Dave Leonard showed students tree rings from a branch taken off a large catalpa tree at SCAPA in Lexington, Ky., on March 27, 2015.  The school hired Dave Leonard Tree Service to maintain their city champion catalpa tree.  Photo by Pablo Alcala | Staff
Dave Leonard showed students tree rings from a branch taken off a large catalpa tree at SCAPA in Lexington, Ky., on March 27, 2015. The school hired Dave Leonard Tree Service to maintain their city champion catalpa tree. Photo by Pablo Alcala | Staff Lexington Herald-Leader
Dave Leonard showed students tree rings from a branch taken off a large catalpa tree at SCAPA in Lexington, Ky., on March 27, 2015. The school hired Dave Leonard Tree Service to maintain their city champion catalpa tree. Photo by Pablo Alcala | Staff Lexington Herald-Leader

SCAPA students learn from effort to rejuvenate catalpa tree born more than a century ago

March 27, 2015 04:20 PM