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Various-leaf Water-milfoil

Myriophyllum heterophyllum

Last reviewed: August 2026

Various-leaf Water-milfoil (Myriophyllum heterophyllum)
Photo: Robert H. Mohlenbrock. USDA NRCS. / Wikimedia Commons (Public domain)

Toxicity unknown

Various-leaf Water-milfoil (Myriophyllum heterophyllum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

12"–48" H × 12"–36" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CT, DE and 30 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Various-leaf water-milfoil is an aquatic perennial that grows submerged or emergent in ponds, wetlands, and water gardens. It produces feathery, finely divided leaves and small spikes of flowers above the water surface during summer months. This plant requires consistently wet or aquatic conditions to thrive.

In an HOA neighborhood

Various-leaf Water-milfoil takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Requires water feature or bog conditions
  • May be considered invasive in some areas
  • Aquatic growth habit unsuitable for typical landscaping

Wildlife value

This aquatic plant provides habitat and food for waterfowl, fish, and aquatic insects. It offers shelter for small fish and amphibians while contributing to pond ecosystem health.

Common questions

How much sun does Various-leaf Water-milfoil need?
Various-leaf Water-milfoil grows best in part shade conditions.
When does Various-leaf Water-milfoil bloom?
Various-leaf Water-milfoil blooms in June, July, and August.
Where is Various-leaf Water-milfoil native?
Various-leaf Water-milfoil (Myriophyllum heterophyllum) is native to AL, AR, CT, DE and 30 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Various-leaf Water-milfoil HOA-friendly?
Various-leaf Water-milfoil takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Various-leaf Water-milfoil? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz