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Cutleaf watermilfoil

Myriophyllum pinnatum

Also called Eastern water-milfoil, Cut Leaved Water Milfoil, Pinnate Water Milfoil, Cutleaf Water Milfoil, Foxtail, Cut Leaf Water Milfoil, Green Parrotfeather

Cutleaf watermilfoil
Photo: Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possession, Public domain

Cutleaf watermilfoil is a submerged to emergent aquatic perennial native to eastern North America, grown in ponds and water gardens. The key to growing it is keeping its roots in shallow, nutrient-rich water with plenty of sun.

Family
Haloragaceae (Halorag family)
Grows as
Aquatic
Light
Full sun, Part shade
Water
Keep the roots submerged in shallow water at all times; it grows in water rather than soil.
Soil
Muddy or sandy pond bottom, or a container of heavy garden soil or aquatic planting mix submerged in water.
Temperature
10–28 °C; hardy to around -20 °C in winter when the water stays unfrozen below the surface.
How easy
Easy
Native range
S. Canada to C. & E. U.S.A., Mexico (Chihuahua, Michoacán)
Climate
temperate

About

Myriophyllum pinnatum, common names cutleaf water-milfoil, green parrot's-feather, and pinnate water-milfoil, is a species of Myriophyllum.

Other Myriophyllum plants

Alternateflower watermilfoil · Parrot feather watermilfoil · Upright Water Milfoil · Western watermilfoil · Myriophyllum implicatum · Myriophyllum indicum · Red Stemmed Parrot's Feather · Shortspike watermilfoil · Amphibious Water Milfoil · Spiked Water-milfoil · Myriophyllum variifolium · Whorl-leaf watermilfoil

Text excerpted from the Wikipedia article Myriophyllum pinnatum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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