North America Native Plant

Waihee Valley Cyanea

Botanical name: Cyanea lobata lobata

USDA symbol: CYLOL

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Waihee Valley Cyanea: A Rare Hawaiian Treasure Worth Protecting If you’re passionate about Hawaiian native plants and conservation, the Waihee Valley cyanea (Cyanea lobata lobata) might just capture your heart. This extraordinary perennial shrub is as rare as it is beautiful, making it a plant that deserves our utmost respect ...

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) ⚘

Waihee Valley Cyanea: A Rare Hawaiian Treasure Worth Protecting

If you’re passionate about Hawaiian native plants and conservation, the Waihee Valley cyanea (Cyanea lobata lobata) might just capture your heart. This extraordinary perennial shrub is as rare as it is beautiful, making it a plant that deserves our utmost respect and careful consideration.

What Makes This Plant Special?

The Waihee Valley cyanea is a multi-stemmed woody perennial that typically grows as a shrub, usually reaching less than 13-16 feet in height. As a member of the bellflower family, it produces distinctive tubular flowers that have co-evolved with Hawaii’s native birds. Its lobed leaves give the plant an architectural quality that’s both tropical and sophisticated.

Where Does It Come From?

This remarkable plant is endemic to Hawaii, with its natural range specifically centered in the Waihee Valley area of Maui. It’s found nowhere else on Earth, making it a true Hawaiian treasure.

A Word of Caution: This Plant Is Critically Endangered

Here’s something every gardener needs to know: Cyanea lobata lobata has a Global Conservation Status of S1T1, meaning it’s critically imperiled. This isn’t just rare – it’s teetering on the edge of extinction. If you’re considering growing this plant, you must ensure any material you obtain is responsibly sourced through legitimate conservation programs or botanical institutions.

Never collect this plant from the wild. Instead, work with Hawaiian native plant societies, botanical gardens, or conservation organizations that have propagation programs.

Growing Conditions: Not for Beginners

Let’s be honest – this isn’t a plant for casual gardeners. The Waihee Valley cyanea requires very specific conditions that mimic its native mesic to wet forest habitat:

  • Partial shade to filtered sunlight
  • High humidity levels
  • Well-draining, organic-rich soil
  • Protection from strong winds
  • Consistent moisture without waterlogging
  • USDA zones 10-12 only (tropical climates)

Role in Your Garden

If you’re lucky enough to grow this plant, it works best in:

  • Specialized Hawaiian native plant collections
  • Conservation-focused botanical gardens
  • Protected areas of tropical landscapes
  • Educational demonstration gardens

This isn’t a plant for general landscaping – it’s more of a living piece of Hawaiian natural history that requires dedicated care and respect.

Wildlife and Pollinator Benefits

In its native habitat, the Waihee Valley cyanea plays a crucial role in supporting Hawaii’s native ecosystem. Its tubular flowers are specially adapted for pollination by Hawaiian honeycreepers, though sadly, many of these native bird species are also endangered.

Should You Grow It?

Only consider growing Cyanea lobata lobata if you:

  • Have experience with rare Hawaiian natives
  • Can provide the specialized growing conditions it needs
  • Are committed to conservation efforts
  • Can source plants through legitimate conservation channels
  • Live in an appropriate tropical climate (zones 10-12)

For most gardeners, supporting conservation organizations that protect this species in its natural habitat might be more impactful than attempting to grow it at home.

The Bottom Line

The Waihee Valley cyanea represents everything precious and fragile about Hawaii’s native flora. While it’s a stunning plant with incredible ecological importance, its critically endangered status means it’s not suitable for casual cultivation. If you’re drawn to Hawaiian natives, consider more common species first, and always remember that sometimes the best way to appreciate a rare plant is to support its protection in the wild.

Remember: every plant matters when you’re down to the last few individuals of a species. Handle with care, source responsibly, and help ensure future generations can marvel at this remarkable Hawaiian endemic.

Waihee Valley Cyanea

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

Campanulales

Family

Campanulaceae Juss. - Bellflower family

Genus

Cyanea Gaudich. - cyanea

Species

Cyanea lobata H. Mann - Waihee Valley cyanea

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