Description
Calibrachoa, commonly known as “Million Bells,” is a popular choice for gardens due to its abundant, colorful blooms. Here are some tips for growing Calibrachoa successfully in South Africa:
1. Location
- Light: Calibrachoa thrives in full sun to light shade. Aim for at least 6 hours of direct sunlight daily to encourage prolific blooming.
- Climate: Calibrachoa is well-suited to South Africa’s warm climate. It prefers moderate temperatures and may require some protection from extreme heat.
2. Soil
- Type: Well-draining soil is essential for Calibrachoa. A mix that includes peat, compost, and perlite or sand can improve drainage.
- pH: Slightly acidic to neutral soil (pH 5.5-6.5) is ideal.
3. Watering
- Frequency: Keep the soil consistently moist but not waterlogged. Water regularly, especially during dry periods, but allow the soil to dry out slightly between waterings to prevent root rot.
- Method: Water at the base of the plants to avoid wetting the foliage, which can help prevent fungal diseases.
4. Fertilization
- Type: Use a balanced, water-soluble fertilizer or a slow-release granular fertilizer.
- Frequency: Feed every 2-4 weeks during the growing season to promote vigorous growth and abundant flowers.
5. Planting
- Timing: Plant Calibrachoa in spring after the last frost or in early fall.
- Spacing: Space the plants about 20-30 cm (8-12 inches) apart to allow for good air circulation and growth.
6. Pruning and Deadheading
- Deadheading: Regular deadheading is not necessary as Calibrachoa is self-cleaning. However, removing spent blooms can enhance appearance.
- Pruning: Lightly trim the plants if they become leggy to encourage bushier growth and more blooms.
7. Propagation
- Seeds: While Calibrachoa can be grown from seeds, they are often propagated from cuttings.
- Cuttings: Take softwood cuttings in late spring or early summer. Root them in a moist, well-draining medium and keep them warm and humid until they establish roots.
8. Pests and Diseases
- Common Pests: Watch for aphids, spider mites, and whiteflies. Treat infestations with insecticidal soap or neem oil.
- Diseases: Ensure good air circulation and avoid overhead watering to prevent fungal diseases like powdery mildew and root rot.
9. Container Growing
- Calibrachoa performs well in containers and hanging baskets. Ensure the containers have good drainage holes and use a high-quality potting mix.
10. Winter Care
- In areas with mild frost, apply mulch around the base of the plants to protect the roots. In regions with severe frost, consider growing Calibrachoa as an annual or move container plants indoors.
Summary
To grow Calibrachoa successfully in South Africa, plant them in a sunny location with well-draining, slightly acidic soil. Water regularly, fertilize every few weeks during the growing season, and prune if necessary to encourage bushier growth. Monitor for pests and diseases, and provide winter protection if needed. With proper care, Calibrachoa will reward you with a profusion of colorful blooms throughout the growing season.
