Beginner Gardening: Rootstock Problem on Meyer Lemon - NOT SURE - NEED HELP, 1 by reisman

reisman wrote:
I have a Meyer Lemon tree from a few years ago. I suspect this has returned to root stock. Not sure what I should see or not in the leaves, but they do appear to be in three's, lots of nasty thorns are all over the branches and stems - not any blossoms or fruit - NONE This was a very small tree when I bought it - like 2-3 feet tall - got 1-2 lemons first year or so, but never again, and we had a bad freeze last winter, and that may have hurt it too. It is growing rapidly, now over 12 feet high, but no fruit. We had painted the lower part of it when we first bought it to protect it from the sun here in Arizona (Scottsdale), so I can't appreciate the graft line, but maybe you can tell me what is wrong and what I should do. Thanks for the help. My email address is reism@cox.net. Thanks, Mike Reisman Cell phone is 480-694-4808