Nouns ending in -ure are usually feminine.
The suffix often marks a result, state, or collective.
Is culture masculine or feminine?
laculture
The rule behind it
94.3% of -ure nouns are feminine
In context
La culture se transmet de génération en génération.
Culture is handed down from generation to generation.
La culture américaine a été importée d'Europe.
The American culture had been transplanted from Europe.
J'ai beaucoup appris sur la culture grecque.
I learned a lot about Greek culture.