Lynn & Joel Rapp were an American couple that wrote several gardening books together.

Joel Rapp (born May 22, 1934 – died September 15, 2021) was an American writer and director. Rapp was a passionate gardener, and was nicknamed "Mr. Mother Earth, Plant Man to the Stars". He authored 14 books on gardening, and was the gardener for Live with Regis and Kathie Lee.