Arbor Day has its roots in the 1870s, when the horticulturist J. Sterling Morton spearheaded a movement to green Nebraska’s largely treeless plains. Since then, citizens, businesses and governments ...

The California sycamore (Platanus racemosa) is big, bold, and full of surprises. Found beside rivers, at the bottoms of canyons, and in the foothills of mountains in the western United States, this ...