Here’s an article that lists some veggies for the shade:
http://www.gardeningknowhow.com/edible/vegetables/vgen/shade-vegetables.htm
I’ll read the link you provided.
I’ve decided on two lettuce types from Baker Creek and I’ll order them as soon as I’ve posted this. This first one looks like it might work in that planter in hot Texas. I’ll plant it in the first half of the planter and the next one in the last half of planter and see what happens to each:
“Mignonette Bronze #LT111
60 days. Excellent for hot and tropical weather, slow to bolt; frilled leaves, bronze-green heads. A superb type for the hot parts of the country. This heirloom was introduced in 1898. Pkt. $2.00”
Little Gem #LT116
“50 days. Very small, green, romaine-type. One of the very best tasting lettuces. A superb heat tolerant variety that is sure to please. Pkt. $2.25”
It will be bright where the planter is in the morning and shade from the brick wall starts after about noon, just no direct sun there after a bit in the morning and none in the last half of the planter.
I’ll also plant each in the wood planter on the ground and see what happens. That is shaded in the afternoon due to the roses being behind that planter and causing shade.