North America Native Plant

Spearbract Blue-eyed Grass

Botanical name: Sisyrinchium sagittiferum

USDA symbol: SISA3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Spearbract Blue-Eyed Grass: A Hidden Gem for Wet Gardens If you’re looking for a native plant that thrives in those soggy spots where other perennials fear to tread, meet spearbract blue-eyed grass (Sisyrinchium sagittiferum). This charming little perennial might not be the showiest plant in your garden, but it’s got ...

Rare plant alert!

Region: Arkansas

Status: SH: Status is uncertain but is somewhere between the following rankings: Possibly Extinct: Known only from historical occurrences. Still some hope of rediscovery ⚘

Spearbract Blue-Eyed Grass: A Hidden Gem for Wet Gardens

If you’re looking for a native plant that thrives in those soggy spots where other perennials fear to tread, meet spearbract blue-eyed grass (Sisyrinchium sagittiferum). This charming little perennial might not be the showiest plant in your garden, but it’s got a quiet beauty and ecological value that makes it worth considering – if you can find it responsibly sourced.

What Is Spearbract Blue-Eyed Grass?

Despite its name, spearbract blue-eyed grass isn’t actually a grass at all! It’s a member of the iris family, sporting delicate blue to purple flowers and slender, grass-like leaves that form neat little clumps. This native forb is a true perennial, meaning it’ll come back year after year once established, making it a reliable addition to your landscape.

As a forb, this plant lacks woody tissue and keeps its growing points at or below ground level – perfect for surviving tough weather and seasonal flooding that would doom other plants.

Where Does It Call Home?

Spearbract blue-eyed grass is native to a relatively small slice of the south-central United States, naturally occurring in Arkansas, Louisiana, and Texas. This limited range makes it a special find for gardeners in these areas who want to support truly local biodiversity.

A Word About Rarity

Here’s something important to know: in Arkansas, this species has a rarity status of SH (Historically known), which means it’s become quite uncommon in the wild. If you’re considering adding this plant to your garden, please make sure you source it from reputable native plant nurseries that propagate their own stock rather than wild-collecting. Never harvest this plant from the wild!

Perfect for Wet Spots

One of the best things about spearbract blue-eyed grass is its love for moisture. Depending on your region, it has different wetland preferences:

  • In the Atlantic and Gulf Coastal Plain: Facultative (happy in wet or dry spots)
  • In the Eastern Mountains and Piedmont: Facultative Wetland (prefers wet but tolerates some dryness)
  • In the Great Plains: Facultative Wetland (prefers wet conditions)

This flexibility makes it perfect for rain gardens, the edges of ponds, or those perpetually soggy areas where you’ve struggled to establish other plants.

Garden Design Ideas

Think of spearbract blue-eyed grass as nature’s gentle ground cover. It works beautifully:

  • Naturalized in bog gardens or wet meadows
  • As a delicate accent in rain gardens
  • Mixed with other native wetland plants for a natural look
  • In areas that experience seasonal flooding

Its grass-like appearance provides wonderful textural contrast when planted alongside broader-leaved wetland natives.

Growing Conditions

This adaptable native thrives in USDA hardiness zones 7-9, making it suitable for much of the southeastern and south-central United States. It prefers:

  • Moist to wet soils
  • Full sun to partial shade
  • Areas that can handle seasonal flooding
  • Low-maintenance growing conditions

Planting and Care Tips

Once established, spearbract blue-eyed grass is refreshingly low-maintenance. Here’s how to give it the best start:

  • Plant in spring or fall for best establishment
  • Ensure consistent moisture, especially during the first growing season
  • Mulch lightly to retain moisture and suppress weeds
  • Allow natural self-seeding in appropriate garden areas
  • Divide clumps every few years if desired for propagation

Supporting Wildlife

While spearbract blue-eyed grass might look delicate, it plays an important role in supporting local ecosystems. Its small flowers attract native pollinators, particularly smaller native bees and other beneficial insects that might overlook showier blooms. As a native plant, it’s also likely to support local wildlife in ways that non-native alternatives simply can’t match.

The Bottom Line

Spearbract blue-eyed grass might not be the star of your garden show, but it’s definitely worth considering if you have wet areas to fill and want to support native biodiversity. Its quiet charm, low-maintenance nature, and ecological value make it a smart choice for naturalistic gardens. Just remember to source it responsibly – with its rarity status in Arkansas, every garden population helps preserve this special native for future generations.

If you can’t locate spearbract blue-eyed grass from ethical sources, consider other native Sisyrinchium species or wetland natives that are more commonly available in your area. Your local native plant society can be an excellent resource for both finding rare plants and learning about suitable alternatives.

Spearbract Blue-eyed Grass

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Liliidae

Order

Liliales

Family

Iridaceae Juss. - Iris family

Genus

Sisyrinchium L. - blue-eyed grass

Species

Sisyrinchium sagittiferum E.P. Bicknell - spearbract blue-eyed grass

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