Orchids And Coffee Grounds: Myths That Are Half True - Orchideria
I’m going to analyze what is in coffee beans , how that interacts with your plant, and why it is (or isn’t) beneficial for your orchids. Adding leftover, brewed coffee beans to your orchid pot doesn’t aid your orchid because 1) coffee in its natural form cannot be absorbed by orchid roots without the presence of nitrifying bacteria, and 2) the nitrogen that is released is caused by the presence of bacteria and earthworms and not the coffee grounds.