Quick Facts
Height: 160 ft. or more
Blade Length: 10–14 in.
Did You Know?
Kelp is actually not a plant; it is an alga. There are more than 20 species of kelp found in the waters around California, but giant kelp is the species that grows the fastest. It can grow by as much as two feet each day!
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Last updated: May 13, 2021