North America Native Plant

Capillary Hairsedge

Botanical name: Bulbostylis ciliatifolia

USDA symbol: BUCI

Life cycle: annual

Habit: grass

Native status: Native to the lower 48 states  

Capillary Hairsedge: A Delicate Native Sedge for Southeastern Gardens Looking for a low-maintenance native plant that adds subtle texture to your garden? Meet capillary hairsedge (Bulbostylis ciliatifolia), a charming little sedge that’s perfectly at home in the American Southeast. While it might not be the showiest plant in your garden, ...

Capillary Hairsedge: A Delicate Native Sedge for Southeastern Gardens

Looking for a low-maintenance native plant that adds subtle texture to your garden? Meet capillary hairsedge (Bulbostylis ciliatifolia), a charming little sedge that’s perfectly at home in the American Southeast. While it might not be the showiest plant in your garden, this delicate annual brings its own quiet appeal to naturalistic landscapes.

What Is Capillary Hairsedge?

Capillary hairsedge is a native annual sedge that’s as delicate as its name suggests. True to its common name, this plant produces fine, hair-like leaves that create a soft, textural presence in the garden. As an annual, it completes its entire life cycle in one growing season, making it a reliable self-seeder for those who appreciate plants that know how to take care of themselves.

Where Does It Grow Naturally?

This southeastern native calls twelve states home: Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, and Virginia. Throughout this range, you’ll find it thriving in various habitats, from coastal plains to piedmont regions.

Garden Appeal and Landscape Role

Don’t expect capillary hairsedge to steal the show with flashy blooms – its charm lies in subtlety. The plant produces small brown flower clusters that may not wow from a distance but add interesting texture up close. Its real value comes from its fine foliage and its role as a reliable ground cover in naturalistic plantings.

This sedge works wonderfully in:

  • Native plant gardens
  • Rain gardens and bioswales
  • Naturalized meadow areas
  • Erosion control plantings
  • Transitional zones between formal and wild garden areas

Growing Conditions and Care

One of capillary hairsedge’s best qualities is its adaptability. This plant can handle both wetland and upland conditions, making it suitable for USDA hardiness zones 7-10. It performs well in full sun to partial shade and isn’t particularly fussy about soil type, though it does appreciate consistent moisture.

The plant’s wetland status varies by region:

  • Atlantic and Gulf Coastal Plain: Can grow in both wet and dry conditions
  • Eastern Mountains and Piedmont: Usually prefers drier sites but tolerates some moisture
  • Great Plains: Adaptable to wet or dry conditions

Planting and Maintenance Tips

Here’s the beauty of working with capillary hairsedge – it’s refreshingly low-maintenance:

  • Plant seeds in spring after the last frost
  • Provide consistent moisture during establishment
  • Once established, it tolerates some drought but performs best with regular water
  • No fertilization needed – it’s adapted to natural soil conditions
  • Allow plants to self-seed for natural colonies
  • Minimal pruning required – let it complete its natural cycle

Wildlife and Ecological Benefits

While capillary hairsedge may not be a major pollinator magnet (it’s wind-pollinated, after all), it still contributes to the ecosystem. The seeds provide food for birds, and the plant offers habitat for small insects and other tiny creatures that call native grasslands home.

Is Capillary Hairsedge Right for Your Garden?

Consider adding capillary hairsedge if you:

  • Want to support native ecosystems
  • Appreciate subtle, naturalistic beauty
  • Need ground cover for challenging areas
  • Prefer low-maintenance plants
  • Are creating habitat for wildlife

However, you might want to look elsewhere if you’re seeking:

  • Bold, colorful flowers
  • Perennial structure
  • Formal garden specimens
  • Major pollinator plants

Capillary hairsedge proves that not every garden star needs to be flashy. Sometimes the most valuable players are the quiet ones that simply do their job well, year after year, supporting the broader ecosystem while asking for very little in return. For gardeners in the Southeast looking to incorporate more native species, this delicate sedge offers an easy entry point into the wonderful world of native sedges.

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

Capillary Hairsedge

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

Bulbostylis Kunth - hairsedge

Species

Bulbostylis ciliatifolia (Elliott) Fernald - capillary hairsedge

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