 Corn scadius air is everywhere. Don't bother looking it up in the dictionary. It's not there. But most of us know it by intuition. The hot and damp conditions that are ideal for growing corn. And if you're growing your own sweet corn, here's a few signs it's ready for picking. The silk will have turned brown. The ears will be plump and full. And the top of the ear should feel rounded, not pointy. Piercing a kernel should produce a milky liquid, not clear. That is the Old Farmers' Almanac Radio Report.