I am very fond of the Mexican Fencepost Cactus. There are other of these cactus in the garden too. These seem a bit out of place with the smaller cactus below but when it fills in, it might look pretty cool. I seem to recall that this bed was full of cactus so I'm not sure if they cleaned it to change it or if something else happened. Anyway, I like these raised beds with the walkway between them.