North America Non-native Plant

Kaempfer’s Glorybower

Botanical name: Clerodendrum kaempferi

USDA symbol: CLKA2

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Kaempfer’s Glorybower: A Fragrant Non-Native Shrub for Warm Climate Gardens If you’re looking for a flowering shrub that brings both fragrance and colorful berries to your landscape, Kaempfer’s glorybower (Clerodendrum kaempferi) might catch your eye. This perennial shrub offers a unique combination of aromatic blooms and striking fruit, though it ...

Kaempfer’s Glorybower: A Fragrant Non-Native Shrub for Warm Climate Gardens

If you’re looking for a flowering shrub that brings both fragrance and colorful berries to your landscape, Kaempfer’s glorybower (Clerodendrum kaempferi) might catch your eye. This perennial shrub offers a unique combination of aromatic blooms and striking fruit, though it comes with some important considerations for the environmentally conscious gardener.

What is Kaempfer’s Glorybower?

Kaempfer’s glorybower is a multi-stemmed woody shrub that typically reaches 4 to 5 meters (13 to 16 feet) in height, though it can grow taller under ideal conditions. As a perennial plant, it returns year after year, developing a fuller, more established appearance over time.

The shrub produces clusters of small, fragrant white or pale pink flowers that eventually give way to bright blue berries – a real showstopper in the landscape! These colorful fruits are one of the plant’s most distinctive features and provide visual interest well into the fall.

Important Note: This Plant Isn’t Native

Before we dive into growing tips, here’s something crucial to know: Clerodendrum kaempferi is not native to the United States. Originally from Japan and East Asia, this plant has been introduced to Florida, where it now reproduces on its own in the wild.

Currently, this plant is found growing in Florida, where it has established itself as a non-native species that can spread without human intervention.

While it’s not currently listed as invasive, its ability to self-propagate in natural areas is worth considering when making planting decisions.

Garden Appeal and Landscape Uses

Despite its non-native status, Kaempfer’s glorybower does offer some attractive qualities for gardeners in warm climates:

  • Fragrant flowers that attract butterflies and other pollinators
  • Striking blue berries that add fall and winter interest
  • Can serve as a specimen plant, hedge, or part of an exotic plant collection
  • Suitable for tropical and subtropical garden designs

Growing Conditions and Care

If you decide to grow Kaempfer’s glorybower, here’s what it needs to thrive:

Climate Requirements: This plant is only suitable for USDA hardiness zones 9-11, making it a warm-weather exclusive. It won’t survive freezing temperatures.

Light and Soil: Kaempfer’s glorybower adapts well to both partial shade and full sun conditions. It prefers well-draining soil and benefits from regular moisture, though it shouldn’t be waterlogged.

Care Tips:

  • Water regularly, especially during dry periods
  • Prune occasionally to maintain desired shape and size
  • In marginal zones, provide protection from frost
  • Monitor for self-seeding to prevent unwanted spread

Consider Native Alternatives

While Kaempfer’s glorybower has its charms, consider exploring native flowering shrubs that provide similar benefits without the ecological concerns. Native plants support local wildlife more effectively and are naturally adapted to your region’s climate and soil conditions.

Some native alternatives to research for warm climates include native Sambucus species (elderberries), native Viburnum species, or regional native flowering shrubs that offer similar ornamental value while supporting local ecosystems.

The Bottom Line

Kaempfer’s glorybower can be an attractive addition to warm-climate gardens, offering fragrant flowers and colorful berries. However, its non-native status and ability to spread naturally mean it’s worth weighing against native alternatives that provide similar beauty while supporting local wildlife and ecosystems. If you do choose to plant it, be mindful of its spreading potential and consider it as part of a broader garden design that prioritizes native plants whenever possible.

Kaempfer’s Glorybower

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 kaempferi (Jacq.) Siebold - Kaempfer's glorybower

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