What is the ideal amount of humidity for potted plants?

The ideal amount of humidity for potted plants typically falls within the range of 40% to 60%. This range provides a conducive environment for most houseplants, as it helps maintain moisture in the soil and reduces water loss through transpiration. Adequate humidity levels within this range support healthy leaf growth, encourage flowering, and prevent issues such as wilting or leaf drop.

While some plants may thrive in higher humidity levels, such as tropical species that may prefer the upper end of humidity, a balance of 40% to 60% serves as a good standard for a variety of common houseplants. Maintaining humidity levels in this range can help promote overall plant health while also minimizing the risk of diseases associated with overly damp conditions.