Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow. Since summer seems interminable this year, I’m desperate for signs of fall. Several catalpa trees on my daily drive have caught my eye recently with their large leaves sporting a yellow autumnal color. Catalpa is known as a fisherman’s tree since it the larval food source for the catalpa sphinx moth. It has large, ten inches or so across, heart-shaped leaves that are yellow-green. Their fall color is described as dull