When temperatures drop, ensure your tulsi plant is shielded from the cold. Consider moving it indoors to a warm location, away from chilly drafts or frost. A sheltered spot near a sunny window can provide the necessary warmth.

During the winter season, the frequency of watering should be decreased. Check the soil regularly and water only when the top inch feels dry to the touch. Overwatering in colder months can lead to root rot, so allow the soil to dry slightly between waterings.

Despite the shorter days, tulsi still requires a good amount of sunlight. If the plant is indoors, place it near a south-facing window to maximize exposure to sunlight. Consider rotating the pot occasionally to ensure all sides of the plant receive equal light.

Regular pruning is crucial during winter to remove any dead or yellowing leaves. Trim them off gently to encourage the plant to channel its energy into healthy growth.

Shield your tulsi plant from cold drafts, which can be detrimental to its health. Ensure it's placed in a location where it won’t be exposed to chilly breezes from doors or windows.

If the plant remains outdoors, consider mulching the soil around the base of the plant. Mulch acts as insulation, protecting the roots from extreme temperature fluctuations during winter.

Indoor heating systems can cause the air to become dry, which may affect your tulsi plant. Increase humidity levels by placing a tray of water and pebbles beneath the pot. This provides moisture as the water evaporates, creating a more favorable environment for the plant.

If you decide to fertilize during winter, use a diluted, balanced liquid fertilizer. However, it's essential to reduce the frequency and strength of fertilization because the plant's growth slows down in colder temperatures.

Be vigilant for any signs of pests or diseases. Inspect the plant regularly for common issues such as aphids, whiteflies, or fungal infections, which may become more prevalent during winter.

Ensure there's sufficient airflow around the plant, particularly if it's indoors. Proper air circulation can help prevent the development of fungal problems that might arise due to increased humidity levels indoors during winter.