North America Native Plant

Little Green Sedge

Botanical name: Carex viridula viridula

USDA symbol: CAVIV

Life cycle: perennial

Habit: grass

Native status: Native to Alaska âš˜ Native to Canada âš˜ Native to Greenland âš˜ Native to the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Synonyms: Carex oederi Ehrh., nom. illeg. (CAOE)  âš˜  Carex oederi Retz. var. recterostrata (Vict.) Dorn (CAOER)  âš˜  Carex oederi Retz. ssp. viridula (Michx.) Hultén (CAOEV)  âš˜  Carex serotina Mérat (CASE23)  âš˜  Carex viridula Michx. var. viridula (CAVIV2)   

Little Green Sedge: A Charming Native for Wet Gardens If you’re looking for a petite, well-behaved native plant that thrives in those tricky wet spots in your garden, let me introduce you to little green sedge (Carex viridula viridula). This delightful little sedge might not win any height contests, but ...

Rare plant alert!

Region: New Jersey

Status: Highlands Listed, S2: New Jersey Highlands region ⚘ Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Little Green Sedge: A Charming Native for Wet Gardens

If you’re looking for a petite, well-behaved native plant that thrives in those tricky wet spots in your garden, let me introduce you to little green sedge (Carex viridula viridula). This delightful little sedge might not win any height contests, but what it lacks in stature, it makes up for in charm and adaptability.

What Makes Little Green Sedge Special?

Little green sedge is a perennial sedge that forms neat, compact clumps of bright green, grass-like foliage. Don’t let its modest appearance fool you – this tough little plant has been quietly thriving across North America for centuries, and it’s ready to bring that same resilience to your garden.

As its common name suggests, this sedge maintains a lovely green color throughout much of the growing season, creating a fresh, vibrant appearance that can brighten up even the dampest corners of your landscape.

Where Does It Come From?

Little green sedge boasts an impressive native range that spans across Alaska, Canada, Greenland, and much of the continental United States. You can find this adaptable sedge growing naturally from coast to coast, thriving in locations as diverse as Alberta and California, Maine and Montana, and everywhere in between. Its extensive distribution includes most Canadian provinces and territories, plus states ranging from the Pacific Northwest to New England.

This wide distribution is a testament to the plant’s remarkable adaptability – if it can handle the climate extremes from Alaska to New Mexico, it can probably handle whatever your garden throws at it!

A Conservation Note

Before we dive into growing tips, it’s worth noting that little green sedge has a rarity status of S2 (imperiled) in New Jersey, where it’s listed as a Highlands species of concern. If you live in areas where this plant is rare, please source your plants responsibly from reputable native plant nurseries rather than collecting from wild populations. By growing it in your garden, you’re actually helping support conservation efforts!

Why Grow Little Green Sedge?

Here’s why this unassuming sedge deserves a spot in your native plant garden:

  • Perfect for challenging wet areas where other plants struggle
  • Low-maintenance once established
  • Provides texture and ground cover in naturalistic designs
  • Excellent for rain gardens and bioswales
  • Supports native ecosystems and wildlife habitat
  • Extremely hardy (zones 2-7)

Where to Use It in Your Landscape

Little green sedge shines in several garden situations:

  • Rain gardens: Its love of moisture makes it ideal for managing stormwater runoff
  • Bog or water gardens: Plant it along pond edges or in consistently moist areas
  • Naturalistic landscapes: Use it to create authentic-looking meadow or wetland plantings
  • Restoration projects: Perfect for restoring degraded wetland areas
  • Ground cover: Creates attractive, low-maintenance carpets in appropriate conditions

Growing Conditions

Little green sedge is refreshingly straightforward to grow if you can meet its basic needs:

  • Moisture: Prefers consistently moist to wet soils – think of it as nature’s solution for those soggy spots
  • Light: Grows well in full sun to partial shade
  • Soil: Tolerates a wide range of soil types, including poor or sandy soils, as long as moisture is adequate
  • Hardiness: Extremely cold-tolerant, suitable for USDA zones 2-7

Planting and Care Tips

Getting little green sedge established is relatively simple:

  • Timing: Plant in spring or early fall when temperatures are moderate
  • Spacing: Space plants 12-18 inches apart for ground cover effect
  • Watering: Keep consistently moist, especially during establishment
  • Maintenance: Very low-maintenance once established – simply cut back old foliage in late winter if desired
  • Propagation: Divide established clumps in spring or fall to create new plants

Wildlife and Ecological Benefits

While little green sedge is wind-pollinated and doesn’t directly attract pollinators like flowering plants do, it still provides valuable ecological benefits. Sedges create important habitat for various insects and small wildlife, contribute to soil stabilization, and play a crucial role in healthy wetland ecosystems.

The Bottom Line

Little green sedge might not be the flashiest plant in your garden, but it’s certainly one of the most reliable. If you have challenging wet areas that need a native solution, or if you’re passionate about supporting native plant conservation, this charming sedge deserves serious consideration. Its combination of adaptability, low maintenance needs, and ecological value makes it a winner for gardeners who appreciate plants that work hard without asking for much in return.

Remember to source your plants responsibly, especially if you live in areas where this species is rare. With proper care and the right conditions, little green sedge can be a long-term, low-maintenance addition to your native plant palette.

Little Green 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 viridula Michx. - little green sedge

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