How/when can I divide “lamb’s ear”?

Question

The plants have taken over the border along the sidewalk. I don’t want to pull up the plants, just trim them back and tidy up the flowerbed.

Answer 1

Spring is a good time for dividing these plants. Just dig up the clumps you wish to divide, split them into 2-4 sections (depending on its size) and replant elsewhere in a suitable location. Be sure to water good afterward.