If she figures out I am growing herb she might be tempted to just ask me to leave (and I would have no problem with that) and take the deposit given that I breached the contract and might have a decent case in court against me. I think ultimately a court would rule that the money should be given back minus damage to the house.

Just not 100% if for me to be protected fully by the state I need to tell someone I am a grower before living in their house.