Longwood Gardens' jewel of nature

After industrialist Pierre S. du Pont bought a small farm outside Philadelphia to save its trees from being sold for lumber, he spent the rest of his life creating his dream oasis. Today, the 1,700-acre Longwood Gardens, recently expanded, continues its mission of providing "joy and inspiration to everyone through the beauty of nature, conservation, and learning." Jim Axelrod reports. [Original air date: May 17, 2026.]