North America Native Plant

Manyfruit Primrose-willow

Botanical name: Ludwigia polycarpa

USDA symbol: LUPO

Life cycle: perennial

Habit: forb

Native status: Native to Canada âš˜ Native to the lower 48 states  

Manyfruit Primrose-Willow: A Native Wetland Wonder for Water-Loving Gardeners If you’ve been dreaming of creating a thriving wetland garden or adding some native flair to that perpetually soggy corner of your yard, meet your new best friend: the manyfruit primrose-willow (Ludwigia polycarpa). This unassuming but hardy perennial might just be ...

Manyfruit Primrose-Willow: A Native Wetland Wonder for Water-Loving Gardeners

If you’ve been dreaming of creating a thriving wetland garden or adding some native flair to that perpetually soggy corner of your yard, meet your new best friend: the manyfruit primrose-willow (Ludwigia polycarpa). This unassuming but hardy perennial might just be the perfect solution for those challenging wet spots that leave most gardeners scratching their heads.

What Makes This Plant Special?

Don’t let the humble name fool you – manyfruit primrose-willow is a true North American native with serious wetland credentials. This herbaceous perennial belongs to the evening primrose family and has earned its place as a reliable performer in wet soils across much of the continent.

As a forb (that’s garden-speak for a non-woody flowering plant), Ludwigia polycarpa brings delicate beauty to waterlogged areas where many other plants would simply give up and rot. Its narrow, alternate leaves create an attractive backdrop for small, cheerful yellow flowers that bloom from summer through fall.

Where Does It Call Home?

This adaptable native has quite the impressive résumé when it comes to geography. You’ll find manyfruit primrose-willow naturally occurring across 23 states and into Ontario, Canada. Its range includes Alabama, Arkansas, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, Ohio, Pennsylvania, Tennessee, Vermont, Virginia, West Virginia, and Wisconsin.

The Wetland Specialist

Here’s where things get interesting for water gardeners: manyfruit primrose-willow is classified as an Obligate Wetland plant across all regions of North America. Translation? This plant absolutely loves wet feet and thrives in conditions that would drown most garden favorites. We’re talking consistently moist to saturated soils – the kind of conditions you’d find at pond edges, in rain gardens, or those low spots in your yard that never quite dry out.

Garden Role and Design Potential

If you’re working on wetland restoration, creating a rain garden, or designing around a natural or artificial pond, manyfruit primrose-willow deserves serious consideration. Its spreading habit makes it excellent for stabilizing soil along water features, while its delicate flowers add seasonal interest without overwhelming more showy companions.

This plant works beautifully in:

  • Bog gardens and wetland restoration projects
  • Rain gardens and bioswales
  • Pond and stream margins
  • Natural areas with consistently moist soils

Growing Conditions That Make It Happy

Success with manyfruit primrose-willow comes down to one key factor: moisture, moisture, moisture. This plant thrives in full sun to partial shade, but the soil must remain consistently moist to saturated. Think of it as the opposite of those drought-tolerant plants everyone talks about – this one wants its roots wet year-round.

Hardy in USDA zones 4-8, it can handle cold winters as long as its wetland conditions are met. The plant naturally occurs in marshes, wet prairies, and along the edges of ponds and streams, so mimic these conditions for best results.

Planting and Care Tips

Getting started with manyfruit primrose-willow is refreshingly straightforward, assuming you have the right wet conditions:

  • Site selection: Choose the wettest spot in your garden – seriously, this plant can handle standing water
  • Soil: Any soil type works as long as it stays consistently moist; it’s quite tolerant of different pH levels
  • Planting: Spring is ideal for establishment, giving the plant a full growing season to settle in
  • Spacing: Be aware that this plant can spread in ideal conditions, so give it room or plan for management
  • Maintenance: Minimal care needed once established – just ensure consistent moisture

Wildlife and Pollinator Benefits

While manyfruit primrose-willow might not be the showiest plant in your garden, it pulls its weight when it comes to supporting local wildlife. The small yellow flowers attract native bees, flies, and other small pollinators, while the plant’s presence in wetland areas contributes to the overall ecosystem health that benefits birds, amphibians, and other wildlife.

Is This Plant Right for Your Garden?

Manyfruit primrose-willow isn’t for everyone – and that’s perfectly okay! This plant has very specific needs that make it unsuitable for typical garden beds. However, if you have wet areas that challenge other plants, if you’re passionate about native species, or if you’re working on wetland restoration, this humble perennial could be exactly what you’ve been looking for.

Consider this plant if you have consistently wet soils and want to work with nature rather than against it. Skip it if you’re looking for something for dry areas or formal garden beds. Sometimes the best gardening strategy is simply choosing the right plant for the right place – and for wet places, manyfruit primrose-willow fits the bill perfectly.

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

Arid West

OBL

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

Atlantic and Gulf Coastal Plain

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

Northcentral & Northeast

OBL

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

Western Mountains, Valleys, and Coast

OBL

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

Manyfruit 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 polycarpa Short & Peter - manyfruit 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