1, cucumber can be planted in spring, summer and autumn, and the sowing time in spring is March-April. Therefore, Tomb-Sweeping Day is also a good time to plant cucumbers. You can choose grain to sow cucumber directly, or you can buy cucumber seedlings for planting. At present, cucumber can be planted in the open air in other areas except the cold areas such as Northeast China and Inner Mongolia. According to different varieties and growth conditions, the whole growth period of cucumber from planting to harvesting is about 90- 120 days. Tomb-Sweeping Day can eat cucumbers in July after sowing. 2. Bitter gourd can also be planted around Tomb-Sweeping Day. The southern region may be advanced to the middle and late March, and the sowing in the central region will be postponed to the end of April or early May. Of course, bitter gourd can also be planted in autumn and August. The growth period of bitter gourd includes germination stage, seedling stage, vine-pulling stage and flowering and fruiting stage. According to the variety and management level, it can be harvested in about 80- 100 days. Similar to cucumber, if it is sown before and after Tomb-Sweeping Day, it can be harvested and eaten in July. 3, loofah loofah can be planted in spring, summer and autumn. Summer sowing time is May-June and autumn sowing time is August-September. Spring sowing time is around Tomb-Sweeping Day (central region), which can be advanced in the south and postponed in the north. Loofah has many uses, which can be eaten or used as a tool to brush pots and bowls. Luffa seeds can also be fried and eaten. Luffa is a short-day plant with a relatively short growth period. According to the variety, growth conditions and management level, it can be harvested in about 50-65 days, and the shortest is less than 2 months. If you start planting in Tomb-Sweeping Day, you can harvest it in June. 4. Plum beans can be planted in spring and summer. As a thermophilic plant, plum beans need suitable high temperature for sowing and germination. Generally, plum beans can be planted when the temperature reaches above 20 degrees. Before and after Tomb-Sweeping Day, plum beans can be planted in southern and central areas with suitable temperature, and sowing in northern areas should be postponed until the end of April or early May. The growth period of plum beans is about 90- 120 days, which is also related to varieties, growth conditions and management level. When sowing, 3-4 seeds can be sown in each hole, and watering and fertilization should be done well. Plum beans have strong fruiting ability. Plant a few trees, which can be eaten for a long time or planted next to your own courtyard wall. 5。 Peas are planted in Spring Festival and autumn. Peas belong to cool plants in the west and are not suitable for planting at high temperature in summer. Sowing can be done around Tomb-Sweeping Day in Huang-Huai-Hai area. There are many ways to eat peas, such as cooking porridge, stir-frying and cutting steamed bread. They are deeply loved by many friends. If there is open space, you can choose to plant them. The growth period of peas is also related to varieties, planting methods, regions and other factors, generally around 70- 180 days. The reason for the big gap is related to varieties. For example, the growth period of early-maturing varieties is only about 70 days, middle-maturing varieties are about 90- 100 days, and late-maturing varieties are about 150- 180 days. 6. Although it is called green beans, it can't be planted all year round, except in winter and spring and autumn. Spring sowing time in southern and central regions can be around Tomb-Sweeping Day, and the northern region can be postponed until the end of April. Green beans are afraid of heat and waterlogging, but they like wet plants. Depending on the variety, growing environment and management level, the growing period is about 80-90 days. If some varieties are early, they can be harvested in about 60-70 days. Therefore, the green beans planted before and after Tomb-Sweeping Day can be eaten in early July.