Pistia Species, Nile Cabbage, Shellflower, Water Cabbage, Water Lettuce

Pistiastratiotes

Family
Araceae (a-RAY-see-ee)
Genus
Pistia (PEES-tee-uh)
Species
stratiotes (stra-tee-OH-tees)
Synonym
Pistia minor
Pistia crispata
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Height
under 6 in. (15 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
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
Mid Summer
Late Summer/Early Fall
Other Details
Category
Ponds and Aquatics
Water Requirements
Very high moisture needs; suitable for bogs and water gardens
Foliage Color
Chartreuse/Yellow
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
Plant is viviparous
Seed Collecting
Regional

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

Smiths, Alabama

Tuscaloosa, Alabama

Bartow, Florida

Boca Raton, Florida

Fort Lauderdale, Florida

Miami, Florida

Orange Springs, Florida

Rockledge, Florida

Venus, Florida

Hawkinsville, Georgia

Olney, Maryland

Mohawk, New York

Cleveland, Ohio

Hulbert, Oklahoma

Vieques, Puerto Rico

Lascassas, Tennessee

Richmond, Texas

Beckley, West Virginia

Hinton, West Virginia

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Gardener's Notes:

8
positives
3
neutrals
5
negatives
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P
P
| April 2011 | negative

i tried very hard to keep them flourishing in ma garden...but to no avail... is there any conditions for the plants to thrive??? i want t...Read More

J
Hinton, WV | August 2010 | positive

I have this plant in our pond since the beginning of the summer. I started with three of them from the pet store. Now there are about 1...Read More

V
(Zone 8a) | February 2009 | negative

Illegal in TX

W
W
Hulbert, OK (Zone 7a) | September 2007 | positive

Before you put this in your pond, be sure you have time
to take out the offspring.

We've grown many things in our ...Read More

F
Josephine, Arlington, TX (Zone 8a) | December 2006 | negative

Water Lettuce Pistia stratiotes is native to Texas and other States and is considered an invasive noxious plant, and is prohibited in Texas.

S
Lascassas, TN (Zone 7a) | September 2006 | positive

I've not had good fortune with water plants, but the water lettuce has held up against the overwhelming odds in my semi-shade little gar...Read More

C
West Friendship, MD (Zone 6b) | March 2006 | positive

This is the perfect pond cover plant in central Maryland. They spread quickly and are much easier to control than water hyacinth. The b...Read More

A
Interlachen, FL | December 2004 | negative

This plant is a danger to warm areas. It reproduces exponetionally and reduces the oxygen levels in a body of water by reducing the water...Read More

V
| July 2004 | positive

This plant is thriving here in my pond on central Vancouver Island, Canada (off the West Coast, above Washington State). They are having...Read More

M
(Zone 11) | March 2004 | neutral

If introduced to optimal conditions, this plant can block water ways, and will ban natural species from their habitat. But on closed pond...Read More

T
Rockledge, FL (Zone 10a) | January 2004 | neutral

Here in Florida, they seem to thrive during the summer. The growth rate is almost exponential.

They barely survive the co...Read More

K
K
L.A. (Canoga Park), CA (Zone 10a) | January 2004 | negative

This plant can barely survive the hot sun in our yard. Then what is left after summer, the winter finishes off.

M
Archer/Bronson, FL (Zone 8b) | January 2004 | positive

I keep this plant in my stillwater vase (huge) to oxygenated for the guppies. The lettuce will multiply quickly and I move them to the l...Read More

M
M
Ewing, KY (Zone 6a) | August 2002 | positive

This plant really multiplies fast great for fast pond cover.

T
T
tiG
Newnan, GA (Zone 8a) | August 2002 | positive

Will help eat the extra nutrients in your pond that feed green algae. Remove yellow leaves and add to the compost pile. Divide babies fro...Read More

T
T
Murfreesboro, TN (Zone 7a) | August 2001 | neutral

A floating oxygenator, Pistia stratiotes provides oxygen to fish and helps keep pond water clear.

Take care to en...Read More

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