Published On Dec 17, 2013
Trees are the oldest, tallest and heaviest things on Earth. How do they grow and survive? Why are they essential to life on our planet? Brian Jorgenson, Boise City Forester and Michelle Youngquist, Educational Coordinator for Project Learning Tree answer students' questions. Host Joan Cartan-Hansen also tours the University of Idaho Parma Research station to learn more about growing stone fruit
show more