We bought a house 2 years ago in NE Florida that has a dwarf orange tree in the yard. It produces small, not very sweet oranges (with some pits). Both summers it has produced very few blossoms and only 8 oranges overall. This year it is loaded with blossoms which is encouraging but what can I do to improve the quality of the fruit? It gets sun most of the day.. I have no idea how old the tree is - must be at least 4 years and not more than 11 years old.