North America Non-native Plant

Glorybower

Botanical name: Clerodendrum

USDA symbol: CLERO2

Life cycle: perennial

Habit: vine

Native status: Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states âš˜ It's either native or not native in Pacific Basin excluding Hawaii âš˜ It's either native or not native in Puerto Rico âš˜ It's either native or not native in the U.S. Virgin Islands  

Glorybower: A Fragrant Addition to Your Warm-Climate Garden If you’re looking for a flowering shrub that brings both fragrance and visual appeal to your garden, you might want to consider glorybower (Clerodendrum). This perennial shrub has been making its way into gardens across the warmer regions of the United States, ...

Glorybower: A Fragrant Addition to Your Warm-Climate Garden

If you’re looking for a flowering shrub that brings both fragrance and visual appeal to your garden, you might want to consider glorybower (Clerodendrum). This perennial shrub has been making its way into gardens across the warmer regions of the United States, though it’s worth knowing a bit about its background before you decide if it’s right for your landscape.

What is Glorybower?

Glorybower is a multi-stemmed woody shrub that typically stays under 13-16 feet in height, though it can sometimes grow taller or even develop a single stem depending on growing conditions. As a perennial plant, it comes back year after year, making it a long-term investment in your garden’s structure and beauty.

Where Does Glorybower Come From?

Here’s something important to know upfront: glorybower isn’t native to the United States. It’s originally from tropical and subtropical regions of Africa, Asia, and some Pacific islands. However, it has established itself and now grows wild in many U.S. states including Alabama, Florida, Georgia, Hawaii, Louisiana, Maryland, Mississippi, North Carolina, Pennsylvania, South Carolina, and Texas, as well as in Palau, Puerto Rico, and the Virgin Islands.

Should You Plant Glorybower?

The decision to plant glorybower comes with some considerations. On the plus side, this shrub offers:

  • Showy, fragrant flower clusters that add both beauty and scent to your garden
  • Attractive ornamental berries that follow the flowers
  • Pollinator benefits – the fragrant blooms attract butterflies, bees, and other beneficial insects
  • Year-round presence as a perennial woody plant

However, since glorybower isn’t native to North America, you might want to consider native alternatives that provide similar benefits while supporting local ecosystems. Native shrubs often require less water and maintenance once established, and they provide better habitat and food sources for local wildlife.

Growing Glorybower Successfully

If you decide to grow glorybower, here’s what you need to know to keep it happy:

Climate Requirements

Glorybower thrives in USDA hardiness zones 9-11, making it suitable for tropical, subtropical, and warm temperate gardens. If you live in a cooler climate, you’ll need to provide frost protection or grow it as a container plant that can be moved indoors.

Growing Conditions

This shrub is fairly adaptable but prefers:

  • Partial shade to full sun exposure
  • Well-drained soil that doesn’t stay waterlogged
  • Regular moisture, especially during dry spells
  • Protection from strong winds in exposed locations

Planting and Care Tips

Getting glorybower established and keeping it healthy involves:

  • Planting in spring after the last frost date
  • Watering regularly, especially during the first growing season
  • Applying mulch around the base to retain moisture and suppress weeds
  • Pruning occasionally to maintain shape and remove dead or damaged branches
  • Providing winter protection in cooler areas of its hardiness range

The Bottom Line

Glorybower can be an attractive addition to warm-climate gardens, offering fragrant flowers and pollinator benefits. However, as a non-native plant, it’s worth considering whether native alternatives might better serve your garden’s ecosystem. If you do choose to plant glorybower, it’s relatively easy to grow with the right conditions and basic care. Just remember to check with your local extension office or native plant society for recommendations on native shrubs that might provide similar benefits while supporting your local environment.

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

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