North America Native Plant

Squarrose Sedge

Botanical name: Carex squarrosa

USDA symbol: CASQ2

Life cycle: perennial

Habit: grass

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

Squarrose Sedge: A Native Wetland Wonder for Your Garden Looking for a native plant that can handle wet feet and still look graceful in your landscape? Meet the squarrose sedge (Carex squarrosa), a charming perennial that’s perfectly at home in those soggy spots where other plants fear to tread. This ...

Squarrose Sedge: A Native Wetland Wonder for Your Garden

Looking for a native plant that can handle wet feet and still look graceful in your landscape? Meet the squarrose sedge (Carex squarrosa), a charming perennial that’s perfectly at home in those soggy spots where other plants fear to tread. This unassuming grass-like beauty might just be the solution you’ve been searching for!

What Makes Squarrose Sedge Special?

Squarrose sedge is a true native gem, naturally occurring across a vast swath of North America from Canada down through the eastern and central United States. You’ll find this adaptable sedge thriving in states stretching from Maine to Louisiana and from the Atlantic coast west to Kansas and Nebraska – that’s a pretty impressive native range!

This perennial sedge forms neat, upright clumps that reach about 3 feet tall, creating an elegant fountain-like appearance with its fine-textured green foliage. While it may not win any awards for flashy flowers (they’re small and green), its subtle beauty lies in its graceful form and reliable performance season after season.

Why Your Garden Will Love Squarrose Sedge

Here’s where squarrose sedge really shines – it’s practically tailor-made for those challenging wet areas in your landscape. Whether you’re dealing with:

  • Rain gardens that need reliable plants
  • Pond or stream edges
  • Low-lying areas that stay moist
  • Naturalized wetland gardens
  • Shaded wet spots where grass won’t grow

This sedge has you covered! It’s incredibly tolerant of waterlogged conditions, earning it Obligate Wetland status in northern regions, meaning it almost always occurs in wetlands. In southern areas, it’s slightly more flexible as a Facultative Wetland plant.

Growing Conditions That Make Squarrose Sedge Happy

The beauty of native plants is that they’re already adapted to your local conditions, and squarrose sedge is no exception. Here’s what it prefers:

  • Moisture: Medium to high – this plant loves consistently moist to wet soil
  • Soil: Medium to fine textured soils work best
  • Light: Shade tolerant, making it perfect for woodland edges
  • pH: Slightly acidic to neutral (5.6-7.3)
  • Hardiness: Cold hardy to about -28°F (roughly zones 5-9)

One thing to keep in mind: this sedge has zero drought tolerance, so don’t expect it to thrive in dry conditions. It’s all about that moisture-loving lifestyle!

Planting and Care Tips

Good news for busy gardeners – squarrose sedge is refreshingly low-maintenance once established. Here’s how to get started:

Planting: You can propagate this sedge from seed, bare root plants, or sprigs. It blooms in mid-spring and produces seeds through summer, though seed abundance is typically low. The plant has a slow growth rate, so patience is key during establishment.

Spacing: Plan for about 2,700 to 4,800 plants per acre if you’re doing large-scale plantings, which translates to roughly 2-3 feet apart for garden use.

Ongoing care: Once established, this sedge is remarkably self-sufficient. Its slow vegetative spread means it won’t become aggressive, and it requires minimal fertilization (medium fertility needs). The fine foliage provides moderate porosity in summer and becomes more porous in winter.

The Bigger Picture: Supporting Native Ecosystems

By choosing native plants like squarrose sedge, you’re not just solving a landscaping challenge – you’re supporting local ecosystems. Native sedges provide important habitat and food sources for wildlife, and their root systems help prevent erosion in wet areas. Plus, they require no fertilizers or pesticides once established, making them an environmentally friendly choice.

Is Squarrose Sedge Right for Your Garden?

If you have consistently moist to wet areas in your landscape and want a low-maintenance native plant that provides year-round structure, squarrose sedge could be perfect. It’s especially valuable in:

  • Rain gardens and bioswales
  • Native plant gardens
  • Pond and water feature edges
  • Shaded wet areas
  • Naturalized landscapes

Just remember that this isn’t the plant for dry, sunny borders or formal flower beds. It’s all about embracing those wet, wild spaces and turning them into beautiful, functional parts of your landscape.

So next time you’re staring at that soggy spot in your yard wondering what on earth will grow there, consider giving squarrose sedge a try. This native beauty might just surprise you with its quiet elegance and rock-solid reliability!

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

FACW

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

Eastern Mountains and Piedmont

FACW

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

Great Plains

FACW

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

Midwest

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Northcentral & Northeast

OBL

Obligate Wetland - Plants with this status almost always occurs in wetlands

Squarrose Sedge

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

Carex L. - sedge

Species

Carex squarrosa L. - squarrose sedge

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