Star Roses and Plants/Conard-Pyle, is a horticultural products company, based in West Grove, Pennsylvania since 1855. The company introduced the Peace rose to America from Europe, and always specialized in rose production, but at one time, they were the leading Canna grower and hybridizer in the United States. Star Roses and Plants/Conard-Pyle is best known for introducing the Knock Out Family of Roses and Drift Roses.

West Grove is a borough in Chester County, Pennsylvania, United States. The population was 2,775 at the 2020 census.