"Rhubarb!" It's one of those foods, like bananas or kumquats, that has an inherently funny name. It sounds like it would be a mild slur in the Land of Oz. And just look at those bright reddish ...

Insects that eat leaves create different kinds of damage. While you will not always see the bug that's doing the eating, you will almost certainly notice the destruction. Here's how to identify ...

This story appears in the October 2012 issue of National Geographic magazine. We have all held leaves, driven miles to see their fall colors, eaten them, raked them, sought their shade. Since they ...

Look for bright, firm leaves with no blemishes, slime or brown patches. A good rule-of-thumb is that fresh cabbage leaves should ‘squeak’ when you rub them together. Buy cabbage with the outer ...