North America Native Plant

Brackenridge’s Rosemallow

Botanical name: Hibiscus brackenridgei molokaianus

USDA symbol: HIBRM3

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Hibiscus brackenridgei A. Gray var. molokaianus Rock ex Caum (HIBRM2)   

Brackenridge’s Rosemallow: A Rare Hawaiian Treasure for Your Garden Meet Brackenridge’s rosemallow (Hibiscus brackenridgei molokaianus), a stunning native Hawaiian shrub that deserves a special place in every island gardener’s heart. This remarkable perennial isn’t just another pretty flower – it’s a living piece of Hawaiian heritage that’s become increasingly rare ...

Rare plant alert!

Region: Conservation status by state

Status: S1TH: 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) ⚘

Brackenridge’s Rosemallow: A Rare Hawaiian Treasure for Your Garden

Meet Brackenridge’s rosemallow (Hibiscus brackenridgei molokaianus), a stunning native Hawaiian shrub that deserves a special place in every island gardener’s heart. This remarkable perennial isn’t just another pretty flower – it’s a living piece of Hawaiian heritage that’s become increasingly rare in the wild.

What Makes This Plant Special?

Brackenridge’s rosemallow is actually a subspecies of Hawaii’s official state flower, making it extra special for local gardeners. This multi-stemmed woody shrub typically grows 4-5 meters tall (that’s about 13-16 feet for those keeping track), creating an impressive presence in any landscape. What really catches the eye are those gorgeous bright yellow hibiscus flowers that seem to glow against the distinctive heart-shaped leaves.

Where Does It Come From?

This beauty is endemic to Hawaii, specifically native to the island of Molokai. It’s found nowhere else in the world, which makes it pretty darn special. Unfortunately, it’s currently listed with a Global Conservation Status of S1TH, indicating it’s critically imperiled in the wild.

Should You Plant It?

Absolutely – but with a caveat! Because this plant is rare, it’s crucial that you source it responsibly. Never collect seeds or cuttings from wild populations. Instead, work with reputable native plant nurseries or conservation organizations that can provide ethically propagated specimens.

Here’s why it’s worth the extra effort:

  • You’ll be helping preserve a critically endangered Hawaiian species
  • Those stunning yellow flowers will add authentic tropical beauty to your landscape
  • It supports native Hawaiian pollinators, including the native yellow-faced bees
  • It’s perfectly adapted to Hawaiian growing conditions

Perfect Garden Settings

Brackenridge’s rosemallow shines in:

  • Native Hawaiian plant gardens
  • Conservation-focused landscapes
  • Tropical ornamental gardens
  • Educational or cultural gardens celebrating Hawaiian heritage

Growing Conditions and Care

The good news? This shrub is relatively easy to care for once you understand its preferences. Here’s what it loves:

Climate: USDA hardiness zones 10-11 (typical for Hawaii’s tropical climate)

Sunlight: Full sun to partial shade – it’s pretty flexible

Soil: Well-draining soil is essential. It won’t tolerate soggy feet!

Water: Moderate water needs. Once established, it’s fairly drought-tolerant

Planting and Care Tips

  • Plant in a spot protected from strong trade winds
  • Water regularly during establishment, then reduce frequency
  • Prune lightly after flowering to maintain shape
  • Mulch around the base to retain moisture and suppress weeds
  • Be patient – like many native plants, it may take time to establish

Supporting Conservation

By growing Brackenridge’s rosemallow in your garden, you’re not just adding beauty – you’re participating in conservation. This rare subspecies needs all the help it can get, and responsible cultivation can help ensure future generations will be able to enjoy this remarkable piece of Hawaiian natural heritage.

Remember, always source your plants from reputable nurseries that specialize in native Hawaiian species. Your garden can become a sanctuary for this endangered beauty while you enjoy its stunning flowers and cultural significance.

Brackenridge’s Rosemallow

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Malvales

Family

Malvaceae Juss. - Mallow family

Genus

Hibiscus L. - rosemallow

Species

Hibiscus brackenridgei A. Gray - Brackenridge's rosemallow

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