What are ocean plants, and can any of them be grown outdoors?

[johnjgourdine]

What are ocean plants, and can any of them be grown outdoors? Curious if marine plants can survive in a home garden or if they need special conditions to grow properly.

 

[Aisha]

Ocean plants are plants or plant-like organisms that grow in the sea, such as Seagrass, Kelp, and Sea Lettuce. Most ocean plants need saltwater and marine conditions, so they usually cannot be grown in normal outdoor gardens unless you have a saltwater aquarium or coastal environment.