Just a teaspoon, and suddenly the orchid miraculously blooms many flowers. | March 2, 2025

Orchids are one of the most beautiful and diverse plant families, numbering over 25,000 species and over 100,000 hybrids. Their stunning beauty and exotic appearance make them a favorite among plant lovers. Just like all plants, orchids have specific nutritional needs to thrive. An unconventional remedy that has become popular among gardeners is the use of coffee. Let’s look at the science and method behind this practice.

The Science Behind Coffee for Orchids
Nutritional Content of Coffee

When talking about coffee for plants, we are usually referring to coffee grounds or diluted black coffee. Coffee contains several minerals beneficial for plant growth:
Nitrogen: Found in large quantities in coffee grounds, it promotes robust vegetative growth.

Magnesium & Calcium: Essential for the health of orchids, they help in the formation of roots and cells.
Potassium: Promotes flower and fruit production.
Acid-Loving Plants
Orchids generally prefer slightly acidic to neutral pH levels (6.0 – 7.5). Since coffee is naturally acidic, it is a potential supplement for orchids.