The local climate has an average temperature of around 13.5°C and an annual rainfall of about 1,300 mm. In winter, the northwest monsoon blows, but the amount of snowfall is extremely small, and it is the area with the least amount of rainfall in the prefecture. Also, the first frost is in late October and the last frost is in late April, and depending on the year fruit trees may suffer late frost damage, but the area is generally warm and the environment is suitable for growing crops. It has long hours of sunlight in winter and is suitable for outdoor cultivation. Cultivated varieties have been repeatedly planted with soft varieties and hard varieties based on the needs of the time and ease of production, and have changed to planting mainly yellow-core varieties that meet the needs of current consumers. The characteristics of the yellow core type are that the leaf color inside the Chinese cabbage is strong, and the sweetness is stronger than that of the white core type.
Most autumn and winter hakusai currently in circulation are of the yellow core type. In addition, the main varieties of spring Chinese cabbage are Cream No. 2 Chinese cabbage (Watanabe Seed Co., Ltd.) and Kikunishiki Chinese cabbage (Tohoku Co., Ltd.). The biggest feature is that the inside color of the bulb is also strongly yellow.It reaches the proper harvest time in about 60 days after planting. The leaf color is slightly dark green, the grass is slightly upright, and the number of outer leaves is small, so it can be cultivated densely. The balls are bullet-shaped, and the body and buttocks are well stretched and have a voluminous feel, and each ball weighs about 2.5 to 3 kg and is of good quality). There are Naomi Chinese cabbage and yellow gokoro Chinese cabbage.