From what I've heard, the tray method means putting a tray of water underneath a plant and replenishing water through the tray and not by watering the substrate. For a long time, I thought it just meant putting a tray under a pot.
So my question is, are there any benefits to the tray method versus overhead watering (assuming you don't accidentally water the foliage)? It seems to me like just putting water at the bottom would make the plant need to use energy to pull the water through the roots, and wouldn't the top part of the soil dry up eventually? Are there any plants for which the tray method is actually better than overhead watering?
I've never used the tray method before, so I don't know much about it. I do put trays under most of my plants to hold excess water, though.