Does Our Citrus Tree Need Pruning?

We purchased this Meyer lemon tree and finally found a home for it street side of the house and furtherest away from the salt spray.  Once planted two large spikes took off.  So do I need to prune?

One pruning site states:  Prune lemons every year or two, cutting back new growth by about one-quarter to one-third. Otherwise, trees will get too large, and fruit will be hard to pick.


I found this site on the internet and will probably take advice from it.

 http://meyerlemontree.com/pruninglemontree.html