Cooking Hacks in spain sell lora modules but they are a bit expensive.
https://www.cooking-hacks.com/lorawan-module-for-arduino-raspberry-pi-868-mhz-xbee-socket
SODAQ is also selling Lora parts.
http://shop.sodaq.com/en/lora/
Ray what would it take to get a lora module & good soil moister in the store?