The rooibos tea richly contains copper, iron, zinc, manganese, magnesium, potassium fluoride and other mineral substances. The long-term drinking can help alleviate and treat insomnia, fidgety, headache, constipation, nervous, joint and pain symptoms such as high blood pressure and stomach fatty liver. The rooibos tea needs the condition of a sandy, acid and loose soil. It requests rainwater enough. And its seeding time is between March. Then in august it will transplant in farm management. From seedling transplantation, it will need 18 months time to harvest. It can harvest 2-3 times. After that, the land must again be ploughed. After 5 years, it can be grown again. It is not easy to get and it is really healthy for the body and the eyes. You could prepare some in your office.