A drip tray needs to fit both the pot and the supporting surface. A plant name alone cannot tell you the size.
1. Measure the base
Measure the widest outside diameter that will sit inside the tray, including feet or a flared lower edge.
2. Add visible rim clearance
Choose a tray wider than the base so a continuous rim remains visible around the pot.
3. Check the drainage path
Confirm whether water exits through a nursery pot, a cachepot, or no opening at all. Do not assume every container drains.
4. Empty standing water
Check after watering, empty water promptly, and inspect the surface beneath the tray.