North America Native Plant

Lopsided Rush

Botanical name: Juncus secundus

USDA symbol: JUSE

Life cycle: perennial

Habit: grass

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

Lopsided Rush: A Humble Native Grass for Wet Spots If you’ve ever wondered what to do with that perpetually soggy corner of your yard, meet the lopsided rush (Juncus secundus) – a native North American grass that actually enjoys having wet feet! This unassuming perennial might not win any beauty ...

Lopsided Rush: A Humble Native Grass for Wet Spots

If you’ve ever wondered what to do with that perpetually soggy corner of your yard, meet the lopsided rush (Juncus secundus) – a native North American grass that actually enjoys having wet feet! This unassuming perennial might not win any beauty contests, but it’s a reliable workhorse for challenging growing conditions where other plants fear to tread.

What Is Lopsided Rush?

Lopsided rush is a native perennial graminoid – basically a fancy way of saying it’s a grass-like plant in the rush family. Despite its common name, don’t expect dramatic lopsided growth; the name refers to the subtle way its flower clusters tend to lean to one side. This fine-textured plant forms modest clumps and reaches about 1.5 feet tall at maturity with an erect, bunching growth habit.

Where Does It Grow Naturally?

This adaptable native has quite an impressive range across eastern North America. You’ll find lopsided rush growing naturally from Nova Scotia and Ontario down through the eastern United States, including states like Maine, New York, Pennsylvania, Virginia, North Carolina, Georgia, Alabama, and Louisiana, plus several Midwest states like Illinois, Indiana, and Missouri.

Why Consider Lopsided Rush for Your Garden?

Let’s be honest – lopsided rush won’t be the star of your garden show. Its green flowers are inconspicuous, blooming in late spring, and its brown seeds aren’t particularly showy either. But here’s why you might want it anyway:

  • Problem solver: Perfect for those tricky wet spots where other plants struggle
  • Native credentials: Supports local ecosystems and requires minimal inputs
  • Low maintenance: Once established, it pretty much takes care of itself
  • Versatile moisture tolerance: Can handle both wet and moderately dry conditions depending on your region
  • Hardy survivor: Tolerates temperatures down to -33°F

Where Does Lopsided Rush Fit in Your Landscape?

Think of lopsided rush as nature’s background singer – not flashy, but essential for the overall harmony. It’s perfect for:

  • Rain gardens and bioswales
  • Pond margins and stream banks
  • Naturalistic meadow plantings
  • Native plant gardens
  • Transitional zones between wet and dry areas

This plant shines in informal, naturalistic settings rather than formal garden beds. Pair it with other native wetland plants like blue flag iris, cardinal flower, or native sedges for a authentic ecosystem feel.

Growing Conditions and Care

Lopsided rush is refreshingly undemanding once you understand its preferences:

Soil: Thrives in coarse to medium-textured soils but struggles in heavy clay. Prefers acidic conditions with a pH between 4.9 and 6.8.

Moisture: Here’s where it gets interesting – depending on your region, this plant can be quite adaptable. In coastal areas, it handles both wet and dry conditions equally well. In mountainous regions, it typically prefers drier sites but can tolerate some wetness.

Light: Full sun lover that won’t tolerate shade

Hardiness: Extremely cold hardy, suitable for USDA zones 3-9

Maintenance: Minimal once established. The moderate growth rate means it won’t quickly outgrow its space.

Getting Started with Lopsided Rush

Fair warning: you probably won’t find lopsided rush at your local garden center. Commercial availability is limited, so you might need to source seeds or plants from native plant specialists or conservation organizations.

Propagation options include:

  • Seeds (though abundance is low and germination can be slow)
  • Bare root divisions
  • Sprigs from existing plants

Plant spacing should be fairly tight – anywhere from 4,800 to 11,000 plants per acre, depending on your desired coverage speed.

The Bottom Line

Lopsided rush won’t give you Instagram-worthy blooms or dramatic seasonal color changes. What it will give you is a reliable, low-maintenance solution for challenging wet spots in your landscape, plus the satisfaction of growing a native plant that belongs in your local ecosystem. If you’re creating a rain garden, restoring a wetland area, or simply want to embrace a more naturalistic gardening approach, this humble rush deserves a spot on your plant list.

Sometimes the most valuable plants in our gardens are the quiet ones that simply do their job without fanfare – and lopsided rush fits that description 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

Atlantic and Gulf Coastal Plain

FAC

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

Eastern Mountains and Piedmont

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Great Plains

FAC

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

Midwest

FAC

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

Northcentral & Northeast

FACU

Facultative Upland - Plants with this status usually occurs in non-wetlands but may occur in wetlands

Lopsided Rush

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

Juncales

Family

Juncaceae Juss. - Rush family

Genus

Juncus L. - rush

Species

Juncus secundus P. Beauv. ex Poir. - lopsided rush

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