North America Native Plant

Sedge

Botanical name: Carex ×neomiliaris

USDA symbol: CANE13

Life cycle: perennial

Habit: grass

Native status: Native to Canada  

Carex ×neomiliaris: A Mysterious Canadian Sedge Worth Knowing About If you’re a native plant enthusiast with a taste for the unusual, you might be curious about Carex ×neomiliaris, a perennial sedge native to Canada. But here’s the thing – this particular sedge is something of an enigma in the gardening ...

Carex ×neomiliaris: A Mysterious Canadian Sedge Worth Knowing About

If you’re a native plant enthusiast with a taste for the unusual, you might be curious about Carex ×neomiliaris, a perennial sedge native to Canada. But here’s the thing – this particular sedge is something of an enigma in the gardening world, and there’s a good reason why you probably haven’t seen it at your local nursery.

What Makes This Sedge Special (And Elusive)

Carex ×neomiliaris belongs to the sedge family (Cyperaceae), making it a graminoid – that’s botanist-speak for grass-like plant. The × in its name is a dead giveaway that this is a hybrid, which helps explain why information about it is surprisingly scarce. Like other sedges, it’s a perennial that forms part of the diverse world of grass-like plants that also includes true grasses, rushes, and other similar species.

Where You’ll Find This Native Sedge

This sedge calls Canada home, specifically growing in Ontario and Quebec. It’s a true northern native, adapted to the climate and conditions of these Canadian provinces.

The Challenge of Growing Carex ×neomiliaris

Here’s where things get tricky for eager gardeners: there’s remarkably little documented information about how to successfully grow this particular sedge. Unlike many of its well-known sedge cousins, Carex ×neomiliaris hasn’t made its way into mainstream horticulture, which means we don’t have reliable information about:

  • Preferred growing conditions
  • USDA hardiness zones
  • Specific care requirements
  • Propagation methods
  • Wildlife and pollinator benefits

Should You Try to Grow It?

The honest answer is that this sedge presents a significant challenge for home gardeners. Without established cultivation guidelines, growing Carex ×neomiliaris would be essentially experimental. If you’re determined to include native sedges in your garden, you might be better served by choosing well-documented alternatives.

Better-Known Native Sedge Alternatives

If you’re drawn to native sedges for your garden, consider these well-established options that offer the benefits of native plants with the advantage of proven cultivation methods:

  • Pennsylvania Sedge (Carex pensylvanica) – excellent for naturalizing
  • Plantain-leaved Sedge (Carex plantaginea) – great for shade gardens
  • Appalachian Sedge (Carex appalachica) – wonderful groundcover option

These alternatives will give you the ecological benefits and natural beauty of native sedges while being much more garden-friendly and reliable.

The Bottom Line

Carex ×neomiliaris represents one of those fascinating plants that reminds us how much we still don’t know about our native flora. While it’s undoubtedly an interesting species for plant enthusiasts to learn about, the lack of horticultural information makes it impractical for most gardening situations. Sometimes the most responsible approach is to appreciate a plant from afar while choosing better-documented natives for our gardens.

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 ×neomiliaris Lepage [aquatilis × saxatilis var. miliaris] - sedge

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