1 seed planting seedlings 1-1: paulownia March-April flowering, fruit ripening in October. More than 8 years old should choose the robust growth to fine individual species. When the capsule from yellow to brown, individual cracks can be harvested. Taken back to dry seeds or dried, shell cracking, seeds prolapse. After to the complex, in a dry ventilated indoor storage to prepare for spring planting. Seed quality standards: Clarity 78% -84%, grain weight 0.2-0.4 g, the germination rate of 1 year 70% -90%, 39% -59% germination potential. 1-2 seed treatment: paulownia seed particles is extremely small, seedling management and labor. To enable fast planting seedlings emergence, emergence Qi, the need for seed treatment false bud. Commonly used method is: will be 40-50 degrees Celsius warm water soaking seeds and stir until cooled, soak for 24 hours, the seeds swelling. After removing the bag or put in place Calceolaria mix wet sand, the setting of a greenhouse or a hotbed of germination. Rinse twice daily or several times a day gently flip, when a part of the seed germination Lu Bai can be planted.