North America Native Plant

Santa Cruz Sedge

Botanical name: Carex saliniformis

USDA symbol: CASA6

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Santa Cruz Sedge: A Rare Coastal California Native Worth Protecting Meet the Santa Cruz sedge (Carex saliniformis), a charming yet increasingly rare native plant that calls the coastal regions of California home. This unassuming perennial sedge might not win any flashy flower contests, but it plays a crucial role in ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: 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) ⚘

Santa Cruz Sedge: A Rare Coastal California Native Worth Protecting

Meet the Santa Cruz sedge (Carex saliniformis), a charming yet increasingly rare native plant that calls the coastal regions of California home. This unassuming perennial sedge might not win any flashy flower contests, but it plays a crucial role in California’s native ecosystems and deserves a spot in conservation-minded gardens.

Where You’ll Find Santa Cruz Sedge

This special sedge is endemic to California, with its heart centered around the Santa Cruz area along the coast. As a true California native, it has adapted perfectly to the unique conditions of our coastal wetlands and seasonal moisture patterns.

Why This Plant Matters (And Why You Should Care)

Here’s the important part: Santa Cruz sedge has a Global Conservation Status of S2, meaning it’s considered imperiled. With typically only 6 to 20 occurrences remaining and few individuals left in the wild (estimated 1,000 to 3,000), this plant is hanging on by a thread. That makes every garden specimen potentially valuable for conservation efforts.

Important note: If you’re interested in growing Santa Cruz sedge, please only source plants or seeds from reputable native plant nurseries that use responsibly collected material. Never collect from wild populations.

What Does It Look Like?

Santa Cruz sedge is a classic example of understated elegance. As a member of the sedge family, it forms clumps of narrow, grass-like leaves that arch gracefully. While it won’t provide showy blooms like a poppy or lupine, its subtle texture and form add valuable structure to native plant compositions.

Growing Conditions and Care

The good news? Once you understand its preferences, Santa Cruz sedge is relatively low-maintenance. Here’s what it needs to thrive:

  • Moisture: This sedge has facultative wetland status, meaning it usually occurs in wetlands but can tolerate drier conditions. It prefers consistent moisture and can handle seasonal flooding
  • Light: Full sun to partial shade work well
  • Climate: Suited for USDA hardiness zones 9-10, matching California’s coastal climate
  • Soil: Adapts to various soil types but prefers moist, well-draining conditions

Perfect Garden Situations

Santa Cruz sedge shines in several garden scenarios:

  • Native California plant gardens
  • Rain gardens and bioswales
  • Wetland restoration projects
  • Water-wise landscapes with seasonal moisture
  • Habitat gardens supporting local ecosystems

Wildlife and Ecosystem Benefits

While sedges are primarily wind-pollinated and don’t attract butterflies like showy wildflowers, they serve important ecological functions. They provide habitat structure, help prevent erosion, and support various insects and small wildlife that depend on native plant communities.

The Bottom Line

Should you plant Santa Cruz sedge? If you live in coastal California and want to support conservation efforts, absolutely—but only if you can source it responsibly. This rare native deserves our protection and thoughtful cultivation. By growing it in appropriate garden settings, you’re not just adding a unique plant to your landscape; you’re participating in preserving a piece of California’s natural heritage.

Remember, every rare native plant grown in gardens is a small victory for biodiversity. Santa Cruz sedge may be subtle, but its conservation value is anything but small.

Santa Cruz 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 saliniformis Mack. - Santa Cruz sedge

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