Pongamia Millettia Pinnata blooms for the first time from April to June every year, the fruit matures from August to October of that year, and blooms for the second time from October to November, and the fruit matures from April to May of the following year. The first flowering volume is more than the second flowering. When the pods turn from green to brown and mature, they can be picked from trees or collected under the forest. The pods are dried and the seeds are collected. Seeds with full grains, no defects or deformities should be used for seedling cultivation. The seeds can be stored for about 1 year under low temperature, shade and relatively dry conditions.

The best sowing season for sowing is March-April in early spring, and autumn sowing is also available. The seeds after the germination can be sown on the seedbed first, and then transplanted into the container bag after the seedlings grow to a certain height, or the seeds after the germination can be directly sown in the container bag. After sowing, it should be covered with fine soil, and the thickness should be such that the seeds cannot be seen. The seeds will start to germinate within 7 days after sowing, and the germination rate will reach 97% within 10 days. 
Ongamia Millettia Pinnata takes 24-35 days from sowing to seedling emergence, and about 30-48 days for seedling formation. When the temperature is low in autumn and winter, plastic greenhouses are used for cultivation, which is conducive to heat preservation and moisture retention. After the temperature rises in spring, the plastic film can be removed and replaced by open-air cultivation. Water regularly after sowing, and cover the seedbed with straw or shade nets to keep moisture, keep the humidity above 85%, and remove the cover after the seedlings are fully grown. Pongamia Millettia Pinnata has strong adaptability to water. Keeping the nursery moist for a long time is conducive to the growth and development of seedlings. Occasional irrigation is also okay. Pay attention to the nursery to avoid water shortage and drought. Promote seedling growth. Pay attention to the sterilization of bactericidal drugs such as carbendazim to ensure that the seedlings will not get sick and grow healthily.