North America Native Plant

Fourangle Rose Gentian

Botanical name: Sabatia quadrangula

USDA symbol: SAQU

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Sabatia paniculata auct. non (Michx.) Pursh (SAPA22)   

Fourangle Rose Gentian: A Rare Southeastern Native Worth Protecting If you’re drawn to delicate wildflowers with a touch of rarity, the fourangle rose gentian (Sabatia quadrangula) might just capture your gardening heart. This charming native forb brings a subtle elegance to southeastern gardens while supporting local ecosystems—though its scarcity means ...

Rare plant alert!

Region: Alabama

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

Fourangle Rose Gentian: A Rare Southeastern Native Worth Protecting

If you’re drawn to delicate wildflowers with a touch of rarity, the fourangle rose gentian (Sabatia quadrangula) might just capture your gardening heart. This charming native forb brings a subtle elegance to southeastern gardens while supporting local ecosystems—though its scarcity means we need to be thoughtful about how we grow it.

What Makes Fourangle Rose Gentian Special

Don’t let the fancy name fool you—this little beauty is all about understated charm. The fourangle rose gentian produces small, four-petaled flowers that range from soft pink to pristine white, each adorned with a cheerful yellow center. As an annual or biennial forb, it completes its life cycle relatively quickly, making every bloom season feel like a special event.

The plant gets its fourangle name from its distinctive square stems, a quirky botanical feature that sets it apart from its gentian relatives. Unlike woody plants, this forb lacks significant woody tissue and keeps its growing points at or below ground level—nature’s way of helping it survive harsh conditions.

Where It Calls Home

Fourangle rose gentian is native to the southeastern United States, naturally occurring across Alabama, Florida, Georgia, North Carolina, South Carolina, and Virginia. This plant has adapted beautifully to the region’s coastal plains and piedmont areas, where it thrives in the humid, warm climate.

A Word of Caution: Rarity Matters

Here’s where things get serious for a moment. In Alabama, fourangle rose gentian holds a rarity status of SH (Critically Imperiled), meaning it’s extremely rare and vulnerable to extinction in that state. If you’re considering adding this plant to your garden, please ensure you source it responsibly from reputable native plant nurseries or seed suppliers—never collect from wild populations.

Garden Role and Design Ideas

This delicate wildflower shines in naturalized settings where it can mingle with other native plants. Consider incorporating fourangle rose gentian into:

  • Native wildflower meadows
  • Rain gardens and bioswales
  • Bog gardens or wet areas
  • Naturalized pond margins
  • Wildlife habitat gardens

Its modest size and delicate appearance make it perfect for close-up viewing along pathways or in smaller garden spaces where its subtle beauty won’t get lost among showier plants.

Growing Conditions and Care

Fourangle rose gentian has specific preferences that reflect its natural habitat. In wetland areas, it functions as a facultative wetland plant in the Atlantic and Gulf Coastal Plain region, meaning it usually occurs in wetlands but can tolerate drier conditions. In the Eastern Mountains and Piedmont region, it’s more flexible, occurring in both wet and dry areas.

For successful cultivation, provide:

  • Moisture: Consistently moist to wet soil conditions
  • Sunlight: Full sun to partial shade
  • Soil: Acidic, well-draining soil that retains moisture
  • Climate: USDA hardiness zones 7-9

Planting and Maintenance Tips

Since fourangle rose gentian is typically grown from seed, timing is everything. Sow seeds in late fall or early spring, allowing natural temperature fluctuations to trigger germination. The plant requires minimal maintenance once established, though consistent moisture is crucial during dry periods.

As an annual or biennial, don’t be surprised if your plants don’t return every year—this is perfectly normal! Allow some flowers to go to seed to encourage natural reseeding in your garden.

Supporting Pollinators and Wildlife

Those charming little flowers aren’t just pretty to look at—they serve as important nectar sources for butterflies, native bees, and other small pollinators. By growing fourangle rose gentian, you’re contributing to the local pollinator network while preserving a piece of southeastern botanical heritage.

The Bottom Line

Fourangle rose gentian offers southeastern gardeners a chance to grow something truly special—a native wildflower that’s both beautiful and ecologically valuable. While its rarity status means we must be responsible stewards, growing this plant from ethically sourced material helps preserve genetic diversity and supports conservation efforts.

If you’re passionate about native plants and don’t mind a bit of unpredictability in your garden, fourangle rose gentian might be the perfect addition to your landscape. Just remember: with great beauty comes great responsibility—always source responsibly!

Fourangle Rose Gentian

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Gentianales

Family

Gentianaceae Juss. - Gentian family

Genus

Sabatia Adans. - rose gentian

Species

Sabatia quadrangula Wilbur - fourangle rose gentian

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