Azolla Species, Carolina Mosquito Fern, Mosquito Fern, Water Velvet

Azollacaroliniana

Genus
Azolla (a-ZOL-luh)
Species
caroliniana (kair-oh-lin-ee-AN-uh)
Synonym
Azolla bonariensis
Azolla densa
Azolla portoricensis
Salvinia azolla
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Partial to Full Shade
Full Shade
Foliage
Grown for foliage
Evergreen
Succulent
Height
under 6 in. (15 cm)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
N/A
Bloom Color
Inconspicuous/none
Bloom Time
N/A
Other Details
Category
Ponds and Aquatics
Water Requirements
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Orange/Apricot
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
4.5 or below (very acidic)
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
8.6 to 9.0 (strongly alkaline)
over 9.1 (very alkaline)
Patent Information
Propagation Methods
From spores
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Tuscaloosa, Alabama

Bartow, Florida

Fountain, Florida

Miccosukee Cpo, Florida

Tallahassee, Florida

Barbourville, Kentucky

Cleveland, Ohio

Crossville, Tennessee

Wytheville, Virginia

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Gardener's Notes:

3
positives
4
neutrals
0
negative
Sort By:
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T
| April 2014 | positive

I think it is this species of Azolla I have. (is this one in Australia? Its not the trianglar Aussie variety I have). It is a great pla...Read More

S
Hinsdale, IL | December 2010 | neutral

pondplants.biz sells this plant, I think I'll get some and grow it in doors this winter.

F
Josephine, Arlington, TX (Zone 8a) | January 2007 | neutral

Mosquito Plant, Carolina Mosquito Fern Azolla caroliniana is native to Texas and other States.

C
Crossville, TN (Zone 7a) | January 2005 | positive

Adds a continual splash of color to ponds and slow moving streams. Our fish leave this alone for the most part, eating instead the duckw...Read More

N
Boca Raton, FL (Zone 10a) | November 2004 | positive

This is an aquatic plant that is native to the U.S. and is widely distributed throughout much of the East and Midwestern U.S., from New E...Read More

T
Mercer, PA (Zone 5a) | October 2004 | neutral

The name is defined as:
Azolla: name obscure
caroliniana: from Carolinas

K
K
L.A. (Canoga Park), CA (Zone 10a) | October 2004 | neutral

Cute stuff, but you can't keep koi and azolla in the same pond. The koi will eat it all.

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Featured
Crab spider
(Runcinia grammica)
Ruby-throated Hummingbird
(Archilochus colubris)