Most house plants do best at a relative humidity of 70 to 80 percent, while a typical home only has around 20 percent.
I know that the air is dry in my apartment, so I need to find ways to keep the plants healthy and thriving.
If you know the region where the plant is from originally, that’s a good clue about how much humidity it requires. For instance: Is it tropical, sub-tropical, etc.
What you can do to increase humidity to accommodate your house plants:
1. Group your plants together.
Plants release moisture through their leaves in a process called transpiration. Grouping them together creates a humid micro-climate that will benefit all your plants.
2. Put the plants in trays with pebbles.
This is a popular way to raise humidity immediately around your plants. Use clean trays and put at least an inch of pebbles in each tray, then set the pots on the pebbles.
Fill the tray with water halfway up the pebbles, but don’t let the pots sit directly in water.
Every time you water your plants, make sure to empty and rinse the tray. This will ensure that the tray doesn’t become a breeding ground for insects, and it will reduce the concentration of fertilizer salts that have accumulated in the tray.
3. Mist your plants.
The first step for me was grouping my house plants together. I plan to occasionally mist them.
Time will tell if I need to do more.