On April 20, 2025, we welcome Grain Rain, the sixth of the 24 traditional Chinese solar terms and the final one of spring. As an important seasonal marker in the Chinese lunar calendar, Grain Rain carries deep connections with ancient astronomy, agriculture, and folk culture. It symbolizes a key transition in both nature and farming — when rainfall becomes abundant and grains begin to thrive.

What Is Grain Rain?

Grain Rain, or “Guyu” in Chinese, occurs when the sun reaches 30 degrees in celestial longitude. This results in a noticeable rise in temperature and precipitation. As early as the Pre-Qin period, Chinese people observed astronomical changes and natural phenomena to establish this solar term. The phrase “rain nourishes a hundred grains” reflects its agricultural importance — making it a vital period for spring farming and crop growth.

Agricultural Significance of Grain Rain

Historically, Grain Rain served as a critical guide for agricultural activities. In ancient farming texts like Qi Min Yao Shu, detailed records describe essential practices during this time, including rice seedling transplanting, sowing, and field preparation. The increased soil moisture and stable weather patterns make this solar term ideal for ensuring healthy germination and vigorous growth. Today, this tradition continues across many farming regions of China, where Grain Rain signals a busy season of planting and cultivating.

Traditional Customs and Regional Practices

Grain Rain is not just about agriculture — it is also a cultural heritage filled with unique customs across different regions:

1. Tea Picking in the South

In southern China, particularly in tea-producing areas, there is a long-standing tradition of picking tea leaves during Grain Rain. The tea harvested at this time is known as “Grain Rain Tea”, valued for its rich nutrients, vibrant green leaves, and delicate fragrance. Drinking this tea is believed to clear internal heat, improve vision, and ward off negative energy.

2. Sea Worship in Coastal Regions

In coastal fishing communities, the Grain Rain Festival is a time for sea worship ceremonies. As warmer waters attract fish to shallow areas, fishermen pray to the sea god for safety and abundant harvests. This ancient custom not only reflects reverence for nature but also expresses hope for prosperity and protection at sea.

3. Eating Chinese Toon in the North

In northern China, it is customary to eat Chinese toon shoots during Grain Rain. These tender buds are packed with vitamins and aromatic oils, making them a popular seasonal delicacy. Locals often say, “Chinese toon before the rain is as tender as silk”, a testament to both the taste and nutritional value of this springtime vegetable.

4. Scorpion-Banishing Talismans

Another traditional practice, especially in northern and northwestern China, is the use of “scorpion-banishing talismans”. These paper charms, printed with a rooster holding a worm, symbolize protection against insects and pests as summer approaches. Although rooted in folk beliefs and early medicine, the cinnabar used in these talismans had real detoxifying properties, demonstrating early awareness of pest control and disease prevention.

Nature’s Beauty During Grain Rain

The Grain Rain season brings about some of the most vibrant natural landscapes in both the north and south:

• In the south, willow catkins float in the wind, cuckoos sing, peonies bloom, and cherries ripen — painting a lively picture of late spring.

• In the north, Grain Rain marks the end of frost, the start of spring thunder, and the emergence of new life.

From an agricultural perspective, this is the golden period for plowing, sowing, fertilizing, and irrigation. Fields across the country become scenes of energetic labor, embodying the hope for a bountiful harvest in the coming months.

Experience the Harmony of Nature and Culture

As a solar term rich in historical meaning, practical value, and regional culture, Grain Rain offers a unique lens through which to understand China’s deep-rooted connection with nature. Whether you’re a cultural enthusiast, global trader, or simply curious about Chinese traditions, Grain Rain reminds us of the enduring importance of seasonal rhythms in shaping agriculture, health, and community life.

Let’s celebrate this beautiful season when spring rain nourishes all grains, and experience the renewal and vitality it brings to both the land and the heart.