Full guide about coffee grounds in the garden 2020

Full guide about coffee grounds in the garden 2020

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Uses of coffee grounds in the garden and at home

coffee grounds

An odor absorber

  • Fill a jam jar with coffee grounds.
  • Place the jar at the bottom of your fridge: it will have a deodorizing effect.
  • Coffee grounds can also eliminate bad smells on your hands after cutting garlic or onions, for example. Simply rub them with coffee grounds and rinse them off.

A candle to perfume your home

  • Stir some coffee grounds into melted beeswax.
  • Place a wick in a jar.
  • Pour the mixture into the jar. You this obtain a candlewick while burning releases a soft perfume of roasted coffee

A natural wood stain

  • Mix equal proportions of coffee grounds, water, and white vinegar.
  • Leave the mixture to infuse for one hour.

Apply with a cloth the stain obtained on a wooden surface. Allow the wood to soak in the stain for a longer or shorter period, depending on the desired color, before rinsing. It is also a way to blur or remove scratches.

A natural exfoliation

  • Use the coffee grounds for a natural body scrub.
  • To do this, mix the coffee grounds with a little honey and coconut oil.
  • Scrub using a little warm water.
  • For rougher areas such as elbows or feet, combine the coffee with a little salt before applying.

Roasting coffee beans guide

The uses of coffee grounds in the garden

An organic fertilizer

Coffee grounds are an excellent natural fertilizer. Slightly acidic, it is perfectly suited to hydrangeas to help strengthen their blue coloration but also to tomatoes.

Spread coffee grounds at the base of your plants.

Mix the coffee grounds with the garden soil using a light hoeing motion.


A compost activator

If you have a vermicomposter to sort your organic or other waste, consider incorporating coffee grounds into it. Earthworms are particularly fond of it because it helps them digest the organic matter in your compost pile. 

Very sensitive to caffeine, earthworms are also more active in transforming plants into compost.

A sowing soil rich in nitrogen, phosphorus, and potassium

Mix one part of this brown gold with one part of garden soil to obtain an ideal soil to germinate your seeds.

Thanks to a carbon/nitrogen ratio of 20 (one part nitrogen to 20 parts carbon), coffee grounds are ideal, especially as they gradually release nitrogen, phosphorus, and potassium to young plants.

A natural repellent against small pests

Sprinkle coffee grounds around your plants. Although coffee grounds no longer contain enough caffeine to be toxic to slugs or snails, it can still keep them away.


After heavy rains, consider sprinkling more caffeine around your vegetable plants or flower beds.

Preparing a liquid fertilizer: step-by-step:

  1. Remove the filter from your coffee maker and pour the coffee grounds into a container containing 2 l of water.
  2. Stir the mixture and let it rest for 24 to 48 hours in a cool room, such as a garage or cellar.

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