Wireless ground moisture sensor

I think I saw where you are working on this. I have lost plants when a bush grows and blocks the water. I need someting that would tell me if areas are not getting enough water. I would like to have one sensor for each station and that would alert me to the problem,
Thank you Robert Singleton box [redacted] [redacted] (please use private messages to,exchange this type of info

Drip tube is a good alternative for this as well.