Juglans nigra: now with leaves!

The black walnuts in the back yard are looking much prettier now that they are in leaf. (Here's what it looked like without foliage.) These native trees will be a source of nuts for the local squirrels when they're older. Black walnut produces "juglone" which makes the nearby soil unsuitable for some plants, such as tomatoes. There are a number of juglone-tolerant plants to choose from to grow under your black walnut. The large compound leaves have a tropical feel. They look similar to those of the invasive Ailanthus altissima (tree of heaven), but A. altissima's leaflets have a pair of teeth at the base. Black walnut also has pleasantly fragrant leaves, smelling like incense, whereas Ailanthus has a foul smell like burnt peanut butter.