Birch Tree Seed
100 pcs per package.
How to grow:
Put the seeds into 40 OC water for 24 hours.
Put the seeds into wet sands for germination. ( Generally it take more than 40 days. )
Move it into soil after it sprouts.
Germination temperature: 20-25 oC
Germination time: 40 days
Optimum Growth temperature: 10-25 oC
Spacing : 20 * 20cm