Is it ok to put coffee grounds in my hanging pitcher plant?
Certified GKH Gardening Expert
No! Do not feed anything to the roots. They cannot take up nutrients this way. In fact, they are very picky about their planting mix. This should be Sphagnum moss and perlite. Nothing else. They can only take nutrients through their leaves and pitchers. You can spray them with a 1/4 strength orchid fertilizer, but it is best to let them get insects naturally. Most pitcher plants are very picky about their environment, and are a little more on the difficult side to grow.
This article will help you out a little more: https://www.gardeningknowhow.com/houseplants/pitcher-plants/growing-pitcher-plants.htm