OK they called it a tomato tower but the minute I saw it I knew it's real name was ROSE tower. Now I'll just have to find the time and skill to make one or two or three.
Two things I've learned so far from a current obelisk with rose:
-pound rebar stakes into the ground to it doesn't fall over due to rose weight or wind or both.
-put pavers under the bottom legs or the pesky termites will chow down.
Here is a link that might be useful: rose tower