Q&A: Transplanting Perennials

Q: I started my perennial garden last year, and it has outgrown my wildest imagination. Now I must move the plants to accommodate their size. When is the best time for me to do this — now in the fall or next spring?

A: It depends in part on what you're transplanting. Wait until early spring to transplant fall bloomers like asters and sedum. Plants that have begun to show signs of entering dormancy — browning foliage — can be moved in late summer or early fall. In very cold regions, it's best to divide and transplant no later than early fall so the plants have time to get established before the cold weather and snow hits. Don't worry, though. Anything you don't get to this fall can always be transplanted in early spring. Be sure to water new transplants frequently during dry spells, since you'll invariably damage some of the roots during the transplanting process.

Congratulations on your success with your first perennial garden!