Nouns

(n)flower, prime, peak, heyday, bloom, blossom, efflorescence, flushthe period of greatest prosperity or productivity
(n)rash, roseola, efflorescence, skin rashany red eruption of the skin
(n)blossoming, flowering, florescence, inflorescence, anthesis, efflorescencethe time and process of budding and unfolding of blossoms
(n)efflorescence, blooma powdery deposit on a surface