Bleeding hearts should be moved in the fall after the plants go dormant. Even if the plants lost their leaves in the summer due to lack of water, wait until the fall before moving them. You can also move bleeding hearts in early spring before they start to send up new shoots.
Can you move Dicentra?
Technically, you can move bleeding heart anytime, but it is less stressful for the plant if you do it in early spring or fall. If the plant is suffering in its current location, cut back any stems and foliage and transplant it to a new location. Bleeding heart plants are typically divided every three to five years.
When should you transplant bleeding hearts?
Bleeding hearts are best transplanted in the very early spring, before they begin to sprout. I've also had luck moving them in the late summer, after their foliage has pretty much died back.