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This item is unavailable for the remainder of the year but will be available next season.

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Floating Plant - Azolla
  • Free Floating Plant
  • Increases Shade Across Pond Surface
  • Promotes Natural Filtration

Azolla is a nitrogen-harboring true fern that is able to multiply its weight three times each week during the summer months. It is a small, flat, diminutive, moss-like plant that floats freely on the water surface, often forming extensive reddish mats. Young Azolla is generally bright green, becoming pink, red, or dark brown as the plant matures and when exposed to strong sunlight. Upon close examination, these floating mats are seen to consist of many tiny ferns with multiple pairs of individual overlapping scale-like leaves that resemble a cedar leaf. Each plant may have a branching stem with several pairs of leaves, but only a single dangling root. Azolla is an excellent source of supplemental food for koi and goldfish, or looks especially good when allowed to root and grow on the moist ledge of a waterfall or stream.

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Tech Specs

From product dimensions to operation manuals, the TECH SPECS tab contains all of the information you need to choose the right equipment for your pond.

Floating Plant - Azolla
Plant Type Floating Plant
Hardiness Zones 7 to 11
Growing Light Full Sun To Partial Shade
Flower Color None
Bloom Time N/A
Plant Size Vertical Under 1"
Also Known As Azolla Caroliniana, Fairy Moss, Water Fern

Mail Order: What To Expect

Plants you receive by mail need time to adjust. Your plants will arrive as: Bare Root (only root and little to no foliage), Bunches (several stems or groupings of plants) or as a Net Pot (roots with some foliage). Upon arrival, they may not appear lush but given time & proper care, they will flourish!

Planting Instructions

Simply place in water and plant will float freely.


Fertilization is typically not needed for Azolla as they take excess nutrients from your pond water. If needed, Microbe-Lift® Bloom & Grow™ can be used.

Plant Maintenance

For best results, trim or prune as leaves begin to turn yellow or brown, remove them completely, discarding them to keep as much excess organic material out of water-body as possible.

Winter Care

In Zones 6 and lower, discard Azolla after the first hard frost.

What others are saying

5 out of 5

Customer Rating

"Quick pond cover"Dee of New Hudson, MI

I ordered this floating plants along with water lilies. I was looking for shade on my pond that is in the sun all the time. This plant really helped and quickly spread in my pond. My fish seem to be showing quite an interest in it also,.

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1 out of 5

Customer Rating

"Azolla"turpie of san rafael, CA

Did not arrive green disappeared from pond surface in two days

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1 out of 5

Customer Rating

"Godazolla"Chuck Friedman of Wendell, NC

This plant looked like a green velvet mass. I had to magnify it to view its miniscule foliage. A little spreads far covering my entire 10+ square feet of pond surface area. The Koi ate it and dirtied the pond water until they ate it all. The water cleared after it was consumed. Would not buy again. Other aquatic plants I ordered were fine.

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