How to Sow Mixed Colour Sunflower Seeds 

Mixed colour sunflowers are a vibrant variety featuring stunning blooms in reds, browns, oranges, and golds with dark centres. Each pack includes a mix of sizes, with flower heads ranging from 4 to 8 inches in diameter. These multi-headed sunflowers are perfect for garden displays, centrepieces, or vases. Both the flowers and seeds are edible, making them a versatile choice for cooking and decoration. 

When and Where to Sow Mixed Colour Sunflower Seeds 

• Indoor Sowing: Start seeds indoors in pots or trays 6-8 weeks before the last frost. This protects young plants from pests and ensures a strong start. 
• Outdoor Sowing: Sow seeds directly outdoors until 100 days before the first frost. Ensure temperatures remain consistently above 20°C (68°F) during germination. 
• Growing Location: Choose a sunny spot with well-drained soil. Sunflowers thrive in areas that receive full sun for at least 6-8 hours a day. 

How to Sow Mixed Colour Sunflower Seeds 

1. Preparing the Soil: Use fresh compost or well-worked garden soil enriched with organic matter. Ensure the soil is loose and free from weeds. 
2. Sowing Depth and Spacing: Plant seeds at a depth of 1/4 inch (6 mm). Space seeds 12-18 inches apart to allow for proper growth and airflow. 
3. Watering: Water gently after sowing to settle the soil. Keep the soil consistently moist but not waterlogged during germination. 
4. Germination: Germination typically occurs within 7-14 days under optimal conditions. Protect young seedlings from pests, such as slugs and snails, which can damage early growth. 
5. Transplanting: If starting indoors, transplant seedlings when they are 2-3 inches tall. Handle them carefully to avoid damaging the roots. 

Caring for Mixed Colour Sunflowers 

• Support: Taller sunflowers may need staking or other support as they grow. Use bamboo canes or stakes to help stems remain upright. 
• Watering: Water regularly, especially during dry spells. Avoid overwatering, as sunflowers prefer well-drained soil. 
• Feeding: Apply a balanced fertilizer every 2-3 weeks to encourage robust growth and vibrant blooms. 

Harvesting Mixed Colour Sunflowers 

• Flowers: Cut blooms at their peak for use in vases or as centrepieces. Harvest early in the morning for the freshest flowers. 
• Seeds: Allow the flower heads to mature fully. Once the back of the head turns yellow and the seeds are plump, cut the head and dry it. Roast seeds for a delicious snack or plant them for next season. 
• Edible Uses: Both the flower head and seeds can be cooked. Grill the flower head whole or roast the seeds to enhance their flavour. 

Common Questions About Growing Mixed Colour Sunflowers 

• Can mixed sunflowers grow in containers? Yes, mixed colour sunflowers can be grown in large, deep pots or containers. Ensure the container has good drainage and is placed in a location that receives full sunlight. 
• How can I prevent pests from damaging young sunflowers? Protect young plants with slug and snail deterrents, such as organic pellets or a ring of crushed eggshells around the base. Keep the area around the plants weed-free to reduce hiding spots for pests. 
• Do mixed sunflowers require frequent watering? While sunflowers are drought-tolerant once established, they require consistent moisture during germination and the early growth stages. Water deeply but infrequently to encourage strong root development. 
• Will mixed colour sunflowers self-seed? Yes, if left in place after flowering, mixed sunflowers can self-seed and regrow the following year. You can also collect the seeds for controlled planting. 

By following this guide, you can successfully grow mixed colour sunflowers that add vibrant beauty to your garden and provide edible benefits. Enjoy their cheerful blooms and practical uses throughout the growing season! 

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