late-blooming

[leyt-bloo-ming]

adjective

of or characteristic of a late bloomer: late-blooming brilliance.
late in coming about or showing full development: the country's late-blooming interest in soccer.

Origin of late-blooming

First recorded in 1965–70

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Had the security service picked her up, they would have determined she was a late-blooming artist of a particularly modern kind.
Sarai Sierra, American Slain in Istanbul, Was an Artist in the Making
Michael Daly
February 5, 2013

Lactea and pedunculata are both good white species, and the late-blooming Orcutti has light blue flowers.
The Book of Bulbs
Samuel Arnott
Late-blooming dahlias and asters made spots of starry color in the green.
Maida's Little Shop
Inez Haynes Irwin
So should he have exhaled the natural fragrance of a late-blooming flower of hereditary honour.
Madame de Mauves
Henry James
A hybrid between the two 81 from which could be evolved a late-blooming almond is a consummation to be wished.
The Peaches of New York
U. P. Hedrick
Even now, when the chills of autumn had begun to blow through its bowers, it was over-clambered with late-blooming flowers.
Joan of the Sword Hand
S(amuel) R(utherford) Crockett