What term is used to describe the act of blooming or flourishing?

The term that best describes the act of blooming or flourishing is "effloresce." This word specifically refers to the process of flowering or the development of blossoms, capturing the essence of growth and the vibrant display of life often associated with plants. It conveys not only the idea of coming into full bloom but also implies a certain beauty and natural splendor that is tied to flourishing in a more poetic sense. The other terms, while related to growth and progress, do not carry the same specific connotation of blooming. "Emerge" suggests a coming into view or existence but lacks the floral imagery. "Expand" focuses on increasing in size or volume, while "develop" refers to the process of growing or advancing in condition or complexity, but neither relates directly to the visual or aesthetic aspects of blooming.