I think they try to limit random visiting of the farm. They do have a B&B and some special events (farm school etc.) when it is open for people. THey also have a pick your own veggies thing (I think). All on the property but I don't think you can just go up to MJ's house. There is some info about the farm school and stuff on the main page www.maryjanesfarm.org.
Patricia...be sure to see the MJfarm videos that are on the main page...you can get there from here...or follow the link Julie posted above and check them out...just beautiful. I have watched them all over and over!! I agree..I think it is limited how much you can just show up...but there are times you can visit the farm. I bet Alee knows more about that...It is sure understandable...how else can they get so many wonderful things done!!??!