Both the calendar and the forecast signal a key stage in the flower garden: dividing perennials. It can feel wrong to drive the point of a shovel into the heart of your lovely favorite, but the proof is in the pudding. Cooperative Extension's Amy Ivy says she's her sedum Autumn Joy has hundreds, maybe thousands, of descendants around the region, given away after being divided from the flourishing mother plant. Why do this, and how, in this week's gardening conversation. [full story]