KENNETT SQUARE, Pa. (CBS) -- Longwood Gardens unveiled a $250 million project on Thursday, which was more than a decade in the making. The project will transform one of America's greatest gardens.
Longwood Gardens said it will add new buildings, pools and plantings across 17 acres.
The centerpiece will be a 32,000-square-foot glasshouse.
Longwood expects to break ground on the project this spring.
The main and east conservatories will remain open during the project.
for more features.