bloom·er 
/ˈblu:mɚ/ noun
plural bloom·ers /ˈblu:mɚ/ noun [count] 1 : a plant that blooms at a specified time
▪ These plants are spring bloomers. [=they have flowers in the spring] ▪ plants that are early/late bloomers 2 Brit, informal + somewhat old-fashioned : an embarrassing mistake
▪ The politician's bloomer [=(US) blooper] was shown on every TV channel.
▪ These plants are spring bloomers. [=they have flowers in the spring] ▪ plants that are early/late bloomers
▪ The politician's bloomer [=(US) blooper] was shown on every TV channel.
late bloomer
US : someone who becomes successful, attractive, etc., at a later time in life than other people
▪ She was a late bloomer as a writer.
▪ She was a late bloomer as a writer.
