North America Native Plant

Anglestem Primrose-willow

Botanical name: Ludwigia leptocarpa

USDA symbol: LULE4

Life cycle: annual

Habit: subshrub

Native status: Native to the lower 48 states âš˜ Native to Puerto Rico  

Synonyms: Jussiaea leptocarpa Nutt. (JULE5)  âš˜  Ludwigia leptocarpa (Nutt.) H. Hara var. meyeriana (Kuntze) Alain (LULEM4)   

Anglestem Primrose-Willow: A Native Wetland Wonder for Water-Loving Gardens If you’ve been searching for a native plant that absolutely loves getting its feet wet, meet the anglestem primrose-willow (Ludwigia leptocarpa). This unassuming little wildflower might not win any beauty contests, but it’s got some serious staying power in America’s wettest ...

Anglestem Primrose-Willow: A Native Wetland Wonder for Water-Loving Gardens

If you’ve been searching for a native plant that absolutely loves getting its feet wet, meet the anglestem primrose-willow (Ludwigia leptocarpa). This unassuming little wildflower might not win any beauty contests, but it’s got some serious staying power in America’s wettest spots – and it just might be the perfect solution for that perpetually soggy corner of your yard.

What Makes Anglestem Primrose-Willow Special?

Don’t let the fancy name fool you – anglestem primrose-willow is a humble forb that knows its place in the world. As a native species throughout much of the southeastern and south-central United States, this annual to perennial herb has been quietly doing its job in wetlands for centuries. You’ll find it growing naturally from Texas all the way up to Pennsylvania, and down through Florida and into Puerto Rico.

The plant gets its anglestem moniker from its distinctive square-angled stems, while the primrose-willow part refers to its membership in the evening primrose family. It’s a classic case of a plant name that’s more interesting than the plant looks at first glance!

Where This Wetland Native Thrives

Here’s where anglestem primrose-willow really shines: it’s what botanists call an obligate wetland species. In plain English, that means this plant is basically a water baby – it almost always needs wet feet to be happy. You’ll spot it growing wild in:

  • Pond margins and lake shores
  • Ditches and swales
  • Freshwater marshes
  • Wet meadows and prairies
  • Rain garden overflow areas

Should You Plant Anglestem Primrose-Willow?

The answer depends entirely on what you’re trying to achieve and whether you’ve got the right conditions. This native beauty is perfect for gardeners who want to:

  • Create authentic wetland habitat
  • Stabilize soggy soil areas
  • Support native plant communities
  • Add subtle texture to water gardens

However, be aware that anglestem primrose-willow can be quite the spreader once it settles in. While this makes it excellent for erosion control and wetland restoration, it might not be the best choice for formal garden settings where you want plants to stay put.

Growing Conditions and Care

Successfully growing anglestem primrose-willow is refreshingly straightforward – as long as you can provide what it craves most: water, water, and more water.

Sunlight: Full sun to partial shade work well, though it tends to be most vigorous in sunny spots.

Soil: Consistently moist to saturated soils are essential. Clay, sandy, or organic-rich soils all work as long as they stay wet.

Hardiness: Hardy in USDA zones 6-10, making it suitable for most areas within its native range.

Water: This is non-negotiable – the soil should never dry out completely. Think bog garden rather than xeriscaping.

Planting and Maintenance Tips

Once you’ve got the right wet conditions, anglestem primrose-willow is remarkably low-maintenance:

  • Plant in spring after frost danger has passed
  • Space plants about 12-18 inches apart (though they’ll likely fill in the gaps on their own)
  • Keep soil consistently moist during establishment
  • Minimal fertilization needed – wetland soils are typically nutrient-rich
  • Allow plants to self-seed for natural colonies
  • Cut back in late fall if desired, though leaving seed heads benefits wildlife

The Wildlife Connection

While anglestem primrose-willow might not be the showiest pollinator magnet in your garden, it quietly supports native ecosystems. Its small yellow flowers attract various small pollinators, and the plant provides habitat and food sources for wetland wildlife. Plus, as a native species, it fits seamlessly into local food webs.

Is Anglestem Primrose-Willow Right for Your Garden?

This native wetland specialist is perfect for gardeners who embrace naturalized landscapes and have the wet conditions it requires. If you’re working on rain garden projects, pond edges, or wetland restoration, anglestem primrose-willow could be exactly what you need.

However, if you’re looking for a well-behaved border plant or don’t have consistently wet soil, you might want to consider other native options better suited to your conditions. Remember, the best native garden is one where plants can thrive in conditions that match their natural preferences.

Sometimes the most valuable plants aren’t the most glamorous ones – they’re the steady, reliable natives that quietly hold ecosystems together, one wet root at a time.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" matching plants to their ideal growing conditions, so they'll thrive with less work and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection is. While tags list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. Surprisingly, many popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. Also, it helps you make smarter gardening choices and grow healthy plants with less care and feeding, saving you time, frustration, and money while producing an attractive garden with greater ecological benefits.

Regions
Status
Moisture Conditions

Atlantic and Gulf Coastal Plain

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Caribbean

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Eastern Mountains and Piedmont

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Great Plains

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Midwest

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Anglestem Primrose-willow

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Myrtales

Family

Onagraceae Juss. - Evening Primrose family

Genus

Ludwigia L. - primrose-willow

Species

Ludwigia leptocarpa (Nutt.) H. Hara - anglestem primrose-willow

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA