What lavishing red blooms!

How long did they last? Cactus flowers seem so fleeting.
Dragon fruit is a kind of cactus like tom's but they need to get pretty big (I think like 4-5 feet?) before they can flower and produce fruit. It's one of edible plants on my wishlist but I don't have the room.
I have a night blooming cereus that has white gorgeous flowers that only opens during the night for a single night. I couldn't get it to bloom this season though. (I did post photos some time ago)