Collocations for maturity - noun

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

emotional, intellectual

have | show
She has shown great maturity in her behaviour this term.

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

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