North America Non-native Plant

Pond Lovegrass

Botanical name: Eragrostis japonica

USDA symbol: ERJA4

Life cycle: annual

Habit: grass

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Eragrostis glomerata (Walter) L.H. Dewey (ERGL)  âš˜  Poa glomerata Walter (POGL11)   

Pond Lovegrass: A Wetland Grass Worth Understanding If you’ve ever spotted a delicate, fine-textured grass growing around pond edges or in consistently moist areas of your landscape, you might be looking at pond lovegrass (Eragrostis japonica). This annual grass has a knack for showing up in wet spots, and while ...

Pond Lovegrass: A Wetland Grass Worth Understanding

If you’ve ever spotted a delicate, fine-textured grass growing around pond edges or in consistently moist areas of your landscape, you might be looking at pond lovegrass (Eragrostis japonica). This annual grass has a knack for showing up in wet spots, and while it’s not native to North America, it’s become a familiar sight across the southeastern United States.

What Exactly Is Pond Lovegrass?

Pond lovegrass is an annual grass that belongs to the love grass family. Don’t let the romantic name fool you – it’s called lovegrass because the seeds tend to stick to clothing and fur, literally loving to travel with you! This particular species has also been known by the scientific names Eragrostis glomerata and Poa glomerata in older botanical references.

As a non-native species originally from Asia, pond lovegrass has established itself across twelve states, primarily in the southeastern and south-central regions including Alabama, Arkansas, Florida, Georgia, Illinois, Louisiana, Mississippi, Missouri, Oklahoma, South Carolina, Tennessee, and Texas.

Where You’ll Find It Growing

One of pond lovegrass’s defining characteristics is its love for wet feet. Depending on where you live, this grass has different relationships with water:

  • In the Atlantic and Gulf Coastal Plain: It’s facultative, meaning it can grow in both wet and dry areas
  • In the Eastern Mountains and Piedmont: It’s an obligate wetland plant, almost always found in consistently moist conditions
  • In the Great Plains: Also an obligate wetland species, sticking to wet areas

Should You Plant Pond Lovegrass?

Here’s the thing about pond lovegrass – most gardeners don’t actually plant it intentionally. It tends to show up on its own in suitable habitats, particularly around water features, rain gardens, or naturally wet areas of your property. Since it’s an annual, it completes its entire life cycle in one growing season, dying back each winter and returning from seed the following year.

While pond lovegrass isn’t considered invasive or problematic, it’s also not providing the same ecological benefits that native grasses would offer to your local wildlife and pollinators. If you’re looking to enhance wetland areas in your landscape, consider these native alternatives instead:

  • Native sedges like fox sedge (Carex vulpinoidea)
  • Wild rice (Zizania species) for larger water features
  • Native rushes (Juncus species)
  • Regional wetland grasses specific to your area

Growing Conditions and Care

If pond lovegrass has established itself in your landscape, understanding its preferences can help you manage it effectively. This grass thrives in:

  • Consistently moist to wet soils
  • Full sun to partial shade conditions
  • USDA hardiness zones 7-10
  • Areas with regular water availability

Since it’s an annual, pond lovegrass will naturally die back with the first frost and won’t return unless conditions allow seeds to germinate the following season. If you want to encourage it, simply maintain moist soil conditions. If you’d prefer to discourage it, improving drainage or establishing competitive native plants can help reduce its presence over time.

The Bottom Line

Pond lovegrass is one of those plants that’s neither hero nor villain in the garden world. It’s simply a grass that has found a niche in wet areas across the southeastern United States. While it won’t harm your landscape, it also won’t provide the same ecological benefits as native alternatives. Whether you embrace it or replace it with native options depends on your gardening goals and how much you value supporting local ecosystems.

If you’re planning a wetland garden or managing naturally wet areas of your property, consider this an opportunity to research and plant native grasses and sedges that will provide food and habitat for local wildlife while still giving you that soft, naturalistic look that makes pond edges so appealing.

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

FAC

Facultative - Plants with this status can occur in wetlands and non-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

Pond Lovegrass

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Eragrostis von Wolf - lovegrass

Species

Eragrostis japonica (Thunb.) Trin. - pond lovegrass

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