In 2016 we were bequeathed a collection comprising some of the rarest desert plants on Earth. It belonged to a man who spent his life as a plumber but lived a double life as a rare plant collector. Instead of selling off his collection, we decided to raise funds to build a greenhouse, designed with architect Jeff Kaplon of Part Office, where these plants could live out the remainder of their lives with dignity. The C.S. Plumber collection in Altadena, CA.