Marimo Balls

Thrives in low to medium indirect light. No direct sunlight! Change their water every two weeks with filtered, room temperature water.

The name of Marimo (毬藻) originated from Japanese botanist Tatsuhiko Kawakami (毬 ‘mari’ = ball and 藻 ‘mo’ = generic term for aquatic plants) who first described them growing in lakes on the island of Hokkaido. The Marimo’s shape is the result of freshwater lake motion. Marimo grow quite slowly, at only a few millimeters a year. Marimo moss, as it’s known, is not actually moss at all. Aegagropila linnaei is a freshwater, fuzzy, filamentous green algal colony. As the colony grows, the inner cells go dormant. If the ball is ever split apart, those cells can reactivate to repair the colony - even under artificial light! Read more.