Conkerberry
Carissa spinarum
N/A
About this plant
Carissa spinarum, commonly known as Conkerberry, is a thorny shrub native to parts of Africa, Asia, and Australia. It produces small, fragrant white flowers followed by edible red or black berries. The plant is often used as a natural hedge or barrier due to its dense, spiny growth. It is drought-tolerant and can grow in poor soils, making it useful for landscaping in dry areas.
Taxonomy
- Genus
- Carissa
- Family
- Apocynaceae
- Higher classification
- Order Gentianales
- Plant type
- Shrub
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Africa, India, Australia
- Distribution
- Native to Africa, the Indian subcontinent, and northern Australia; also cultivated in tropical and subtropical regions worldwide.
Care
- Light preference
- Full sun
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- South-facing, West-facing, East-facing
- Watering frequency
- Moderate
- Watering interval
- 7–14 days
- Humidity
- Normal
- Minimum
- 5 °C
- Maximum
- 40 °C
- Optimal
- 20–30 °C
- USDA hardiness zones
- 9–11
- Soil pH
- 6.0–7.5 (neutral to slightly acidic)
- Soil type
- well-draining sandy or loamy soil
Watering. Water moderately, allowing the soil to dry out between waterings. Avoid waterlogging to prevent root rot.
Fertilizing. Feed Carissa spinarum with a balanced fertilizer once or twice during the growing season to encourage healthy growth and fruiting. Avoid over-fertilizing, which can lead to excessive leaf growth at the expense of flowers and fruit.
Carissa spinarum is a hardy shrub that tolerates dry conditions and full sun well. It prefers well-draining soil and does not like to be overwatered. Occasional pruning helps maintain its shape and remove any dead branches. It is generally low maintenance but can be sensitive to overwatering.
Propagation
- Propagation methods
- Seeds, Cuttings
- Care difficulty
- Medium
Ornamental features
- Flowering
- Yes
- Flowering period
- spring–summer
Glossy dark green leaves, fragrant white star-shaped flowers, and bright red to black edible berries.
Toxicity & Safety
- Toxic to humans
- Mildly toxic
- Toxic to pets
- Mildly toxic
- Weed potential
- Low spread
The berries are edible when ripe, but unripe fruit and other parts of the plant may be mildly toxic if ingested. Keep away from children and pets to avoid accidental ingestion.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Sap or latex, Skin contact
- Pollen level
- Low
Carissa spinarum may cause mild skin irritation in some people when touched due to its sap. It is not known for causing pollen allergies. To reduce any risk, wear gloves when handling the plant and avoid direct contact with the sap.
Common problems
Overwatering can cause root rot. In dry conditions, the plant may drop leaves. Pests are usually not a major problem but watch for occasional aphids or scale insects.
Uses
Used as an ornamental hedge plant, for edible fruit, and sometimes in traditional medicine.
Notes
Prune after flowering to maintain shape and remove dead or damaged branches. The plant has sharp thorns, so handle with care. It can be grown indoors in a sunny spot but prefers outdoor conditions.