Gosh I would not plant Wisteria unless I could mow around the whole planting. Down South it must be a nightmare! I can see wanting some visibility screen, but Wisteria is a monster even up here in the North!! I had one plant, which as TINY when planted. It grew incredibly fast, turned into a heavy, thick root within a year. I trimmed it heavily, almost monthly, because it grew so quickly. By year four, the stem was two inches thick, and though short, the stem branching was bending the trellis over. I probably cut 4-5ft a summer off it, to keep it contained. Year 5, obviously outgrowing the space allotted, I moved it. Lucky for me it died after. Stem was over 3 inches by then, height was short, but only because I was so harsh in pruning. Still had a 6-8ft spread sideways with over inch thick branches. I have never been tempted to purchase another one! This was with severely cold winters, heavy snow and frozen ground. The thought of how big it would get with mild weather, untrimmed is scary! You might REALLY enjoy Clematis as vine cover much more! Some varieties get quite tall, but you can shear them off. Many kinds have random flowering over the whole mild season after the early big bloom. Tremendous variation in flower shapes and colors available if you hunt for them. A line of taller trellis' or fake old split rail fence, in front of the cow fence, could easily be covered with Clematis. Would make a good visual break, at the edge of the yard. Being able to mow up to the cow fence will be to your advantage in keeping yard chores minimized. There are other vines available too, but so many turn into menaces once they settle in. Silver lace Vine is another thug, grows over 20ft a year, will eat the whole fence! Some of the Hydrangea vines are equally bad. Maybe seasonal vines, Morning Glory, Cypress and Cardinal Vines, Moonflower vines, Purple Hyacinth Vine, could be equally attractive. They give lots of vine coverage, pretty flowers, yet do not go crazy with time like the perennials. Die back in "winter" seasons, though they may reseed easily in a warmer climate. I like their bird attraction qualities too. Just be really careful with those hardy vines. You do not want to be sorry later.

Far as the berries it is easy to cover them when they are fruiting and unless you have a tree over your poll I doubt the droppings will be a problem. I would not put the blueberries anywhere they will get splashed with pool water.

The site has a couple of tall pine and ceder trees behind it so it gets filtered sun to full sun depending on where. My tomatoes are doing great and Ice Bergs look good so far. Yes concrete walls and patio, but I think with the trees it should not get too too hot. This will be my first summer so we will see. The area is on the north side but the beds face south and east. THe previous owners installed eye hooks all around the wall. I have put up garden string for the vines to climb on. I hope it is strong enough. I love the ideas of the geraniums, will have to look for them. Will they be messy?

Sarah, Forget the Mexican palms altogether- they are a maintenance nightmare, and more so for a pool - they will drop seeds, seed pods, frond pieces, the cut husks, etc. You will regret it 10000%. No matter what palm you plant, I would only plant it downwind of the winds you get 90% of the year...also, don't plant anything w in 10 ft of your pool regardless. if you already planted them, there's still plenty of time to relocate...good luck