Humidity on houseplants
Common causes of humidity and the first things to check, summarized from 21 PlantGrail care records across 16 plants (as of ).
What causes humidity on houseplants?
It depends on the plant and how it is kept, so check the plant pages below. For Boston Fern, the records explain it like this: Boston ferns require 60-80% relative humidity to thrive, far exceeding typical indoor levels of 30-50%. Low humidity causes rapid transpiration, leading to crispy fronds, brown tips, and overall decline. This tropical epiphyte evolved in rainforest understories where humidity remains consistently high.
Common first steps
- Use a humidifier positioned 3-5 feet from the plant to maintain 60-70% ambient humidity
- Place fern in a bathroom with good indirect light to benefit from shower steam
- Create a pebble tray: place pot on gravel-filled saucer with water below pebble level
Plants with records for humidity
Most records first. Open a plant for its own causes and fixes.
- boston fern Nephrolepis exaltataPlant care guide
- anthurium Anthurium spp.Plant care guide
- calathea Goeppertia spp.Plant care guide
- orchid Phalaenopsis spp.Plant care guide
- croton Codiaeum variegatumPlant care guide
- pothos Epipremnum aureumPlant care guide
- calathea orbifolia Goeppertia orbifoliaPlant care guide
- fiddle leaf fig Ficus lyrataPlant care guide
- begonia maculata Begonia maculataRead the guide
- bird's nest fern
- hoya Hoya spp.Plant care guide
- alocasia Alocasia spp.Plant care guide
- ferns Plant care guide
- monstera adansonii Monstera adansoniiPlant care guide
- peperomia Peperomia spp.Plant care guide
- parlor palm Chamaedorea elegansPlant care guide
Questions about humidity
Which plants have the most records for humidity?
boston fern, anthurium, calathea, orchid, croton and 11 others.
Can humidity be prevented?
Monitor humidity with a hygrometer, especially during winter heating season. Use automated humidifiers with built-in humidistats. Avoid placing ferns near heating vents, air conditioners, or drafty windows. Maintain consistent humidity year-round.
What are these records?
This page summarizes 21 PlantGrail care records on humidity. Records describe care topics; they are not counts of observed plants or treatment outcomes.