North America Non-native Plant

Clerodendrum Buchananii

Botanical name: Clerodendrum buchananii

USDA symbol: CLBU3

Native status: Not native but doesn't reproduce and persist in the wild

Clerodendrum buchananii: A Mysterious Member of the Glory Bower Family If you’ve stumbled across the name Clerodendrum buchananii in your plant research, you’re likely wondering what exactly this species is and whether it deserves a spot in your garden. Well, you’re not alone in your curiosity – this particular member ...

Clerodendrum buchananii: A Mysterious Member of the Glory Bower Family

If you’ve stumbled across the name Clerodendrum buchananii in your plant research, you’re likely wondering what exactly this species is and whether it deserves a spot in your garden. Well, you’re not alone in your curiosity – this particular member of the Clerodendrum genus is something of an enigma in the gardening world.

The Challenge of Rare and Obscure Species

Clerodendrum buchananii falls into that fascinating category of plants that exist in botanical literature but remain largely absent from mainstream horticulture. While the Clerodendrum genus is known for its showy, often fragrant flowers and includes popular garden species, C. buchananii appears to be one of those botanical unicorns – officially named but rarely seen or cultivated.

What We Know (And Don’t Know)

Here’s the honest truth about Clerodendrum buchananii: comprehensive information about this species is remarkably scarce. We don’t have reliable data about:

  • Its native range and geographical distribution
  • Common names or local nomenclature
  • Specific growing requirements
  • USDA hardiness zones
  • Mature size and growth habits
  • Invasive or conservation status

The Clerodendrum Family Context

What we do know is that Clerodendrum buchananii belongs to a diverse genus of flowering plants that includes both beloved garden specimens and problematic invasive species. Other Clerodendrum species range from compact shrubs to vigorous climbers, often featuring clusters of tubular flowers that attract butterflies and hummingbirds.

Should You Try to Grow It?

Given the lack of available information, growing Clerodendrum buchananii presents several challenges:

  • Sourcing authentic plants may be extremely difficult or impossible
  • Without known growing requirements, success would be largely experimental
  • Unknown invasive potential makes it a risky choice
  • Lack of documentation about wildlife benefits

Better Alternatives for Your Garden

Instead of searching for this elusive species, consider these well-documented and readily available native alternatives that provide similar ornamental value:

  • Native flowering shrubs in your region that attract pollinators
  • Well-established Clerodendrum species with known growing requirements
  • Local native plants recommended by your regional native plant society

The Importance of Plant Documentation

The case of Clerodendrum buchananii highlights an important lesson for gardeners: not every plant name you encounter represents a viable garden option. Some species exist primarily in scientific literature, herbarium specimens, or remote natural habitats where they haven’t been studied for horticultural potential.

Moving Forward

If you’re specifically interested in Clerodendrum species for your garden, focus on well-documented varieties with established growing guidelines and known native status. Your local extension office or native plant society can provide recommendations for species that will thrive in your specific conditions while supporting local wildlife.

Remember, the best garden plants are those we understand well – their needs, their behaviors, and their place in the ecosystem. Sometimes the most responsible choice is to admire a plant’s existence in the botanical record while choosing better-understood species for our actual gardens.

Clerodendrum Buchananii

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

Lamiales

Family

Verbenaceae J. St.-Hil. - Verbena family

Genus

Clerodendrum L. - glorybower

Species

Clerodendrum buchananii (Roxb.) Walp.

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