Pack of 20 seeds.
Before planting, fertilize with rotting manure and water just enough moisture. Then plant the tuber seeds on the ground, gently pressing the seeds to stick to the soil so that when watering the seeds do not drift. Legume seeds are placed horizontally and staggered, seeds from 8 to 10cm apart. Then sprinkle a thin layer of powdered soil on the seeds, then use finely chopped straw to cover the beds and water them.

Must be watered regularly 1-2 times / day, ensuring the soil is always moist so that the seeds have good conditions to germinate. About 7-10 days after sowing the tubers will germinate and produce leaves. When the seeds grow for 15-20 days, prune the seedlings if they grow too thick.
Tubers will be harvested after about 4-5 months after planting. At the time of harvesting, the bulbs will lose most of their leaves and the leaves will turn pale yellow.