How to Sow Mixed Colour Nemesia Strumosa Flower Seeds in the UK 

Mixed Colour Nemesia Strumosa, also known as Carnival Mix, is a vibrant and compact bedding plant that blooms in stunning shades of pink, red, yellow, and white. Native to sandy coastal regions of South Africa, this half-hardy annual thrives in the UK, adding a cheerful splash of colour to pots, containers, window boxes, and garden borders. Once fully grown, Nemesia reaches a height of up to 30 cm, creating a bushy and vibrant display. 

When to Sow Mixed Colour Nemesia Strumosa Seeds 

• Indoor Sowing: Start seeds indoors from late winter to early spring (February to April) to get a head start on the growing season. 
• Outdoor Sowing: Sow seeds directly outdoors in mid to late spring (April to May) once the risk of frost has passed, and the soil is warm and workable. 

Step-by-Step Guide to Sowing Mixed Colour Nemesia Strumosa Seeds 

Indoor Sowing 

1. Prepare Containers: Fill pots, trays, or containers with fine, moist seed compost. Ensure the compost is well-draining. 
2. Planting Depth: Sow seeds at a depth of 1/4 inch (6 mm) and cover lightly with a fine layer of compost. 
3. Optimal Conditions: Place containers in a warm, bright location such as a windowsill or greenhouse. Maintain a consistent temperature of 18-20°C (64-68°F). 
4. Watering: Keep the compost moist but not waterlogged during germination. Use a spray bottle or gentle watering can to avoid disturbing the seeds. 
5. Germination Time: Seeds should germinate within 10-12 days under ideal conditions. 

Outdoor Sowing 

1. Soil Preparation: Choose a sunny or partially shaded location with moist, well-drained soil. Remove any weeds and loosen the soil with a fork. 
2. Sowing the Seeds: Sow seeds directly into the prepared soil at a depth of 1/4 inch, spacing them evenly. Water the area lightly after sowing. 
3. Thinning: Once seedlings emerge, thin them to a spacing of 5-6 inches apart to allow adequate airflow and room for growth. 

Caring for Mixed Colour Nemesia Strumosa Plants 

• Watering: Water freely during dry periods, especially in hot weather. Ensure soil remains moist but not soggy to prevent root rot. 
• Pinching Tips: Pinch out the growing tips of seedlings to encourage bushier growth and more flowers. 
• Deadheading: Regularly remove spent flowers to encourage new blooms and extend the flowering season. 
• Feeding: Apply a balanced liquid fertiliser every two weeks during the growing season to promote healthy growth and vibrant blooms. 
• Pruning: Cut back longer stems to maintain a neat, bushy shape and encourage secondary flower growth. 

Common Questions About Growing Mixed Colour Nemesia Strumosa 

• Can Nemesia be grown in containers? Yes, Nemesia grows beautifully in containers, window boxes, and hanging baskets. Ensure the container has good drainage and is filled with quality compost. 

• Does Nemesia need full sun? Nemesia prefers full sun but can tolerate partial shade. Plants in sunnier spots tend to produce more vibrant blooms. 

• How long does Nemesia bloom? Nemesia typically blooms from late spring to autumn. Regular deadheading and proper care can extend the flowering period. 

By following these simple steps, you can enjoy a vibrant display of Mixed Colour Nemesia Strumosa in your garden, balcony, or windowsill. This low-maintenance, versatile plant is perfect for UK gardeners looking to add a cheerful array of colour to their outdoor spaces. 

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