1. Root rot Houseplant root rot is caused by overwatering. Horticulturist Justin Hancock at Costa Farms explains: 'If a snake plant is watered enough that the potting mix stays wet (the spaces ...

Unlike most plants that take a break from photosynthesising at night, the snake plant keeps going ... which can lead to root rot. It’s also one of the few air-purifying plants that NASA has ...