Marimo moss balls are a highly unique and rare form of algae growth. They can only be found growing in a few lakes throughout the world, which are located in Japan, Iceland, Scotland, and Estonia. As the algae grows in these lakes, the movement of the waves causes them to gradually form into spheres of soft, green algae with a fuzzy, velvet-like texture. Marimo balls are regarded as good luck charms in Japan, and since they have been known to live to 200 years or longer, they are often kept as family heirlooms. They are thought to symbolize close bonds between family members or close-knit friends, and are often passed down to children and grandchildren or nieces and nephews. By the time future generations receive the Marimo, they will be larger in size and will continue to grow with each generation. Additionally, Marimo are sometimes given to young children as "pets," since their care requirements are very minimal.


Your reagent jar marimo will come deconstructed with marimo in tiny zippy bag, separate river stones and glass.



2oz jar with Nano 1/2" ball    3 9/16" tall

4oz jar with Nano 1/2" ball    4 3/8" tall

250ml jar with Nano 1/2" ball

500ml jar with Small 1.25" ball



Marimo in Reagent Jar

  • Place your marimo moss ball in a glass vase or jar & keep out of direct sunlight.  Change the water in your vessel every 2 weeks or when sediment appears in the water.  To keep your marimo from shedding, you can roll the ball like a meatball & return to the water.  Marimo balls grow at a rate of 5mm a year, so you can keep your plant in its vessel for a long time.


SUN., MON.: 11:00 AM - 5:00 PM


WED. thru SAT.:  11:00 AM - 6:00 PM

The Weathered Barn

41 Front St.

Greenport, NY 11944

Tel: 631.477.6811

  • Facebook Clean
  • White Instagram Icon

© 2020 The Weathered Barn