Yes, they can be moved. I moved one in the spring and it is doing much better in its new location. However, we are heading into hotter weather, so now may not be the best time to transplant. You would have to be sure to water diligently. Also, be sure to dig around the plant in a wide circle so you get most of the roots.

Here is a link that might be useful: OC gardening

I think it is best to move them when it cools down in the fall.
Renee