Gelsemium Sempervirens "Carolina Jessamine" 10 Liter

Gelsemium sempervirens (Carolina Jessamine)

Product Description

Gelsemium sempervirens, commonly known as Carolina Jessamine, is a vigorous, evergreen climber admired for its fragrant, bright yellow tubular flowers that bloom in early spring. It is ideal for trellises, pergolas, fences, walls, and arbour planting, creating a dramatic display of colour and scent. This fast-growing climber is also suitable for screening and softening hard structures in gardens.

Size When Fully Grown

• Height/Spread: Can reach 3 m – 6 m (and sometimes up to 8 m in optimal conditions)
• Requires strong support and regular training to manage growth.

Best Growing Conditions

• Light: Full sun to partial shade. Best flowering in full sun.
• Soil: Well-drained, fertile soil with good organic content.
• Watering: Regular watering during establishment. Once established, moderately drought tolerant but performs best with consistent moisture.
• Temperature: Prefers warm, frost-free climates. Protect from heavy frost.
• Feeding: Apply a balanced fertiliser in spring to encourage flowering.
• Pruning: Light pruning after flowering to shape and control size. Avoid heavy pruning.

Common Pests & Problems

Gelsemium may be affected by:

• Aphids
• Scale insects
• Spider mites (especially in dry conditions)
• Powdery mildew in humid or poorly ventilated areas
  Regular monitoring and maintaining good airflow helps reduce issues.

Toxicity (Animals & Humans)

• Highly poisonous.
  All parts of the plant are toxic if ingested, including leaves, flowers, and stems. Symptoms may include nausea, vomiting, dizziness, and respiratory issues.
  Keep away from children and pets and avoid planting where accidental ingestion is possible.

Planting & Seasonal Guidance (South Africa)

• Best Time to Plant: Spring or early autumn for best establishment.
• Growing Season: Active growth occurs in spring and summer.
• Flowering Season: Late winter to early spring, often one of the first climbers to bloom.
• Winter Care: Reduce watering in winter and protect from frost in colder regions.