- Azolla caroliniana
- AKA Carolina Azolla, Carolina Mosquito Fern, Water velvet, duckweed fern, Koi candy, water fern
- Native American plant
- Floating fern like plant
- Grows fast doubling its biomass every two to three days under ideal conditions. The only known limiting factor on its growth is phosphorus. An abundance of phosphorus (such as a chemical runoff from a lawn) can lead to Azolla blooms.
- Cup size portion
- My Koi eat it
- Has Red and or Green leaves depending on time of year and weather conditions
- This is one the few plants I will ship in the off season as it is very cold hardy
- If you are ordering this plant during the fall or winter, please let me know when you want it shipped
- Azolla is native to the Americas, from Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, into Central and parts of South America
- It is a freshwater aquatic fern, with scale-like fronds 5–10 mm long, green to reddish, most often reddish in strong light and in winter.
- Covered in fine hairs giving the appearance of velvet
- It is able to fix nitrogen
- It can survive winter water temperatures of 5 °C, with best summer growth between 25-30 ºC
- Can not survive prolonged freezing
- Used as a bio fertilizer is parts of Asia for over a thousand years
- Used as a food for fish and poultry
- And you thought this was just another plain old water plant
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