Eurasian Water Milfoil

Myriophyllumspicatum

Genus
Myriophyllum (my-ree-oh-FIL-um)
Species
spicatum (spi-KAH-tum)
Synonym
Sun Exposure
Height
under 6 in. (15 cm)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
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)
Danger
N/A
Bloom Color
Bloom Time
Other Details
Category
Perennials
Ponds and Aquatics
Water Requirements
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
Patent Information
Propagation Methods
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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Gardener's Notes:

0
positive
2
neutrals
3
negatives
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C
ROSLINDALE, MA | June 2015 | negative

17 states have declared this a noxious weed or prohibited its sale as an invasive exotic species.

Where its sale or transp...Read More

J
Toronto, ON (Zone 6a) | June 2015 | neutral

It is fine in a container or aquarium only not in open water because it is invasive. Here in Canada, only garden centers sell for home p...Read More

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

Eurasian Watermilfoil Myriophyllum spicatum is naturalized in Texas and other States and is considered an invasive plant in Texas.

R
Cameron, WI | May 2006 | negative

This plant may help improve fishing, but it is very degrading to lakes. In the State of Wisconsin this is high priority invasive plant. I...Read More

J
J
North Clarendon, VT | August 2004 | negative

FYI: This plant is a Class B Noxious Weed in the state of Vermont. Its movement, sale, and/or distrbution is prohibited with fines upto...Read More

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