What's a Pebble Tray?

A pebble tray or pebble saucer is a simple, easy-to-make gardening tool used mostly for indoor plants. Any low dish or tray can be used along with water and pebbles or gravel to create a humid local area for plants that need a little moisture.

Do pebble trays actually work?

The amount of water added to a room from a pebble tray is so small it does not change the humidity of the room. ... Increasing humidity by 1% or 2% has no significant effect on plants. Pebble trays don't work.

What are pebble trays for plants?

A pebble tray is simply a tray or shallow dish filled with pebbles or small rocks and water. The idea is to place your potted plant on top of the pebble tray filled with water. The pebbles prevent the plant from getting its feet too wet.