North America Native Plant

Cyrtandra

Botanical name: Cyrtandra ×mannii

USDA symbol: CYMA8

Life cycle: perennial

Habit: shrub

Native status: Native to Hawaii  

Cyrtandra: A Lesser-Known Native Hawaiian Shrub If you’re passionate about native Hawaiian plants, you might have stumbled across Cyrtandra ×mannii in your research. This perennial shrub represents one of Hawaii’s many endemic plant treasures, though it’s definitely flying under the radar compared to some of its more famous island cousins. ...

Cyrtandra: A Lesser-Known Native Hawaiian Shrub

If you’re passionate about native Hawaiian plants, you might have stumbled across Cyrtandra ×mannii in your research. This perennial shrub represents one of Hawaii’s many endemic plant treasures, though it’s definitely flying under the radar compared to some of its more famous island cousins.

What is Cyrtandra ×mannii?

Cyrtandra ×mannii is a native Hawaiian shrub that belongs to the fascinating Cyrtandra genus. The × in its name indicates that this is a hybrid species, which might explain why detailed information about it can be surprisingly hard to come by. Like other members of its family, this perennial plant grows as a multi-stemmed woody shrub, typically reaching heights of less than 13 to 16 feet, though most specimens stay considerably smaller.

Where Does It Grow?

This unique shrub calls Hawaii home and can be found exclusively in the Hawaiian Islands. As a true Hawaiian endemic, it’s part of the incredible biodiversity that makes the islands so special from a botanical perspective.

Should You Plant Cyrtandra ×mannii?

Here’s where things get a bit tricky. While Cyrtandra ×mannii is undoubtedly a legitimate part of Hawaii’s native flora, there’s remarkably little information available about its cultivation requirements, growth habits, or garden performance. This isn’t necessarily a red flag—it might simply mean that this particular hybrid hasn’t caught the attention of horticulturists yet, or it could be quite rare in the wild.

The Reality of Growing Lesser-Known Natives

If you’re set on growing native Hawaiian plants, you might want to consider some better-documented alternatives while we wait for more information about Cyrtandra ×mannii to become available. The Cyrtandra genus includes many species, and some of its relatives might offer similar benefits with more reliable growing information.

That said, if you’re an experienced native plant gardener in Hawaii and you have access to responsibly sourced material, this could be an interesting addition to a collection focused on rare or unusual native species.

What We Don’t Know (Yet)

Unfortunately, key details about successfully growing Cyrtandra ×mannii remain mysterious, including:

  • Specific growing conditions and soil preferences
  • Watering requirements
  • Sun or shade preferences
  • Propagation methods
  • Pollinator relationships
  • Wildlife benefits
  • Landscape design applications

The Bottom Line

Cyrtandra ×mannii represents the kind of botanical mystery that makes native plant gardening both exciting and occasionally frustrating. While we celebrate its status as a native Hawaiian species, the lack of cultivation information means it’s probably not the best choice for gardeners looking for reliable, well-understood native plants.

If you’re interested in supporting Hawaiian native flora, consider exploring other members of the Cyrtandra genus or well-documented native alternatives that can provide the ecological benefits you’re looking for while offering a better chance of gardening success.

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 ×mannii H. St. John & Storey (pro sp.) [lessoniana × waianaeensis] - cyrtandra

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