Overgrowth (noun)

1. Excessive growth of plants or trees that prevent light reaching other plants or cover other vegetation.
2. Excessive growth or increase of anything.

Origin:

Late 16th century: from over- + growth.

Examples:

1. The overgrowth of weeds in the garden was suffocating the flowers.
2. Overgrowth of bacteria in the gut can lead to digestive problems.
3. The overgrowth of the city has led to urban sprawl.
4. The overgrowth of housing developments has put pressure on the local infrastructure.
5. The overgrowth of algae in the lake was a problem for local fish populations.