The Cape Cod property formerly belonging to Rachel “Bunny” Mellon—the legendary horticulturalist, philanthropist, and style icon—has been listed by billionaire collector and businessman ...

Among Koch’s rarified acquaintances were banking heir Paul Mellon and his wife, Rachel “Bunny” Mellon, the renowned gardener whom Koch met when he first visited Cape Cod in the 1970s.

On Cape Cod, Billionaire Bill Koch Lists Bunny Mellon’s Former Home for $23.85 Million The famed horticulturalist planted flower and vegetable gardens on the waterfront property in Osterville ...