorter soaking time.

Can I put banana peels directly into plant pots?
This is not recommended because decomposing peels can smell, grow mold, and attract fruit flies. Add them to a compost pile instead.