I use large tomato cages. I push the wires on the small end into the ground around the clump before it gets too big. As the bloom stalks begin I make sure they go up the inside of the flaring cage. I do this for gladiolas and tall lilies too. Sometimes the cages do not capture all of the stalks but it is easy to loop a wire or string from the cage around the stalk and back to the cage.
