Beyond light and water, the environment around your plants — humidity, temperature, and air circulation — plays a crucial role in their health.
A digital hygrometer (available for under $10) is the best way to know your actual humidity levels. Place it near your plants, not across the room. Most homes range from 30–50% humidity, but tropical plants like calatheas, ferns, and orchids prefer 50–70%. Succulents and cacti are happy at lower humidity levels.