I received a beautiful myer lemon tree for a Christmas present - we kept "Fred" inside with a southern exposure until summer arrived (and then placed him outside where he gets a southeastern exposure). He had beautiful white fragrant blossoms (while inside this past spring) ..and at one point had about 35 small tiny green preemie fruit. Most fell off, but 5 remained on the tree and have lived happily there for about 6 months...they are the size of most store limes...and the color of them as well!!! When should they turn yellow...should I pick one and cut it open? From what I have read, it should take 6 months...it has been that! The lime-ons are firm (but not hard) to touch...with the firmness you would find on a lime in the grocery store. I have a funny feeling "Fred" may be a "fraud"....what do you think???