Native Plants

Island Schiedea

Schiedea hawaiiensis

USDA symbol: SCHA5

perennial vine

Hawaii: native

When it comes to Hawaiian native plants, few species capture the urgency of conservation quite like the island schiedea (Schiedea hawaiiensis). This delicate perennial herb represents both the unique beauty of Hawaii’s endemic flora and the critical challenges facing the islands’ native ecosystems. Island schiedea is a small herbaceous plant ...

Island Schiedea may be listed as rare in your area.
Global Conservation Status

Status: S1 | Critically imperiled: Typically 5 or fewer occurrences or under 1,000 remaining individuals.

United States

Status: Endangered | Endangered. In danger of extinction throughout all or a significant portion of its range.

Island Schiedea: Hawaii’s Critically Endangered Native Treasure

When it comes to Hawaiian native plants, few species capture the urgency of conservation quite like the island schiedea (Schiedea hawaiiensis). This delicate perennial herb represents both the unique beauty of Hawaii’s endemic flora and the critical challenges facing the islands’ native ecosystems.

What Makes Island Schiedea Special?

Island schiedea is a small herbaceous plant that belongs to the carnation family. As a forb herb, it lacks woody stems and instead produces soft, green growth that emerges from ground-level buds each growing season. This perennial creates delicate clusters of tiny white flowers that add a subtle charm to its native rocky habitats.

Where Does Island Schiedea Grow?

This remarkable plant is endemic to Hawaii, meaning it exists nowhere else on Earth. Island schiedea has adapted to thrive in the unique conditions found on Hawaiian cliffs and rocky outcroppings, where few other plants can survive.

  • Species observed
  • No observations

A Plant in Crisis: Understanding Its Endangered Status

Important Conservation Alert: Island schiedea is federally listed as Endangered and carries a Global Conservation Status of S1, meaning it’s critically imperiled. With typically five or fewer known populations and fewer than 1,000 individuals remaining in the wild, this species teeters on the brink of extinction.

This critical status means that island schiedea is absolutely not suitable for home gardening, even for the most dedicated native plant enthusiasts.

Why You Shouldn’t (and Can’t) Grow Island Schiedea

Here’s why this beautiful native isn’t destined for your garden:

  • Legal protection: As a federally endangered species, collecting or disturbing wild populations is prohibited
  • Extreme rarity: Seeds and plants are not commercially available
  • Specialized habitat needs: Requires very specific rocky cliff conditions that are nearly impossible to replicate
  • Conservation priority: All efforts focus on protecting existing wild populations

Supporting Island Schiedea Conservation

While you can’t grow island schiedea in your garden, you can still support its survival:

  • Donate to Hawaiian native plant conservation organizations
  • Support habitat protection efforts in Hawaii
  • Choose other Hawaiian native plants for your garden that aren’t endangered
  • Spread awareness about Hawaii’s unique and threatened flora

Hawaiian Native Alternatives for Your Garden

If you’re inspired by Hawaii’s native flora, consider these more garden-appropriate alternatives:

  • Native Hawaiian hibiscus species (where climate permits)
  • Hawaiian native ferns for shaded areas
  • Indigenous grasses suitable for your region
  • Other non-endangered Hawaiian natives available through specialty nurseries

The Bigger Picture

Island schiedea serves as a powerful reminder of how precious and fragile our native ecosystems can be. While we can’t invite this particular species into our gardens, we can honor its existence by becoming better stewards of the native plants in our own regions and supporting conservation efforts wherever possible.

Sometimes the most meaningful way to appreciate a plant is to ensure it continues to thrive in its natural habitat, even if that means admiring it from afar.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Caryophyllidae
Order: Caryophyllales
Family: Caryophyllaceae Juss. - Pink family
Genus: Schiedea Cham. & Schltdl. - schiedea

Species: Schiedea hawaiiensis Hillebr. - island schiedea

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