Beginner Gardening: balloon flowers, 5 by HeatherY

HeatherY wrote:
Below are pictures of my balloon flowers. This is their second year and I love them- but they are in the wrong place. Can I transplant them? had I better wait until the blooms quit for the season?

How deep do their roots go, anyhow? This plant grows straight up about four feet, then blooms these five petaled purple blue flowers that swell into a five sided pentagonal shape before they dry up and fall off.

thanks
HeatherY