@RuralEnt81 It exists, although I don't know how widespread it is. Example of a commercial solution, that I assume uses LoRa radio:
https://t.co/gnf2fUZUHB
This DIY set up is super affordable. The only challenges will be whether the AliExpress sensors work and my terrible soldering work.
Winter project: I'm hoping to set up a DIY ESP32 soil moisture sensor with LoRa via Meshtastic or home assistant. I want my carrots to text me when they are thirsty!
... just waiting for Canada Post to start delivering again.