Board Thread:FarmVille (game discussion)/@comment-10329077-20130602052902/@comment-409884-20140301174958

I am sorry to hear that you have stopped playing FarmVille -- but at the time you had originally posted this thread -- Zynga/FarmVille had it set up so that if you did not access a farm within a specific time after the farm was released ( I think it was 3 months or so - but do not quote me on that ) then you could not access that farm until they added new quests such as "Return to Enchanted Glen" in this case.

In October of 2013, Zynga changed something on their servers and you should now be able to access all farms, even the ones you do not care about and if I am correct then no farm access will "expire" after any amount of time.