Hello Jonathan,
I've submitted two concepts for your review. I tried not to go off with an overall childish look, but preserve your seriousness and devotion, by creating an imagery of a farmer caring for his crop (cherry tree #53 or fern #52).
I kept in mind that it's a farm, and made it fit in any sign placeholder and also offering the posibility of ease of printing, carving or any other method of displaying the concept.
Your input is most valuable.
Andrei