 He played an important role in the popularisation and diversification of Miniature roses, introducing over five hundred new miniature rose hybrids, including the award-winning "Ann Moore", after his wife, Ann.Other cultivars introduced by Moore were the single-petalled Miniature 'Simplex' (1961), the first yellow-flowered modern Moss Rose, 'Goldmoss' (1972) or the orange-red Floribunda 'Playtime' (1989).On May 29, 2003, in downtown Visalia, the Ralph Moore Rose Garden was dedicated to Ralph to honor his achievements as a rose breeder.