How to Sow Snowball Daisy Seeds in the UK 

Snowball daisies are a stunning addition to any garden, producing abundant white, double blooms on tall stems. These short-lived perennials are versatile, thriving in borders, pots, containers, and flower beds. Known for their fragrant flowers and lush green foliage, snowball daisies also have a mat-forming growth habit and will self-seed if left undisturbed. Their attractive, ball-shaped blooms make them ideal for enhancing cottage-style gardens or mixed herbaceous borders. 

When to Sow Snowball Daisy Seeds 

• Indoor Sowing: Start snowball daisy seeds indoors between late winter and early spring (February to April). This gives the plants an early start and extends their blooming period.
• Outdoor Sowing: For direct sowing, wait until after the last frost has passed (typically late spring in the UK, around May). The soil should be warm and workable for optimal germination. 

Step-by-Step Guide to Sowing Snowball Daisy Seeds Indoors 

1. Prepare Containers: Use seed trays or small pots filled with high-quality, well-draining seed compost. This provides the ideal environment for germination. 
2. Sowing the Seeds: Sow seeds at a depth of 1/4 inch (6 mm) and cover lightly with compost. Snowball daisy seeds require light to germinate, so avoid burying them too deeply. 
3. Germination Conditions: Place the seed trays in a bright location, such as a sun-facing windowsill or a greenhouse. Maintain a consistent temperature of 18-21°C (65-70°F). Keep the soil moist but not waterlogged. 
4. Germination Time: Snowball daisy seeds typically germinate within 10 to 15 days. Check regularly and water lightly to prevent the compost from drying out. 
5. Transplanting Seedlings: Once seedlings are over 4 inches tall and have developed several leaves, they can be transplanted to their final growing location. Gradually acclimatise them by hardening off over 7-10 days before moving outdoors. 

Direct Sowing Outdoors 

1. Soil Preparation: Choose a sunny spot with well-drained, fertile soil. Loosen the soil with a rake and remove any weeds or debris. 
2. Sowing the Seeds: Scatter the seeds thinly across the soil or sow in rows spaced 20-30 cm apart. Cover lightly with soil, as the seeds need light to germinate. 
3. Watering: Water the area gently after sowing and keep the soil moist until seedlings appear. Avoid overwatering, as soggy soil can hinder germination. 
4. Thinning Seedlings: Once the seedlings are established, thin them out to a spacing of approximately 15-20 cm to allow proper airflow and growth. 

Caring for Snowball Daisy Plants 

1. Sunlight Requirements: Plant snowball daisies in full sun for the best flower production. They can tolerate partial shade but may produce fewer blooms. 
2. Watering: Water regularly during dry periods, keeping the soil consistently moist but not waterlogged. Established plants are relatively drought-tolerant. 
3. Feeding: Apply a balanced, general-purpose fertiliser once during the growing season to encourage healthy growth and flowering. 
4. Deadheading: Remove spent blooms regularly to prolong the flowering period and prevent excessive self-seeding unless you want the plant to spread naturally. 
5. Overwintering: Snowball daisies are short-lived perennials and may not survive harsh winters. Mulching around the base of the plants in late autumn can provide some protection. 

Common Questions About Growing Snowball Daisies in the UK 

• Can snowball daisies grow in containers? Yes, they thrive in containers, provided the pots have good drainage and are placed in a sunny location. 

• How tall do snowball daisies grow? Snowball daisies can reach a height of 45-60 cm (18-24 inches), making them an excellent choice for borders or as a statement plant in containers. 

• Do snowball daisies self-seed? Yes, snowball daisies have a mat-forming habit and will self-seed if left undisturbed, providing a natural spread for future blooms. 

By following these guidelines, you can enjoy a spectacular display of snowball daisies, enhancing your garden with their charming blooms and delightful fragrance. Perfect for UK gardens, these versatile flowers are sure to make an impact in any setting. 

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