Watering your plants with Coffee?

1. Liquid Coffee: An immediate boost

The rest of your cup contains dissolved minerals that the plant can absorb immediately.

The Dilution Rule

Never pour pure espresso at the base of a plant! It's too acidic and too concentrated. High doses of caffeine can inhibit growth.

The Right Recipe:Always dilute your coffee. Count on about 1 dose of coffee for 4 doses of water in your watering can.

⚠️ Absolute prohibitions

• Never hot:You would cook the roots. Wait until it's cold.
• Never sweet:Sugar attracts gnats and ferments in the soil (mold).
• Never Flavored: Artificial flavors (vanilla, hazelnut) are chemical and harmful to the soil.

2. Coffee Grounds: The protector

The wet powder remaining in the filter is very different from the liquid. It is organic matter rich in nitrogen.

Its 3 superpowers:

1. Enrichment:Mix it into the surface soil (scratching in). As it decomposes, it slowly releases nitrogen.
2. The Repellent:Sprinkle it around the base of the plant. Its granular texture and smell are disliked by ants, slugs, and snails.
3. The Compost:It's an excellent compost activator. If you have a vermicomposter, worms love it (in moderation).

3. Which plants like coffee?

Coffee is acidic (pH around 5). Not all plants like it!

✅ The "Acid-loving plants" (They love it)

Go straight for:

• Hydrangeas (it enhances their blue color).
• Azaleas and Rhododendrons.
• The Ferns.
• The Rose Bushes.
• Tomatoes (coffee grounds at the base help with growth).

❌ To avoid

Avoid giving it to young shoots (too strong) or to plants that like calcareous soils.

It's your turn!

Zero-Waste gardening is within reach. Once a week, offer your plants a small "long coffee" (very long!), they will thank you for it.