Bull Kelp

strands of bull kelp floating on the ocean surface
Bull Kelp. NOAA.

Quick Facts
Height: Up to 120 ft.

Blade Length: Up to 15 ft.

Did You Know?
Bull kelp is actually not a plant; it is an algae. It is known as an "annual seaweed," which means that it becomes full-grown within a year and can grow up to ten inches in a single day!

Last updated: November 9, 2018