North America Native Plant

Grant’s Sedge

Botanical name: Carex ×grantii

USDA symbol: CAGR40

Life cycle: perennial

Habit: grass

Native status: Native to Canada  

Synonyms: Carex ×nubens Lepage (CANU19)   

Grant’s Sedge: A Rare Canadian Native Worth Knowing About If you’re passionate about native Canadian plants, you might have stumbled across the name Grant’s sedge in your botanical adventures. This intriguing sedge has a story that’s both fascinating and a bit mysterious, making it one of those plants that catches ...

Grant’s Sedge: A Rare Canadian Native Worth Knowing About

If you’re passionate about native Canadian plants, you might have stumbled across the name Grant’s sedge in your botanical adventures. This intriguing sedge has a story that’s both fascinating and a bit mysterious, making it one of those plants that catches the attention of serious native plant enthusiasts.

What Exactly is Grant’s Sedge?

Grant’s sedge (Carex ×grantii) is a perennial sedge native to eastern Canada. The × in its scientific name is your first clue that this isn’t your typical garden-variety plant – it indicates that this is a natural hybrid. Like other sedges, it’s a grass-like plant that belongs to the sedge family, giving it that distinctive narrow-leaved appearance that makes sedges so valuable in naturalistic plantings.

You might occasionally see it listed under its synonym, Carex ×nubens, but Grant’s sedge is the name that’s stuck in most botanical circles.

Where Does Grant’s Sedge Call Home?

This native Canadian sedge has a pretty specific address – you’ll find it naturally occurring in Ontario and Quebec. Its range reflects the plant’s preference for the climate and growing conditions found in these eastern Canadian provinces.

Should You Try Growing Grant’s Sedge?

Here’s where things get interesting – and a bit challenging. As a hybrid species, Grant’s sedge is quite rare and not commonly available in the horticultural trade. This presents a few important considerations:

  • Limited availability makes it nearly impossible to find at regular nurseries
  • Its hybrid nature means it may not reproduce reliably from seed
  • Very little cultivation information exists for home gardeners
  • It’s likely suited for USDA hardiness zones 3-6, based on its native range

What We Know About Growing Conditions

While specific cultivation details for Grant’s sedge are scarce, we can make some educated guesses based on its sedge family characteristics and native habitat:

  • Likely prefers consistently moist soil conditions
  • Probably tolerates partial shade to full sun
  • Would fit well in naturalistic or native plant gardens
  • Best suited for gardeners in similar climate zones to its native range

The Reality Check

If you’re hoping to add Grant’s sedge to your garden, you’ll face some significant hurdles. Its rarity and hybrid status make it more of a botanical curiosity than a practical garden choice. Even if you could locate plants or seeds, there’s limited guidance on successful cultivation.

Better Alternatives for Your Native Garden

Instead of chasing after this elusive hybrid, consider these more readily available native sedges that can give you similar aesthetic appeal:

  • Pennsylvania sedge (Carex pensylvanica) – excellent for dry shade
  • Bladder sedge (Carex intumescens) – great for wet areas
  • Fox sedge (Carex vulpinoidea) – adaptable and easy to grow

The Bottom Line

Grant’s sedge represents the fascinating diversity of Canada’s native flora, but it’s more of a look but don’t touch kind of plant for most gardeners. While it’s certainly not invasive or problematic, its rarity and limited availability make it an impractical choice for home landscapes. If you’re passionate about supporting native biodiversity, focus on the many other beautiful and available native sedges that can provide similar ecological benefits without the frustration of trying to source an elusive hybrid.

Sometimes the most responsible thing we can do as native plant gardeners is appreciate rare species like Grant’s sedge in their natural habitats while choosing more readily available natives for our home landscapes.

Grant’s 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 ×grantii A. Benn. [aquatilis × recta] - Grant's sedge

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