Plattsburgh, NY, May 28, 2012 — Overcrowding can be a real problem for plants, from the row of young lettuce or carrots, to the patch of well-established perennials. And right now is a good time to take stock and do some strategic thinning-out.

Cornell Cooperative Extension horticulturist Amy Ivy shares tips with Martha Foley, including plants, like day lilies and bearded iris, that are OK to divide and move now.