Sanchez questions whether iron oxide from a rusty pot is even in a form the plant can absorb effectively and how likely it is that the plant's roots will come into contact with the rust.

If grown in a large enough pot, it can reach a height and width of around 3 feet. If you're looking for a houseplant that you can't kill, you should definitely grow a cast iron plant in your bathroom.

Iron is crucial for plant health, supporting photosynthesis, respiration, and enzyme function. It primarily exists in two forms: Fe(II), which is readily available for plants to absorb and use, and Fe ...