North America Native Plant

Alligatorlily

Botanical name: Hymenocallis palmeri

USDA symbol: HYPA4

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Hymenocallis humilis S. Watson (HYHU)   

Alligatorlily: A Rare Florida Native Worth Growing Responsibly If you’re looking for a stunning native plant that brings both beauty and ecological value to your Florida garden, meet the alligatorlily (Hymenocallis palmeri). This enchanting perennial produces some of the most distinctive flowers you’ll ever see – pure white blooms that ...

Rare plant alert!

Region: Conservation status by state

Status: S3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ 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 ⚘

Alligatorlily: A Rare Florida Native Worth Growing Responsibly

If you’re looking for a stunning native plant that brings both beauty and ecological value to your Florida garden, meet the alligatorlily (Hymenocallis palmeri). This enchanting perennial produces some of the most distinctive flowers you’ll ever see – pure white blooms that look like elegant spiders dancing in the breeze, complete with long, delicate petals and showy stamens that practically glow in moonlight.

What Makes Alligatorlily Special

Alligatorlily is a true Florida treasure – it’s found nowhere else in the world except in the wetlands and swamps of the Sunshine State. As a member of the amaryllis family, this herbaceous perennial grows from a bulb and produces its spectacular flowers during the warm summer months. The fragrant white blooms are absolutely magnetic to nighttime pollinators, especially moths, making your garden come alive after dark.

Where You’ll Find It Growing Wild

This native beauty calls Florida home, specifically thriving in the state’s wetland areas. You’ll find it growing naturally in swamps, marshes, and other consistently moist environments throughout Florida.

A Rare Gem That Needs Our Help

Here’s something important every gardener should know: alligatorlily has a conservation status that suggests it may be at risk. While the exact level of concern is still being determined, this makes it even more special to grow in your garden – but only when you source it responsibly. Always purchase plants or bulbs from reputable native plant nurseries rather than collecting from the wild.

Perfect Spots in Your Garden

Alligatorlily isn’t your typical border plant – it’s an obligate wetland species, which means it almost always needs wet conditions to thrive. This makes it perfect for:

  • Rain gardens and bioswales
  • Edges of ponds or water features
  • Bog gardens
  • Native plant gardens with consistent irrigation
  • Areas that stay naturally moist or flood occasionally

Think of it as your go-to plant for those challenging wet spots where other plants might struggle.

Growing Alligatorlily Successfully

The key to happy alligatorlilies is remembering they’re wetland plants at heart. Here’s what they need:

Light Requirements: Full sun to partial shade – they’re quite adaptable as long as their feet stay wet.

Soil and Water: Consistently moist to wet soil is non-negotiable. Think swamp conditions! They’ll tolerate periodic flooding and actually prefer it to drying out.

Climate: Hardy in USDA zones 8-10, making them perfect for most of Florida and parts of the Gulf Coast.

Planting and Care Tips

Plant bulbs in spring when soil temperatures warm up. Choose a spot that stays consistently moist – if you don’t have a naturally wet area, you’ll need to commit to regular watering or install irrigation. Mulch around the base to help retain moisture and suppress weeds.

The good news? Once established in the right conditions, alligatorlilies are relatively low-maintenance. Just keep them happy with consistent moisture, and they’ll reward you with those stunning summer blooms year after year.

Supporting Pollinators and Wildlife

By growing alligatorlily, you’re creating habitat for native moths and other nighttime pollinators. The fragrant blooms are specifically adapted to attract these creatures, making your garden part of the local ecosystem’s support network.

Should You Grow Alligatorlily?

If you have the right growing conditions – particularly consistently wet soil – and can source plants responsibly, absolutely! You’ll be supporting the conservation of a rare native species while adding a truly unique and beautiful plant to your landscape. Just remember that this isn’t a plant for dry gardens or casual waterers. But if you’re ready to embrace wetland gardening, alligatorlily will become one of your most prized plants.

Growing rare natives like alligatorlily is one of the most rewarding ways to garden – you’re not just creating beauty, you’re helping preserve Florida’s unique botanical heritage for future generations.

Alligatorlily

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

Hymenocallis Salisb. - spiderlily

Species

Hymenocallis palmeri S. Watson - alligatorlily

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