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Humidity requirements for houseplants

University of Wisconsin

Humidity is one of the environmental factors you should consider in the care of indoor plants. If humidity is too high, plants become susceptible to rot, mold and mildew. This is rarely a problem in homes, but if it is, you can control it with increased ventilation. If the relative humidity is too low, plants may lose water faster through the tiny openings in their leaves than they can replace it through their roots. Characteristic symptoms of this are browning leaf tips, yellow leaf margins, bud drop, shriveling and wilting. This is often a problem for indoor plants, especially during winter, when indoor temperatures are raised, and the air is dry. There are several ways to minimize the problem of low humidity in homes:

Reviewed 2009

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