Lichee and mulberry trees
I have a lichee tree that is healthy and has been in the ground about 6 years. It will not fruit or flower.
I have a dwarf mulberry which is also very healthy, about the same age and gets lovely lush growth in the spring/summer. It also will not fruit. Someone at the nursery told me some trees are just spiteful.
I live about 3 miles from the beach in Los Angeles. Both trees get plenty of sun. Does anyone know what ails them?