Growing paper flowers (Xerochrysum bracteatum), also known as strawflowers, from seed is a rewarding process. Here's how to do it:
1. Sowing the Seeds:
- Sow the seeds approximately 1mm (1/16 inch) deep. They need light to germinate, so don't bury them too deeply.
2. Soil and Moisture:
- Keep the soil consistently moist, but avoid overwatering, which can lead to rot. The soil should never be completely dry or waterlogged.
3. Germination:
- Seeds typically germinate within 7-14 days.
- Maintain a soil temperature between 10-20°C (50-68°F) to optimize germination.
4. Transplanting:
- Once the seedlings have developed their first true leaves and are large enough to handle (usually around 5-10cm or 2-4 inches tall), they are ready to be transplanted to the garden.
- Harden off the seedlings by gradually exposing them to outdoor conditions for a week or two before transplanting to their final location. This helps them acclimate and reduces transplant shock.
5. Location and Care:
- Choose a sunny location with well-drained soil for planting.
- Space the plants appropriately according to the variety.
- Water regularly, especially during dry periods.
- Deadhead spent flowers to encourage continued blooming.
By following these steps, you can successfully grow beautiful paper flowers from seed.