The release of the album was named "the return of Rosario," since critics and public rejected her previous album, Jugar a la Locura (1999), a Rock-infused album.[1]Muchas Flores proved to be a success, selling 250,000 units in Spain, aided by the singer exposure on Talk to Her, a 2002 film by Pedro Almodóvar.[1] Flores also did a small promotional tour in the United States to benefit the album,[5] and a full length worldwide tour, which lasted two years and concluded with the recording of her following album De Mil Colores.[6]
Muchas Flores received mixed critical reviews. Chris Nickson of AllMusic gave the album 2 stars out of 5. Nickson named Flores an "excellent singer", with the album starting with a raw flamenco yell and flourish, but quickly becomes straight forward Latin pop without "too many sparks flying."[7]