North America Native Plant

Ale

Botanical name: Plantago princeps var. princeps

USDA symbol: PLPRP

Life cycle: perennial

Habit: subshrub

Native status: Native to Hawaii  

Synonyms: Plantago princeps Cham. & Schltdl. var. queleniana (Gaudich.) Rock (PLPRQ)   

Ale: A Rare Hawaiian Treasure for Your Native Garden If you’re passionate about Hawaiian native plants and looking to add something truly special to your garden, let me introduce you to ale (Plantago princeps var. princeps). This humble little herb might not win any beauty contests, but it carries the ...

Rare plant alert!

Region: Conservation status by state

Status: S1T1: Status is uncertain but is somewhere between the following rankings: Critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘ Subspecies or variety is critically Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 5 or fewer occurrences or very few remaining individuals (<1,000) ⚘

Ale: A Rare Hawaiian Treasure for Your Native Garden

If you’re passionate about Hawaiian native plants and looking to add something truly special to your garden, let me introduce you to ale (Plantago princeps var. princeps). This humble little herb might not win any beauty contests, but it carries the heart and soul of Hawaii in its unassuming leaves.

What Makes Ale Special?

Ale is a perennial forb herb that’s as Hawaiian as it gets – it’s found nowhere else on Earth except in the Hawaiian Islands. This native plantain creates neat little rosettes of leaves close to the ground, sending up simple flower spikes that might remind you of its more common mainland relatives, but don’t be fooled. This is a plant with serious island credentials.

The botanical name Plantago princeps var. princeps might be a mouthful, but ale rolls off the tongue much easier. You might also encounter it listed under its synonym Plantago princeps var. queleniana in older references.

Where Does Ale Call Home?

This special plant is endemic to Hawaii, meaning it evolved here and exists nowhere else naturally. You’ll find ale growing in various habitats across the Hawaiian Islands, from coastal areas to higher elevations.

A Word of Caution: Rarity Matters

Here’s something crucial every gardener needs to know: ale has a Global Conservation Status of S1T1, which means it’s extremely rare and critically imperiled. This isn’t just another pretty native plant – it’s a conservation concern that deserves our respect and protection.

If you’re considering adding ale to your garden, please only use responsibly sourced material from reputable native plant nurseries or conservation programs. Never collect from wild populations, as this could harm already vulnerable communities of this rare plant.

Growing Ale Successfully

Growing ale requires patience and the right conditions. This plant thrives in USDA hardiness zones 10-11, making it suitable for tropical and subtropical climates similar to its Hawaiian homeland.

Ideal Growing Conditions

  • Well-draining volcanic or sandy soils
  • Partial shade to full sun exposure
  • Moderate, consistent moisture
  • Protection from strong winds
  • Warm temperatures year-round

Planting and Care Tips

  • Start with seeds or small plants from conservation nurseries
  • Plant in well-amended soil with excellent drainage
  • Water regularly but avoid waterlogged conditions
  • Mulch around plants to retain moisture and suppress weeds
  • Allow plants to naturalize and self-seed in appropriate areas

Why Choose Ale for Your Garden?

While ale might not be the showiest plant in your garden, it offers something much more valuable – a connection to Hawaii’s natural heritage. This plant is perfect for:

  • Native Hawaiian restoration gardens
  • Cultural landscape projects
  • Educational gardens focusing on endemic species
  • Conservation-minded gardeners who want to help preserve rare species

Supporting Local Ecosystems

As a native Hawaiian plant, ale provides food and habitat for native insects and other small wildlife. While it may seem modest, every native plant in your garden helps support the complex web of relationships that make Hawaiian ecosystems unique.

The Bottom Line

Ale is a plant for gardeners who understand that sometimes the most important plants aren’t the prettiest ones. If you have the right growing conditions and can source this rare plant responsibly, adding ale to your Hawaiian native garden is a meaningful way to participate in conservation while honoring the islands’ botanical heritage.

Just remember – with great rarity comes great responsibility. Choose your sources carefully, and consider yourself a steward of this precious piece of Hawaii’s natural legacy.

Ale

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

Plantaginales

Family

Plantaginaceae Juss. - Plantain family

Genus

Plantago L. - plantain

Species

Plantago princeps Cham. & Schltdl. - ale

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