North America Native Plant

Delta Bulrush

Botanical name: Schoenoplectus deltarum

USDA symbol: SCDE6

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Scirpus deltarum Schuyler (SCDE2)   

Delta Bulrush: A Native Wetland Wonder for Your Garden If you’ve been searching for a native plant that thrives in those perpetually soggy spots in your yard, meet the delta bulrush (Schoenoplectus deltarum). This unassuming but incredibly useful sedge might just be the perfect solution for your wet garden woes ...

Rare plant alert!

Region: Conservation status by state

Status: S3S4: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Delta Bulrush: A Native Wetland Wonder for Your Garden

If you’ve been searching for a native plant that thrives in those perpetually soggy spots in your yard, meet the delta bulrush (Schoenoplectus deltarum). This unassuming but incredibly useful sedge might just be the perfect solution for your wet garden woes – and a fantastic addition to your local ecosystem.

What is Delta Bulrush?

Delta bulrush is a perennial sedge that belongs to the grass-like family of plants. Don’t let the bulrush name fool you – this isn’t actually a rush at all, but rather a member of the sedge family (Cyperaceae). Like other sedges, it has triangular stems (remember: sedges have edges!) and produces distinctive umbrella-like clusters of tiny flowers.

You might also find this plant listed under its former scientific name, Scirpus deltarum, in older gardening resources.

Where Does Delta Bulrush Call Home?

This native beauty is truly American-born, naturally occurring across the south-central and southeastern United States. You’ll find wild populations flourishing in Alabama, Florida, Illinois, Kansas, Louisiana, Mississippi, Missouri, and Texas.

A Plant Worth Protecting

Here’s something important to know: delta bulrush has a conservation status of S3S4, which means it’s somewhat uncommon to fairly common in its range but still worth protecting. If you’re considering adding this plant to your garden, make sure to source it from reputable native plant nurseries that propagate their own stock rather than wild-collecting.

Why Your Garden (and Local Wildlife) Will Love Delta Bulrush

Delta bulrush isn’t just a pretty face – it’s a wetland workhorse that offers multiple benefits:

  • Natural water filter: Like other wetland sedges, it helps filter runoff and improve water quality
  • Erosion control: Its root system helps stabilize soil around water features
  • Wildlife habitat: Provides structure and cover for wetland creatures
  • Low maintenance: Once established, it pretty much takes care of itself
  • Authentic native landscaping: Perfect for creating genuine local ecosystems

Perfect Garden Spots for Delta Bulrush

This sedge is incredibly versatile when it comes to wet gardening applications:

  • Rain gardens: Excellent for managing stormwater runoff
  • Pond edges: Creates natural-looking transitions between water and land
  • Bog gardens: Thrives in consistently wet conditions
  • Wetland restoration projects: Essential for recreating natural wetland communities
  • Wildlife habitats: Provides authentic native plant communities

Growing Conditions: Keep It Wet!

The key to success with delta bulrush is understanding its water needs. This plant has different wetland requirements depending on where you’re gardening:

  • In the Great Plains and Midwest regions, it’s an obligate wetland plant – meaning it almost always needs wet conditions
  • In Atlantic and Gulf Coastal Plains and Eastern Mountains regions, it’s more flexible as a facultative wetland plant

Ideal growing conditions include:

  • Light: Full sun to partial shade
  • Soil: Consistently moist to wet, can handle periodic flooding
  • USDA Zones: 6-10
  • pH: Adaptable to various pH levels typical of wetland soils

Planting and Care Tips

The good news? Delta bulrush is refreshingly low-maintenance once you get it established:

  • Planting: Spring is ideal, though container-grown plants can be planted throughout the growing season
  • Spacing: Allow adequate room for clumping growth
  • Watering: Keep soil consistently moist to wet – this plant doesn’t like to dry out
  • Fertilizing: Generally unnecessary in appropriate wetland conditions
  • Maintenance: Minimal pruning needed; cut back in late winter if desired

Is Delta Bulrush Right for Your Garden?

Delta bulrush is perfect for you if:

  • You have wet areas that need landscaping solutions
  • You’re creating rain gardens or water features
  • You want to support native plant conservation
  • You prefer low-maintenance, authentic native landscapes
  • You’re working on wetland restoration projects

However, skip this plant if you’re looking for something for dry, upland areas – delta bulrush simply won’t be happy without adequate moisture.

The Bottom Line

Delta bulrush might not win any flashy flower contests, but it’s an unsung hero of the native plant world. For gardeners dealing with wet conditions, it offers an authentic, low-maintenance solution that supports local ecosystems while solving practical landscaping challenges. Plus, by growing this somewhat uncommon native, you’re contributing to its conservation – and that’s something every gardener can feel good about.

Ready to embrace the wonderful world of native wetland gardening? Delta bulrush is waiting to show you just how beautiful functional can be.

Delta Bulrush

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

Cyperaceae Juss. - Sedge family

Genus

Schoenoplectus (Rchb.) Palla - bulrush

Species

Schoenoplectus deltarum (Schuyler) Soják - delta bulrush

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