What are the solar terms for growing beans in the open air in Beijing?

Generally, seedlings are raised in March in spring and sown in early April.

Kidney bean is a high-yield vegetable with strong adaptability and high yield. Generally, seedlings are raised in March and planted in early April. Bean is a summer vegetable, and every family can grow this kind of open-air bean in summer. In rural areas, every family will grow some vegetables, especially common vegetables like beans. Every family in the village will plant a little, and the fruit can't be eaten in the peak season. Many people keep them.