How tall can Common Reed (Phragmites australis) grow?

Common Reed (Phragmites australis) is known for its impressive height, typically reaching between 6 to 15 feet under optimal growth conditions. This tall, perennial grass thrives in wetlands and areas with abundant moisture, making it a prominent feature in many aquatic ecosystems. Its height provides essential habitat and nesting sites for various wildlife, while also playing a role in water filtration and erosion control.

In contrast, the other options propose heights that underrepresent the growth potential of Common Reed. The grass generally exceeds those lower heights, which is significant when considering its ecological impact and management in aquatic environments.