North America Native Plant

Redmargin Zephyrlily

Botanical name: Zephyranthes simpsonii

USDA symbol: ZESI

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Atamosco simpsonii (Chapm.) Greene (ATSI)   

Redmargin Zephyrlily: A Rare Native Gem for Your Garden If you’re looking to add a touch of delicate beauty to your native plant garden, the redmargin zephyrlily (Zephyranthes simpsonii) might just be the hidden treasure you’ve been searching for. This charming little native bulb brings subtle elegance and authentic regional ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: 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) ⚘ Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Redmargin Zephyrlily: A Rare Native Gem for Your Garden

If you’re looking to add a touch of delicate beauty to your native plant garden, the redmargin zephyrlily (Zephyranthes simpsonii) might just be the hidden treasure you’ve been searching for. This charming little native bulb brings subtle elegance and authentic regional character to southeastern gardens, though it comes with some important considerations for responsible gardeners.

What Makes the Redmargin Zephyrlily Special

The redmargin zephyrlily is a perennial flowering bulb native to the southeastern United States. As its common name suggests, this plant produces lovely funnel-shaped flowers that are white to pale pink with distinctive reddish margins along the petal edges. The flowers appear almost magically after rain showers, earning zephyrlilies their reputation as rain lilies.

This species is also known by its synonym Atamosco simpsonii, and it’s classified as an herbaceous forb—meaning it’s a non-woody flowering plant that dies back to the ground each year but returns from underground bulbs.

Where It Calls Home

The redmargin zephyrlily is native to a relatively small area of the southeastern United States, naturally occurring in Alabama, Florida, Georgia, Mississippi, North Carolina, and South Carolina. It thrives in the coastal plains and adjacent piedmont regions where it has adapted to the specific climate and soil conditions of these areas.

Important Conservation Considerations

Here’s where responsible gardening comes into play: the redmargin zephyrlily has a Global Conservation Status of S2S3, meaning it’s considered rare to uncommon in its native range. While this makes it an exciting addition to native plant gardens, it’s crucial that you only source bulbs from reputable native plant nurseries that propagate their stock rather than wild-collect it.

Never dig bulbs from wild populations, and always ask your supplier about their sourcing practices. By choosing responsibly propagated plants, you’re helping protect wild populations while still enjoying this beautiful native in your garden.

Growing Conditions and Care

The redmargin zephyrlily is surprisingly adaptable when it comes to growing conditions. It’s classified as a facultative wetland plant, meaning it can thrive in both wetland and non-wetland conditions. This flexibility makes it suitable for various garden situations:

  • Thrives in USDA hardiness zones 8-10
  • Prefers moist to wet soils but tolerates periods of drought
  • Grows well in partial shade to full sun
  • Can handle seasonal flooding, making it perfect for rain gardens
  • Tolerates clay soils common in many southeastern gardens

Perfect Garden Roles

This charming native works wonderfully in several garden settings:

  • Native plant gardens: Adds authentic regional character
  • Woodland gardens: Naturalizes beautifully under trees
  • Rain gardens: Handles wet conditions while providing seasonal color
  • Naturalized areas: Spreads slowly to form charming colonies
  • Pollinator gardens: Attracts bees, butterflies, and other small pollinators

Planting and Care Tips

Once you’ve sourced your bulbs responsibly, growing redmargin zephyrlilies is refreshingly straightforward:

  • Plant bulbs in fall, about 2-3 inches deep
  • Space them 4-6 inches apart for natural-looking colonies
  • Water regularly during the growing season, but don’t worry if they go dormant during dry spells
  • Minimal fertilization needed—these plants are adapted to natural soil conditions
  • Allow foliage to die back naturally to feed the bulbs
  • Mulch lightly to retain moisture and suppress weeds

What to Expect

Your redmargin zephyrlilies will reward you with delicate blooms from spring through fall, with the most dramatic displays often following rain showers. The plants may go dormant during very dry periods, but this is normal behavior—they’ll bounce back with the return of moisture.

While individual plants are small and unassuming, they gradually form charming colonies that bring a sense of wild authenticity to your garden. The flowers are particularly beloved by small native pollinators, adding ecological value to their ornamental appeal.

The Bottom Line

The redmargin zephyrlily offers southeastern gardeners a chance to grow a truly special native plant that supports local ecosystems while providing unique beauty. Just remember: this rare gem deserves our respect and protection. Always source your plants responsibly, and you’ll be contributing to conservation efforts while enjoying one of the Southeast’s most charming native bulbs.

With minimal care requirements and maximum charm, the redmargin zephyrlily proves that sometimes the most rewarding garden plants are the ones that connect us most deeply to our local natural heritage.

Redmargin Zephyrlily

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

Liliaceae Juss. - Lily family

Genus

Zephyranthes Herb. - zephyrlily

Species

Zephyranthes simpsonii Chapm. - redmargin zephyrlily

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