Okay, my dimensions are 9' x 25' (rounding).
As the sun seems to be avoiding me and isn't as high as it'll be when producing, I'll do my best to paint a picture with my words.
If you folded the deck lengthwise, the half nearest the banister would be the portion that receives the most summer sunlight. Roughly 6-8 hours. There is a pine bough roughly 35-45' above the 1/4 end nearest the camera that provides shade for a short period of time in the afternoon, but it's still able to get lots of sun.
The far end nearest the slanted wall doesn't get much morning or later afternoon sun but does get evening sun.
The best and most sunlight hits roughly the middle third of the deck lengthwise. I have a 5'x9" or so wood grow box that I will be using for herbs. I am going to try just hanging my baskets for any traditional hanging baskets I may end up having on a rope loop. Basically, I loop a loop of rope around the rail, between the posts and hang the hook on the loop. (I have one done this way sort of visible in left corner nearest the camera)
This is an areal shot from Google Maps. The top is North.
