Native Plants

Dubautia

Dubautia ×thyrsiflora

USDA symbol: DUTH

perennial subshrub

Hawaii: native

If you’re looking to add authentic Hawaiian character to your garden while supporting local ecosystems, meet Dubautia ×thyrsiflora – a charming native shrub that deserves a spot in more island landscapes. This perennial beauty represents the best of Hawaii’s endemic flora, offering gardeners a chance to cultivate something truly special ...

Dubautia: A Hidden Gem of Hawaiian Native Gardening

If you’re looking to add authentic Hawaiian character to your garden while supporting local ecosystems, meet Dubautia ×thyrsiflora – a charming native shrub that deserves a spot in more island landscapes. This perennial beauty represents the best of Hawaii’s endemic flora, offering gardeners a chance to cultivate something truly special and uniquely Hawaiian.

What Makes Dubautia Special

Known simply as dubautia, this native Hawaiian shrub belongs to a fascinating group of plants found nowhere else on Earth. As a hybrid species (indicated by the × in its name), Dubautia ×thyrsiflora represents the natural creativity of Hawaiian evolution, where different dubautia species have crossed to create something entirely new.

This multi-stemmed woody plant typically stays under 13-16 feet tall, making it a manageable size for most residential landscapes. With its perennial nature, you can count on this shrub to provide year-round structure and interest in your garden.

Where You’ll Find It Growing Wild

Dubautia ×thyrsiflora calls Hawaii home and only Hawaii. This endemic treasure has evolved specifically for life in the Hawaiian Islands, making it perfectly adapted to local conditions that challenge many mainland plants.

  • Species observed
  • No observations

Why Choose Dubautia for Your Garden

There are compelling reasons to consider this native Hawaiian shrub:

  • Authentic Hawaiian character: Few plants can claim to be more genuinely Hawaiian than dubautia species
  • Ecosystem support: Native plants provide food and habitat for native Hawaiian wildlife and pollinators
  • Adapted to local conditions: Evolved specifically for Hawaiian climates and soils
  • Low maintenance potential: Once established, native plants typically require less intervention
  • Conservation value: Growing native plants helps preserve Hawaii’s unique botanical heritage

Growing Conditions and Care

Success with dubautia starts with understanding its natural habitat. This shrub thrives in Hawaii’s USDA hardiness zones 10-11, where it has adapted to volcanic soils and island weather patterns.

Ideal growing conditions include:

  • Excellent drainage (crucial for preventing root rot)
  • Full sun to partial shade exposure
  • Well-draining volcanic or sandy soils
  • Protection from strong trade winds when young
  • Minimal supplemental watering once established

Planting and Care Tips

Getting your dubautia off to a good start requires attention to a few key details:

Planting: Choose a location with excellent drainage – this cannot be overstated. If your soil holds water, consider creating a raised planting area or adding volcanic rock and sand to improve drainage. Plant at the same depth it was growing in its container.

Watering: Water regularly during establishment (first 6-12 months), then reduce frequency as the plant adapts. Mature plants should tolerate dry periods well, reflecting their adaptation to Hawaii’s variable rainfall patterns.

Maintenance: Minimal pruning is typically needed. Remove dead or damaged branches as necessary, and you can shape the plant lightly after flowering if desired.

Garden Design Ideas

Dubautia works beautifully in several landscape contexts:

  • Native Hawaiian gardens: Combine with other endemic plants for an authentic island ecosystem
  • Xeriscaping: Perfect for drought-tolerant landscapes
  • Volcanic rock gardens: Complements Hawaii’s natural geological features
  • Wildlife gardens: Provides resources for native Hawaiian fauna
  • Windbreaks: Can serve as part of a natural wind barrier when mature

A Note on Sourcing

When adding dubautia to your garden, source plants from reputable native plant nurseries that propagate rather than wild-collect their specimens. This ensures you’re supporting conservation rather than depleting wild populations of this special Hawaiian endemic.

Dubautia ×thyrsiflora offers Hawaiian gardeners a wonderful opportunity to connect their landscapes with the islands’ unique natural heritage. While it may not be the showiest plant in your garden, its authentic Hawaiian character and ecological value make it a worthwhile addition for any gardener interested in celebrating and preserving Hawaii’s remarkable native flora.

Dubautia ×thyrsiflora is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Dubautia ×thyrsiflora is also known as:

Dubautia coriacea | USDA symbol: DUCO2
Dubautia ternifolia | USDA symbol: DUTE
Dubautia thyrsiflora Keck var. cernua | USDA symbol: DUTHC
Railliardia demissifolia Sherff var. dolichophylla | USDA symbol: RADED
Railliardia ternifolia | USDA symbol: RATE4
Railliardia thyrsiflora | USDA symbol: RATH
Railliardia thyrsiflora Sherff var. cernua | USDA symbol: RATHC

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Asterales
Family: Asteraceae Bercht. & J. Presl - Aster family
Genus: Dubautia Gaudich. - dubautia

Species: Dubautia ×thyrsiflora (Sherff) D.D. Keck (pro sp.) [dolosa × scabra] - dubautia

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