This is a paean to all types of allium. Those illustrated (A. 'Purple Sensation' and a white A. 'Cowanii') show how well they fit into any border with any plants. They refresh any tired edge, look ...

You’re not the first to get them mixed up. Cavan Images/Getty Images The little green garnish you see on baked potatoes and in savory biscuits may look like green onions, but they’re actually chives.