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 Rule of Dilution

Never pour straight 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. Use approximately 1 part coffee to 4 parts water in your watering can.

⚠️ Absolute prohibitions

• Never hot: You'll cook the roots. Wait until it's cold.
• Never sweetened: Sugar attracts midges 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 that remains in the filter is very different from the liquid. It is nitrogen-rich organic matter.

His 3 superpowers:

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

3. Which plants like coffee?

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

✅ The "Acidophiles" (They love it)

Go ahead and do it properly:

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

❌ To be avoided

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

Up to you !

Zero-waste gardening is just a cup away. Once a week, give your plants a little "long coffee" (very long!), and they'll thank you for it.