What does spirea mean?
• SPIREA (noun) The noun SPIREA has 2 senses: 1. a Japanese shrub that resembles members of the genus Spiraea; widely cultivated in many varieties for its dense panicles of flowers in many colors; often forced by florists for Easter blooming 2. any rosaceous plant of the genus Spiraea; has sprays of small white or pink flowers Familiarity information: SPIREA used as a noun is rare.