Harlequin Glorybower (Clerodendrum trichotomum)

Harlequin Glorybower

Clerodendrum trichotomum

Its fragrant blooms and berry clusters paint late summer with soft color. Deciduous flowering shrub; common name: glorybower.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; produces the most blooms in full sun, but tolerates light shade in hot climates to prevent leaf scorch
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Watering Water deeply when the top 5 cm of soil feels dry; avoid overwatering to prevent root rot
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Temperature Hardy to -10°C; thrives in temperate climates; protect young plants from extreme frost damage
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Characteristics

  • Leaf: Opposite, ovate to heart-shaped leaves with dark green upper surfaces and fuzzy pale undersides
  • Flower: Fragrant white tubular blooms with prominent pink calyxes, clustered at stem tips
  • Fruit: Bright blue spherical berries held within persistent pink calyxes after flowering
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Care Guide

Watering

Keep soil evenly moist during active growth

Fertilization

Apply balanced slow-release fertilizer once. Cease fertilization in late autumn to prepare the plant for dormancy

Banana peel compost tea:Compost banana peels for 2–3 weeks to break down; steep in water for 24 hours, dilute 1:20 with water for root drenching; avoid using raw peels to prevent pest infestations
Pruning
  • Prune in late winter to remove dead, damaged, or crossing branches and shape the shrub
  • Thin overcrowded inner branches to improve air circulation and encourage better blooming
  • Remove spent flower clusters after blooming to maintain a tidy appearance (no rebloom will occur)
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; contains saponins that may cause vomiting, diarrhea, and lethargy if ingested

Humans: Ingestion of large amounts may cause mild gastrointestinal upset including nausea and stomach pain

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden shrub; cut flower arrangements for indoor display