North America Native Plant

Leathery Rush

Botanical name: Juncus coriaceus

USDA symbol: JUCO4

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Juncus setaceus Rostk., nom. utique rej. (JUSE3)   

Leathery Rush: A Graceful Native for Wet Gardens If you’re looking for a native plant that thrives in those soggy spots where other plants fear to tread, let me introduce you to leathery rush (Juncus coriaceus). This unassuming but elegant perennial might just be the solution to your wet garden ...

Rare plant alert!

Region: New Jersey

Status: Endangered, Listed Pinelands, Highlands Listed, S1: New Jersey Highlands region ⚘ New Jersey Pinelands region ⚘ Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Leathery Rush: A Graceful Native for Wet Gardens

If you’re looking for a native plant that thrives in those soggy spots where other plants fear to tread, let me introduce you to leathery rush (Juncus coriaceus). This unassuming but elegant perennial might just be the solution to your wet garden woes – though it comes with some important considerations every responsible gardener should know.

What Is Leathery Rush?

Leathery rush is a native perennial grass-like plant belonging to the rush family (Juncaceae). Don’t let the grass-like description fool you into thinking it’s ordinary – this slender beauty brings a unique architectural quality to the garden with its thin, wiry stems that form attractive clumps. As a true native of the southeastern United States, it’s perfectly adapted to our regional growing conditions.

Where Does It Naturally Grow?

Leathery rush calls the lower 48 states home, with a natural range spanning from New Jersey down through the Southeast and west to Texas and Oklahoma. You’ll find it naturally occurring in Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, New Jersey, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia.

Important Conservation Note

Before you rush out to find this plant (pun intended!), there’s something crucial to know: leathery rush is listed as Endangered in New Jersey with a rarity status of S1, meaning it’s critically imperiled in that state. If you live in New Jersey or plan to source plants from there, please ensure you’re working with reputable nurseries that use responsibly propagated material – never wild-collected plants.

Why Grow Leathery Rush?

Here’s where leathery rush really shines – it’s a wetland specialist that actually enjoys what most plants hate: wet feet! Depending on your region, it ranges from facultative wetland (usually in wetlands but sometimes in regular soil) to obligate wetland (almost always in wetlands) status. This makes it perfect for:

  • Rain gardens and bioswales
  • Pond and water feature margins
  • Naturally wet or boggy areas in your landscape
  • Native plant gardens focused on wetland species
  • Areas with poor drainage where other plants struggle

Wildlife Benefits

While leathery rush might seem like just a pretty face, it’s actually pulling its weight in the ecosystem. Small mammals use it as a minor food source, comprising about 5-10% of their diet. Though they don’t frequently use it for cover, every little bit helps when you’re trying to create habitat for native wildlife.

Growing Conditions and Care

Leathery rush is surprisingly low-maintenance once you understand its preferences. Here’s what it needs to thrive:

  • Moisture: Consistently moist to wet soil – this is non-negotiable
  • Light: Full sun to partial shade
  • Soil: Adaptable to various soil types as long as they stay moist
  • Hardiness: Thrives in USDA zones 6-9
  • Flooding tolerance: Can handle periodic flooding without missing a beat

Planting and Care Tips

Getting leathery rush established is straightforward if you follow these guidelines:

  • Plant in spring when soil temperatures are warming
  • Choose the wettest spot in your garden – seriously!
  • Keep soil consistently moist during establishment (which shouldn’t be hard given its preferred growing conditions)
  • Once established, it requires minimal maintenance
  • Be aware that it can spread by rhizomes, so give it room to naturalize
  • No fertilizer needed – it’s adapted to nutrient-poor wetland conditions

Design Ideas

Leathery rush brings wonderful textural contrast to wet garden areas. Its fine, upright form creates vertical interest and pairs beautifully with broader-leaved wetland plants like native sedges, cardinal flower, or blue flag iris. Use it to create naturalized drifts in rain gardens or as an accent plant around water features.

The Bottom Line

Leathery rush is an excellent choice for gardeners dealing with wet conditions who want to embrace native plants. Just remember to source it responsibly, especially if you’re in areas where it’s rare. When grown in the right conditions, this graceful rush will reward you with years of low-maintenance beauty while supporting local wildlife – a win-win for both you and your local ecosystem!

Leathery 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 coriaceus Mack. - leathery rush

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