Ask the nurseryman how the plants are propagated. Wax myrtles, red cedars, and fringe trees are all dioecious. If the plant was propagated from a cutting then all of the offspring will be the same sex. Pollinators and Insects Not all flowers are designed to be pollinated by the same thing. Consider the shape, size and color of the flower when you make your selections.
Laurel oak is superb insect habitat and therefore as exceptional food tree for songbirds.
Likewise the rough bark on pine trees harbors tons of insects and thus feeds the birds too. Mulch will produce a large number of insects for the birds. Cypress mulch does not break down or decompose very quickly and doesn't provide a suitable habitat for insects. If possible use mulches from exotic pest plants like Melaleuca . Cover and Shelter Plant both evergreen and deciduous trees for cover year round.