1) Beyond budding 2) Blossoming 3) Burgeoning 4) Bursting into flower 5) Efflorescent 6) Florescent 7) Flourishing 8) Flowering 9) Full of flowers 10) In bloom 11) In flower 12) In full flower 13) Like flowers in spring 14) Like spring flowers 15) Mature 16) More than budding 
• (adv.) In or into bloom; in a blooming state.
A·bloom' adverb [ Prefix a- + bloom .] In or into bloom; in a blooming state. Masson. 
[adj] - bursting into flower
efflorescent adjective bursting into flower; `flowering spring trees`
in bloom; blossoming; flowering.