late-blooming vs autumn-flowering

late-blooming and autumn-flowering both are adjectives.

Word	Noun	Adjective	Verb	Adverb
late-blooming	No	Yes	No	No
autumn-flowering	No	Yes	No	No

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

late-blooming and autumn-flowering: of plants that bloom during the autumn

Other synonyms of late-blooming include autumn-blooming, fall-blooming, fall-flowering, late-flowering.

late-blooming (adjective)	autumn-flowering (adjective)
of plants that bloom during the autumn	of plants that bloom during the autumn