There's a patch of okra growing just above the beach west of Polis. I'm not sure if it is irrigated, but the roots are probably close to the water table (which could be salty, depending on the depth). But the fruits are huge, and held upright, like small rockets, perhaps up to nine inches long. They are quite hard; I have no idea how edible they might be. But set fruit they certainly did.
Runner beans also grow and flower but do not set fruit here, so a few people have commented to me, without explanation. (Wrong bees?, I wonder.)