North America Native Plant

Maui Plantain

Botanical name: Plantago pachyphylla

USDA symbol: PLPA4

Life cycle: perennial

Habit: forb

Native status: Native to Hawaii  

Synonyms: Plantago glabrifolia (Rock) Pilg. (PLGL3)  âš˜  Plantago grayana Pilg. (PLGR4)  âš˜  Plantago grayana Pilg. var. abrotanelloides Skottsb. (PLGRA)  âš˜  Plantago hillebrandii Pilg. (PLHI5)  âš˜  Plantago krajinae Pilg. (PLKR)  âš˜  Plantago melanochrous Pilg. (PLME3)  âš˜  Plantago muscicola (Rock) Pilg. (PLMU)  âš˜  Plantago pachyphylla A. Gray var. maviensis (PLPAM)  âš˜  Plantago pachyphylla A. Gray var. rotundifolia Wawra (PLPAR)   

Maui Plantain: A Rare Hawaiian Native Worth Protecting in Your Garden If you’re passionate about native Hawaiian plants and conservation gardening, you might want to get acquainted with Maui plantain (Plantago pachyphylla). This unassuming little perennial forb might not win any beauty contests, but it’s got something much more valuable: ...

Rare plant alert!

Region: Conservation status by state

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

Maui Plantain: A Rare Hawaiian Native Worth Protecting in Your Garden

If you’re passionate about native Hawaiian plants and conservation gardening, you might want to get acquainted with Maui plantain (Plantago pachyphylla). This unassuming little perennial forb might not win any beauty contests, but it’s got something much more valuable: it’s a rare piece of Hawaii’s natural heritage that deserves a spot in the right garden.

What Makes Maui Plantain Special

Maui plantain is what botanists call a forb – basically a soft-stemmed plant without woody tissue that grows close to the ground. Don’t expect towering drama from this one; instead, think of it as nature’s quiet achiever. This perennial forms neat little rosettes of thick, fleshy leaves that hug the earth, sending up modest flower spikes when the mood strikes.

What really sets this plant apart is its story. Plantago pachyphylla is endemic to Hawaii, meaning it evolved here and exists nowhere else on Earth. That’s pretty special when you think about it – this little plant is a living piece of Hawaiian natural history.

Where You’ll Find It (And Why That Matters)

Maui plantain calls the Hawaiian Islands home, growing naturally across several islands including Maui and the Big Island. However, here’s where things get serious: this plant has a Global Conservation Status of S3, which translates to Vulnerable. In plain English, that means it’s rare and at risk, with only 21 to 100 known populations containing roughly 3,000 to 10,000 individual plants total.

Should You Grow Maui Plantain?

The short answer is: maybe, but only if you can source it responsibly. Because of its vulnerable status, you should never collect this plant from the wild. If you’re interested in growing Maui plantain, work only with reputable native plant nurseries or botanical gardens that propagate it ethically.

Here’s who should consider adding it to their landscape:

  • Conservation-minded gardeners working on native Hawaiian plant preservation
  • Anyone creating authentic Hawaiian native plant gardens
  • Wetland restoration enthusiasts
  • Gardeners with naturally boggy or consistently moist areas

Growing Conditions: It Likes Its Feet Wet

Maui plantain is classified as a Facultative Wetland plant, which means it’s happiest with its roots in consistently moist to wet soil, though it can tolerate some drier periods. Think of it as the plant equivalent of someone who loves long baths – it thrives in conditions that might make other plants throw in the towel.

Here’s what this little Hawaiian native needs to thrive:

  • Moisture: Consistently moist to wet soil – never let it completely dry out
  • Light: Partial shade to full sun, though it appreciates some protection from intense midday heat
  • Soil: Boggy or wetland-type soil with good organic content
  • Climate: USDA zones 10-12 (tropical and subtropical climates only)

Planting and Care Tips

Growing Maui plantain successfully is all about recreating its natural wetland habitat. Here’s how to keep it happy:

  • Plant in areas that stay naturally moist or install irrigation to maintain consistent soil moisture
  • Add organic mulch to help retain moisture and suppress weeds
  • Skip the fertilizer – like many native plants, it’s adapted to nutrient-poor conditions
  • Be patient – native plants often take time to establish but are worth the wait

The Conservation Connection

While Maui plantain might not attract clouds of butterflies or produce showy blooms, it serves an important role in Hawaii’s native ecosystem. Its small flowers can provide nectar for native Hawaiian insects, and the plant itself helps stabilize soil in wetland areas.

More importantly, by growing rare native plants like Maui plantain in our gardens, we’re creating insurance populations that could prove crucial for the species’ long-term survival. Every responsibly grown plant is a small victory for conservation.

The Bottom Line

Maui plantain isn’t for every garden or every gardener. It requires specific growing conditions and careful sourcing due to its rarity. But if you have the right spot – a naturally moist area in zones 10-12 – and access to responsibly propagated plants, growing this little Hawaiian native is a meaningful way to participate in plant conservation.

Remember: never collect from wild populations, always source from reputable suppliers, and consider your garden a small sanctuary for Hawaii’s irreplaceable native flora. Sometimes the most important plants aren’t the prettiest ones – they’re the ones that need our help the most.

Maui Plantain

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 pachyphylla A. Gray - Maui plantain

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