Are coffee grounds good for houseplants? Yes, as long as you know how to use them. Keep reading to learn all you need to know ...
Even indoor plants will perk up with coffee grounds if you follow a few guidelines ... using them directly as a fertilizer takes time. If the coffee has been brewed, the acidity has been neutralized.
Princess flower (Tibouchina urvilleana) is one of those plants that just ... by using a common fertilizer ingredient you already have in your kitchen: Fresh coffee grounds or ground coffee.