Marimo
4.9 out of 5 (48 experiences)
Survivor
Also known as
Marimo Moss Ball, Moss Ball Pets, Lake Ball and Marimo Moss Balls
Taxonomy
Aegagropila linnaei
Aegagropila
Pithophoraceae
Cladophorales
How to care for Marimo
How often to water your Marimo
every 7
Marimo needs 0.5 cups of water every 7 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
7
Finding light for Marimo in your home
a window
Marimo may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your region to see how the current weather in your area affects the placement of Marimo in your home 🏡.
How to fertilize Marimo
Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Marimo after it doubles in size or once a year—whichever comes first.
-
BARRY IS GROWING?? What is Barry GROWING?!-!-!- @nellz4estfairyz :,) is he evolving or do I have an aquatic hitch-hiker?! Bahaha any guessesss 🤩🥳🥹🌱 #Marimo #mossBallerinas #MossBall oh and I stopped changing his water so often 😩 I’m letting him cook in his kitchen 🧑🍳 and added some fancy sea salt to ✨give a little bit of spice✨ !! And ofc distilled 💦💧water for Barry The Ball!! It’s prolly beeen uhh two months since I changed his water? Should I let him cook… or clean his kitchen?!?!🥹😩
-
Hello everyone! I have a Marimo and would love some tips for it! I was also wondering how to make them bigger #Marimo
-
I think the color of moss balls are getting lighter I have these two little ones from moss ball pets that seemed to be doing ok for 2 months. They were getting fuzzy & oxygenating in the sun. Then I wanted to try to put them in water that I refrigerated for 15 minutes & then they seemed to change, they didn’t oxygenate in the sun. A week later, I put them in the fridge & they seemed lighter in color after & they lost the fuzz & became more like felt balls again. When squeezing them a little, one felt softer than the other. I then read that they don’t like drastic temperature changes & maybe that’s what happened. I know it doesn’t look that much lighter in the photo but in person I noticed a difference. Did I do something wrong? How can I get them healthy again? Should I add aquarium salt? #Marimo
-
Spa Day! 💅 💇♀️ 🫧 💆🏾♀️ 🛁 🧘♀️ I have heard marimo moss balls like to have a spa day in the refrigerator occasionally, so here we are! Although, I’m not sure we need the refrigerator for this treatment because Kōhē lives in my kitchen window sill, which is made of stone, and unfortunately for the other plants, there is a cold draft that comes in around the sill. At first I was worried about my moss ball and its water getting too cold, but now I think he likes it! He looks to be growing a little or getting some fuzzier hair? #HappyPlants #MossBallerinas #Marimo #PlantsMakePeopleHappy #PlantAddict #SpaDay4Plants #NEPAGregGang #theamigos #ADHDPLANTLOVERS #ADHDSQUIRREL #MossBall @ILoveMyPlants @Prentyce @WelsomeRhodotus @Plants_Galore
-
Marimo Moss Ball Pet 🦠 I feel like this is the 2025 equivalent of a pet rock. I had a pet cinder block when I was a kid. 😆 I painted it and and fashioned a leash. #Marimo #MossBall #theamigos #brunchataudreys #NEPAGregGang #ADHDPLANTLOVERS #PlantsMakePeopleHappy #HappyPlants #PlantAddict edited to add #mossBallerinas 😆🦠
-
I decorated my Marimo moss’s terrarium!🌱🪴🌿What else could I add? #HappyPlants #PlantCorner #PlantAddict #Marimo #PlantsMakePeopleHappy
-
Does salt hurt Marimo moss? I spotted some pests in my new Marimo moss balls that were originally in a fish tank and I soaked it in salt for 15 minutes to kill them. Does salt hurt Marimo moss and does it get rid of pests? #PestControl #NewPlantMom #PlantCorner #PlantMoms
-
Hi there! I'm going to the garden centre tomorrow 🥹 what plants do you recommend? Minimal water need! I love succulents, marimo mossballs, monstera adansonii and lots more 💖 -Mossy
-
I’m not sure if it’s dead or not? Never had one before. How can I tell and how to bring him back to life? #Marimo
-
Absolutely ecstatic to add these wonderful brothers and sisters to my plant fronds #Marimo
Care Summary for Marimo
Marimo
Greg recommends:
Water
0.5 cups every 7 days
Placement
< 3ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
What other plant parents say
Survivor 32
Fast grower 6
Easy to propagate 5
Blooms easily 1
Large, lush leaves 1
Pest magnet 1
12/06/2021
Adorable
09/01/2021
very easy to look after
08/30/2021
Easy to care for
Easy to propagate
Survivor
08/15/2021
Takes little to no work to sustain just some water changes and daily/weekly stirs.
Survivor
08/10/2021
A moss ball/marimo is a very good plant for beginner plant caretakers! They are easy to take care of and a nice plant to have in the home.
Survivor
Easy to propagate
07/31/2021
Such cute water buddies. These guys were my gateway to plant care (& bettas). Easy to care for and super fun to look at.
Survivor
07/16/2021
they’re kind of like pet rocks !! so cute
06/21/2021
A marimo moss ball is extremely difficult to kill. It’s basically a pet rock. All you have to do is give it fresh water once a week and keep it far away from direct sunlight.
Fast grower
Easy to propagate
Survivor
06/16/2021
It’s such an easy plant to look after. As long as you don’t put it in direct sunlight and keep it in cold water then you are all good.
Survivor
06/11/2021
•loves cold water and low light
•change out water when remember to to stop carbon build up
05/29/2021
This pet is amazing
Blooms easily
Fast grower
05/24/2021
great for when you want a plant that basically takes care of itself, just add water when it’s low and that’s all you need
05/23/2021
Super easy, little care and so cute!
Survivor
Fast grower
05/21/2021
if it starts to brown, sprinkle some salt into the water!
Survivor
05/20/2021
It’s just a lil moss guy who sits on my desk! I love him. Change the water once a week but it’s not picky.
Survivor
05/18/2021
idk why but she is so cute and it’s literally just a plant anyway you should get her because she’s really really easy to take care of. cuz she just sits there😃.
05/11/2021
they are super easy to take care of and really cute
Survivor
05/10/2021
Great beginner “plant”. Pretty nice and requires little maintenance compared to others. Great to teach kids responsibility as a “pet” also I’ve seen people put little hats on them and decorate their containers ♥️♥️♥️
05/06/2021
doesn’t really do much but helps aerate water. i have one in my fish tank (non toxic) and some in my water propagations. they themselves are so easy to propagate, you just pull them apart. just don’t have it in direct sunlight :)
Fast grower
Easy to propagate
Survivor
05/05/2021
They are super easy plants; all they need is very cold water, a glass container of some sort, no direct sunlight (or else they start to brown and smell bad) and a stir every once in a while (to mimic they being rolled by the water and waves). They are also very cute! They need like little to no attention. 😊
Survivor
Trending in your area
Similar to Marimo
✨ Discover rare plants
Lithops
White Apple Moth Orch…
Aloe 'Lavender Star'
Aglaonema 'Green Bowl'
Philodendron 'Rio'
Sedeveria 'Blue Elf'
Hoya 'Memoria'
Begonia lubbersii
Variegated Arrowhead …
Anastasia Weeping Fig
Peperomia 'Harmony's …
Sarcochilus fitzgeral…
Skeleton Key Pothos
Rhipsalis clavata
Astroloba congesta
Blue Moon Wisteria
