Ask-a-Dave's-Gardener: Butterfly Weed?, 1 by JerryFriedman

JerryFriedman wrote:
Hi, all. Last fall I planted a Butterfly Weed (Asclepias tuberosa)--a plant, not bare-root--in a thoroughly watered flowerbed. It didn\'t come back up in spring when everything else did (including False Plumbago, a late-starting plant), so I gave up on it. Sometime maybe in May or June, I was digging there and found a tuber with roots that seemed alive, so I reburied it a few inches away. Now I see sprouts, from that same spot, I think. Can you confirm that this is Butterfly Weed or at least that it\'s a possibility? And what caused it to wait till July? Maybe I set it back by digging it up?

Thanks in advance.