Nouns

(n)blossoming, flowering, florescence, inflorescence, anthesis, efflorescencethe time and process of budding and unfolding of blossoms
(n)unfolding, floweringa developmental process“the flowering of antebellum culture”

Adjectives

(a)floweringwhen a plant is in a state of possessing one or multiple flowers and/or blooms“a flowering plant”