early-flowering vs early-blooming

early-flowering and early-blooming both are adjectives.

Word	Noun	Adjective	Verb	Adverb
early-flowering	No	Yes	No	No
early-blooming	No	Yes	No	No

As adjectives, early-flowering and early-blooming are synonyms defined as:

early-flowering and early-blooming: of plants that bloom during the spring

Other synonyms of early-flowering include late-spring-blooming, spring-blooming, spring-flowering.

early-flowering (adjective)	early-blooming (adjective)
of plants that bloom during the spring	of plants that bloom during the spring