I have few design concepts for you, with different aesthetic approaches,...from obvious, but memorable design with tree/sun symbols on #38/#39, over more abstract designs, involving land/plant/sun symbols on #40 and #41, to interesting concepts on #42, #43, and emblem shaped design on #44. On all my designs I've tried to avoid anything that might be associated with pharmacy, because when spoken "FARMesilla" it sounds like somthing pharmaceutical, and if we support this association with graphic element (like mortar and pestle,...I realize it is also related to kitchen, but having in mind text pronounciation, it might be "slipery terain" from branding point of view). This might just confuse your customers.
Anyway, hope you'll like some of these designs, and if you have suggestions for improvement on any of them, feel free to let me know! Thank you!