That bush is vaccinium arboreum, or sparkleberry. I grew up near Titusville, and I have used this shrub/small tree for many different things over the last three or so decades. It is prolific in that area. The fruit is delicious in flavor, but dry and grainy in texture. It makes a decent jelly, but as a jam, you must have a genuine taste for the wild foods, as the result will be swampy textured, but good flavored. In central Florida, it flowers white in April, with the fruit coming into maturity in June. Because of the birds, you will be very hard pressed ever to gather them in quantity. Besides, there are many other blueberry species that are generally superior to sparkleberry where the fruit is concerned. The spring leaves make a nice springtime tea, but again, domestic blueberry is far superior for this purpose. Hope this helped!