冰雪严寒

Explanation: Cold: extreme cold. Ice and snow, cold weather. 　　Source: WU Bo-Xiao "small garden in mind," "Although the season by season, there are already all kinds of vegetables planted too late, and sometimes received only species of this kind of vegetable dishes; But in addition to ice cold in the winter, spring, summer and autumn the year, the garden always often struggle of several vegetables and green manure in the competition. "