I've moved a few and they did fairly good. Ironweeds like sun. They can get invasive, so best not to spoil them with good soil and watering! I had Western Ironweed in the yard and it was taking over, so now most of it is out on the property. I'm trying to pull out all the pieces of root that are still left in the yard. My Woolly Ironweed is better behaved, so it can stay.
Woolly Ironweed