I’ve never had much luck with plants in the cabbage family other than sprouts and kale. The biggest cauliflower I have managed to grow was smaller than a tangerine. I always live in hope however and I planted a few unsuccessful (again) cauliflowers this year but the one success was my green spouting broccoli.
Poblano Ancho are a mild Mexican Chilli which is often smoked and dried. Because of its large size and mildness I grow it to use as you would a bell pepper. They are easy to grow and have a beautiful taste, much more interesting than supermarket pepper with a slight hint of bitter.
The Student is a heritage parsnip developed around 1850 by James Buckman originally as an experiment to prove that existing strains could be improved by crossing with a wild parsnip. The results were so good that you can still buy the seed today.