Winter is a critical period in agricultural production for cold protection, warmth retention, and dormancy management.

Winter is the season with the lowest temperatures of the year, generally referring to the period between the Start of Winter and the Start of Spring. At this time, the sun's altitude angle is low, daylight hours are short, and the ground loses heat quickly. Most parts of China experience noticeable temperature drops, and the north is often accompanied by frost and snowfall.

Low temperatures, dryness, and insufficient light are the main climatic characteristics of winter. Most flowers and fruit trees enter a dormant or semi-dormant state, with growth basically coming to a standstill; overwintering crops such as winter wheat and rapeseed are in the stage of root establishment and seedling hardening, storing nutrients for green-up and growth the following spring.

For households that grow flowers, winter care centers on insulation and cold protection. Warmth-loving flowers such as gardenia and clivia should be moved promptly indoors to a sunny spot, and watering should follow the principle of rather less than more, with water temperature close to room temperature, to avoid long periods of cold, wet roots causing root rot. Rooms with heating have dry air, so attention should also be paid to proper ventilation and misting to increase humidity, preventing dry leaf tips and yellow leaves.

Winter is also an important juncture for farm management. Measures such as orchard cleanup and disinfection, whitewashing tree trunks, earthing up and mulching, and applying sufficient base fertilizer, if done in advance, can significantly reduce freeze damage and lower the pest and disease base for the coming year. An environment with stable indoor temperatures is also suitable for small farming tasks such as sprouting beans and tray sowing and seedling raising, which is just right for making early preparations for spring planting.