Starburst Clerodendrum (Clerodendrum quadriloculare)
Quadriloculare
About this plant
Clerodendrum quadriloculare, known as Starburst Clerodendrum, is a tropical shrub famous for its striking star-shaped flowers that bloom in clusters. Its leaves are large and glossy, often with a purple underside, adding to its ornamental appeal. This plant is popular in gardens for its dramatic appearance and fast growth.
Taxonomy
Higher classification: Order Lamiales
Origin & Distribution
- Native region
- Philippines, Indonesia
- Distribution
- Native to the Philippines and Indonesia; widely cultivated in tropical and subtropical regions worldwide.
Care
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- East-facing, South-facing, West-facing
- USDA hardiness zones
- 10–12
- Soil pH
- 6.0–7.5
- Soil type
- well-draining loam
Watering. Water regularly to keep soil moist but not soggy. Allow the top inch of soil to dry out between waterings.
Fertilizing. Feed with a balanced, water-soluble fertilizer every 4-6 weeks during the growing season to support healthy growth and flowering.
This plant grows quickly and prefers sunny spots with well-draining soil. It needs regular watering but dislikes waterlogged conditions. Pruning helps maintain its shape and encourages blooming. It is fairly tough but can suffer if kept too wet or in deep shade.
Propagation
- Propagation methods
- Cuttings
Ornamental features
- Flowering
- Yes
- Flowering period
- spring–summer
Large glossy leaves with purple undersides and clusters of star-shaped pink and white flowers.
Toxicity & Safety
Sap may cause mild skin irritation; keep away from children and pets to avoid accidental ingestion.
Allergy information
Clerodendrum quadriloculare may cause mild skin irritation for some people when touched. It produces pollen that can trigger allergies in sensitive individuals, especially during its flowering season. To reduce exposure, avoid direct contact with the sap and keep the plant outdoors or in well-ventilated areas during blooming.
Common problems
Overwatering can cause root rot, and lack of sunlight may reduce flowering. Pests like aphids or spider mites can occasionally appear.
Uses
Primarily grown as an ornamental plant for its attractive flowers and foliage in gardens and landscapes.
Notes
Prune after flowering to control size and encourage bushier growth. Protect from frost and cold drafts. Repot young plants annually to support growth.