One of my favorites, I like the drink but it also makes a good jelly. I've grown Roselle in my zone 7b with very good success. If grown from seed outdoors, they do not sprout until the soil warms, around here that's sometime in May. It's true that they do not fruit until October, but that hasn't been a problem here in northeast, Tx. I grow them as an annual.
Here's a couple of good links:
https://pearlculture.wordpress...
https://hort.purdue.edu/newcro...
