If there’s one rule that separates a thriving carnivorous plant collection from a graveyard of sad, brown pitchers and flytraps, it’s this: never use tap water. Not “try to avoid it when you can” — never. Here’s why that rule exists, and what your actual options are. Why carnivorous plants are so sensitive to minerals Most houseplants come from soil that’s reasonably rich in nutrients, so they evolved root systems built to seek out and tolerate a normal range of minerals and
