Grows well under fluorescent lighting without natural sunlight. It also grows without a pot or soil. You can even glue one to ...

The dried skeletal remains of marine hydrozoans are dyed green and sold as no-maintenance “houseplants.” Jessica Damiano writes weekly gardening columns for the Associated Press.

This is because, according to Newsweek, instead of the typical polyps found on the deepsea coral, hydrozoans were found instead. Hydrozoans do not grow on coral unless it is dead. This proves just ...