Collocations for maturity - noun

great, growing, increasing, new-found
I can see an increasing maturity in how she understands the world.

artistic, emotional, intellectual

have
demonstrate, display, show
She has shown great maturity in her life choices.

gain, grow in
These latest paintings show how the artist has really grown in maturity.

lack

full
It can take years for these plants to reach full maturity.

physical, psychological, sexual

attain, come to, grow to, reach
approach, near
The insects lay eggs when they approach maturity.