A friend was looking for an app so I explored some FOSS ones. It might be helpful to take it a step further and self host it so that family members can coordinate care.
I saw this which looks interesting
https://github.com/MDeLuise/plant-it/#features-highlight
Open to regular FOSS apps as well!
I use home-assistant and a esphome device as a Bluetooth proxy to track plants with some Bluetooth devices (MiFlora I think)