(Catalpa speciosa )
The northern catalpa is a medium-sized tree with brown to gray bark. The leaves are large, heart-shaped and pointed at the tip, and the trumpet-shaped flowers are white with yellow stripes and purple spots inside. The leaves generally don’t color in autumn before falling, and instead either fall abruptly after the first hard freeze, or turn a slightly yellow-brown before dropping off. Widely planted as an ornamental tree, catalpas prefers moist, high pH (alkaline) soil and full sun, but will grow almost anywhere in North America.