North America Native Plant

Mountain Cyrtandra

Botanical name: Cyrtandra dentata

USDA symbol: CYDE4

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Synonyms: Cyrtandra frederickii H. St. John & Storey (CYFR3)   

Mountain Cyrtandra: A Rare Hawaiian Treasure for Your Shade Garden If you’re passionate about native Hawaiian plants and conservation gardening, mountain cyrtandra might just capture your heart. This enchanting shrub, known scientifically as Cyrtandra dentata, is one of Hawaii’s precious endemic species that deserves our attention and protection. What Makes ...

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

Mountain Cyrtandra: A Rare Hawaiian Treasure for Your Shade Garden

If you’re passionate about native Hawaiian plants and conservation gardening, mountain cyrtandra might just capture your heart. This enchanting shrub, known scientifically as Cyrtandra dentata, is one of Hawaii’s precious endemic species that deserves our attention and protection.

What Makes Mountain Cyrtandra Special?

Mountain cyrtandra is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet tall. What makes this plant truly special isn’t just its attractive appearance, but its incredible rarity and unique place in Hawaiian ecosystems.

This lovely shrub produces small, delicate white tubular flowers that stand out beautifully against its serrated green leaves. The flowers are perfectly designed to attract native Hawaiian insects, making it an important part of the local pollinator network.

Where Does Mountain Cyrtandra Come From?

Mountain cyrtandra is endemic to Hawaii, meaning it exists nowhere else on Earth. You’ll find this species growing naturally in the wet forests of the Hawaiian islands, where it thrives in the understory beneath the forest canopy.

A Word of Caution: This Plant is Critically Endangered

Before considering planting mountain cyrtandra, it’s crucial to understand that this species is critically imperiled. With a Global Conservation Status of S1 and listed as Endangered in the United States, there are typically only five or fewer occurrences of this plant in the wild, with very few remaining individuals.

If you’re interested in growing this remarkable plant, please ensure you only obtain it through:

  • Reputable native plant nurseries with proper permits
  • Conservation organizations with legitimate propagation programs
  • Botanical gardens participating in species recovery efforts

Never collect this plant from the wild, as doing so could contribute to its extinction.

Is Mountain Cyrtandra Right for Your Garden?

Mountain cyrtandra is perfect for gardeners who want to:

  • Support Hawaiian native plant conservation
  • Create authentic native Hawaiian landscapes
  • Attract native pollinators to their gardens
  • Add unique beauty to shaded areas

This shrub works wonderfully in shade gardens, native plant collections, and as an understory specimen in larger landscape designs. It’s particularly suited for gardens that celebrate Hawaiian heritage and biodiversity.

Growing Conditions and Care

Mountain cyrtandra is definitely not a plant for beginners, but dedicated gardeners can succeed with the right conditions:

Climate Requirements: This tropical beauty only thrives in USDA hardiness zones 10-11, making it suitable primarily for Hawaii and similar tropical climates.

Light Needs: Provide partial to full shade, mimicking its natural forest understory habitat. Direct sunlight can damage the delicate leaves.

Soil and Water: Mountain cyrtandra demands consistently moist, well-draining soil rich in organic matter. Think of the forest floor conditions where it naturally grows. High humidity is also essential for its health.

Ongoing Care: Regular watering is crucial, but avoid waterlogged conditions. Mulching around the base helps maintain moisture and provides nutrients as it decomposes.

Supporting Conservation Through Gardening

By choosing to grow mountain cyrtandra (with responsibly sourced plants), you’re not just adding beauty to your garden – you’re participating in conservation efforts. Every successfully grown plant represents hope for this endangered species’ future.

Consider connecting with local botanical gardens, native plant societies, or conservation organizations to learn more about Hawaiian native plant preservation. Your garden could become part of a larger effort to save this remarkable species for future generations.

Mountain cyrtandra may be challenging to grow and difficult to source, but for dedicated gardeners committed to conservation, it offers the reward of nurturing one of Hawaii’s rarest botanical treasures.

Mountain Cyrtandra

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

Scrophulariales

Family

Gesneriaceae Rich. & Juss. - Gesneriad family

Genus

Cyrtandra J.R. Forst. & G. Forst. - cyrtandra

Species

Cyrtandra dentata H. St. John & Storey - mountain cyrtandra

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