Question
QUESTION: Hello Mr. Alonzo:
Six years ago I was eating a seedless Clementine tangerine and found one seed in it.  I planted the seed and it has done well. I planted it in my back yard and now it is now almost 7 feet tall. I live in Arizona and there are many citrus trees in my neighborhood. However, my tree has never produced a single blossom or fruit. What can I do to get it to produce? Is it possible that I have a barren tree that may never produce?

ANSWER: Hi Andy,
Thanx for your question.  The Clementine requires another Clementine for pollination.  You can also use a Navel orange tree or a Satsuma tree for pollination.  Don't use other citrus or your fruit will be way too seedy.  I hope this helps.
Tom

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QUESTION: Hi Tom:

Thank you for the info, and I will be happy to give my tree a buddy. However this inspires two more questions: My tree has never produced any blossoms to be pollinated by another tree - will the presence of another tree affect this?  If so what is the approximate maximum distance that the other tree should be placed?

Answer
Hi Andy,
I completely forgot about the blooming.  It takes anywhere from 5-7 years to get fruit from a seed grown tree (although there are cases of only 2-4 years).  So, your tree is not yet completely mature or it would have bloomed.  It will bloom when it reaches the appropriate maturity.  Plant trees 12-20 feet apart.  You indicated that there is a lot of citrus in your neighborhood.  I used to live in Phoenix many years ago and I remember the heady scent of the orange trees when they blossomed.  If you have a lot of other citrus in your neighborhood when your tree does start blooming the Clementine could be very seedy so it will help to have another Clementine close by.  I hope this helps.
Tom