North America Native Plant

Haha

Botanical name: Cyanea maritae

USDA symbol: CYMA23

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Cyanea maritae (Haha): A Critically Endangered Hawaiian Treasure Worth Protecting Meet one of Hawaii’s rarest native plants – Cyanea maritae, known locally as haha. This stunning member of the bellflower family represents both the incredible beauty and heartbreaking fragility of Hawaii’s unique flora. While you might not find this plant ...

Rare plant alert!

Region: United States

Status: S1: 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) ⚘ Endangered: In danger of extinction throughout all or a significant portion of its range. ⚘

Region: United States

Cyanea maritae (Haha): A Critically Endangered Hawaiian Treasure Worth Protecting

Meet one of Hawaii’s rarest native plants – Cyanea maritae, known locally as haha. This stunning member of the bellflower family represents both the incredible beauty and heartbreaking fragility of Hawaii’s unique flora. While you might not find this plant at your local nursery, understanding its story helps us appreciate the importance of native plant conservation.

A Plant on the Brink

Before we dive into growing tips, there’s something crucial you need to know: Cyanea maritae is critically endangered. With a Global Conservation Status of S1 and listed as Endangered in the United States, this species typically has only 5 or fewer occurrences in the wild, with fewer than 1,000 individual plants remaining. This makes it one of Hawaii’s most imperiled native species.

Important: If you’re considering growing this plant, only obtain it through responsible sources involved in conservation efforts, such as botanical gardens or certified conservation nurseries.

Where Does Haha Call Home?

Cyanea maritae is endemic to Hawaii, meaning it exists nowhere else on Earth naturally. This remarkable plant grows exclusively in the Hawaiian Islands, making it a true treasure of Pacific island biodiversity.

What Makes This Plant Special?

Despite being a perennial that can grow as a multi-stemmed woody shrub reaching 13-16 feet in height, Cyanea maritae has an almost otherworldly appearance that makes it instantly recognizable:

  • Large, dramatic leaves that create bold architectural interest
  • Striking tubular flowers that evolved specifically for Hawaii’s native bird pollinators
  • Unique growth habit with multiple stems arising from near the ground
  • Impressive height potential under ideal conditions

Growing Conditions: Not for Beginners

If you’re fortunate enough to obtain Cyanea maritae through conservation channels, be prepared for a gardening challenge. This plant has very specific needs:

  • Climate: USDA hardiness zones 10-12 only (tropical conditions required)
  • Light: Partial shade to filtered sunlight
  • Soil: Moist, well-draining soil with high organic content
  • Humidity: High humidity levels essential
  • Protection: Shelter from strong winds due to top-heavy growth

Garden Role and Design Considerations

In the right tropical garden setting, Cyanea maritae serves as an exceptional:

  • Specimen plant for dramatic focal points
  • Conservation garden centerpiece
  • Educational plant for native Hawaiian gardening
  • Tropical accent in protected, humid microclimates

The Conservation Connection

Growing Cyanea maritae isn’t just about having an unusual plant – it’s about participating in conservation efforts. The original pollinators for this species, Hawaiian honeycreepers, are themselves critically endangered or extinct, making the plant’s survival even more precarious in the wild.

Should You Grow Haha?

Honestly? Most gardeners shouldn’t attempt Cyanea maritae. Here’s why:

  • Extremely difficult growing requirements
  • Limited to tropical climates only
  • Requires responsibly sourced plants (not commercially available)
  • Needs experienced care and conservation commitment

However, if you’re an experienced tropical gardener committed to native Hawaiian plant conservation, live in zones 10-12, and can source plants responsibly, this species offers an unparalleled opportunity to help preserve one of Hawaii’s most endangered native plants.

Alternatives for Most Gardeners

For gardeners inspired by Cyanea maritae but unable to grow it, consider other native plants from your region that offer similar conservation benefits and dramatic tropical aesthetics. Supporting any native plant conservation helps preserve the biodiversity that makes species like haha so special.

Remember: sometimes the best way to appreciate a rare plant is to support the organizations working to save it in its native habitat, rather than attempting to grow it ourselves.

Haha

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 maritae Lammers & H. Oppenh. - haha

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