When can I plant trees after spring?

Twenty-four solar terms are the climatic laws summed up by astronomers and people in ancient China in their life and production practice, which appropriately reflect the changes of temperature, phenology and rainfall throughout the year, and have indispensable guiding significance for people to arrange farming and sericulture activities on time. By Qingming, the temperature is getting warmer and the rainfall is increasing, which is a good season for spring ploughing and spring planting. Therefore, Qingming is an important solar term in ancient agricultural production. An agricultural proverb says, "Before and after Tomb-Sweeping Day, point melons to grow beans" and "Planting trees is not as good as Tomb-Sweeping Day".