Joe - Nah. Not an Amelanchier. Foliage is not quite right, and Amelanchier flowers have skinner petals. Carol - that could be it. Definitely something in the Rosaceae family, I think. My only hesitation is that this garden was neglected for quite some time, is overrun with lonicera (both vines and shrubs), berberis, Euonymus alatus, etc. And these shrubs are covering an entire side of the suburban yard. It looks like they've been there for a while, and they're taking over along with the rest. Has P. villosa been around for a while? Does it show invasive tendencies here?

Redbuds cast a great deal of shade and often make it impossible to garden under them for that reason. They don't get too tall, but their branches will eventually strike the house at the distance you are contemplating. Serviceberry has the nice drooping florets and later the delicious berries that many birds love, so you could observe them feasting on them close up if a window looks out on that spot. It does well in partial shade and seems fairly adaptable; I see no reason why you couldn't keep it in shrub form if you are able to find one trained that way. However, I had some revert to small-tree form when I failed to keep them clipped, so you may be able to find a more trouble-free shrub for next to your house, and save your serviceberry planting for along your driveway or other opening from the woodsy areas. Pieris Japonica comes in many forms these days and is an interesting shrub that grows fairly slowly, so requires little attention. Some of the larger Rhododendrons would also do well in that spot, and the color choices and flower forms are wonderful. Of course Forsythia would also grow there, and there are several size choices. Witch Hazel is often difficult to get established, especially if it is a graft. It has a wonderful fragrance when the tiny flowers appear, but it grows very slowly and takes a long time to fill out, in my experience. If you don't mind thorns you could try Bitter Orange, but eventually it will probably crave more sun. The flowers have a nice fragrance and it has beautiful dark shiny leaves...but it also grows quite slowly. The hazelnut tree or shrub is not often thought of but is worth checking into. There is probably not enough sun for a lilac but the hibiscus can tolerate more shade and has flower choices that range from white to a soft pink to a lovely lavender color. All that said, Viburnums are available in many kinds, and the viburnum in any form makes a good wood that stands up to abuse quite well; they are one of the sturdiest shrubs out there, imo, unlike the hydrangeas, which make a very soft stem. However, oak leaf hydrangeas are capable of eventually getting fairly large, and have the interestingly shaped leaves and flower clusters. I believe their color change in fall is also attractive, and they do quite well in partial shade. Here is a link that might be useful: Pieris Japonica references

I'm too far north to imagine what the banana might look like, but I bet it would be nice. And the fan palm would be lovely. Chaste tree, Vitex angus-castus, is a pretty southern substitute for lilac, with grey-green leaves and beautiful blue flowers. Desert willow seems like it would be nice, too -- not sure how tall they get. Fothergilla is beautiful in bloom; you could prune it to a single stem I think. Sterile Rose of Sharon, trimmed to tree-form would be an unusual, tropical looking plant. (I did this with regular ROS and while I loved the look, the seedlings were killer!) Hope you find something that works for you -- looks like a lovely space!

In book "Wild Flowers of Florida", I found an explanation for the difference(s) between my tree and photos /descriptions of B. halimfolia. On individual trees, all flowers are either male or female. Author wrote of male flowers that they are "much less noticeable". Perhaps foliage density tends to follow suit. I am prompted by that reading to correct the above-stated "Deciduous" to evergreen. (Leaves did leave; now I recall that I pruned the branches.)