Improper temperature and humidity management are some of the most common mistakes made in winter greenhouses. One major issue is not providing enough insulation, which can lead to freezing temperatures that damage plants. Poor ventilation is another mistake; without adequate airflow, humidity can build up, promoting mold and mildew growth.
Overwatering is also a frequent error, especially in colder conditions, as plants need less water during the winter and excess moisture can lead to root rot. Some gardeners may underestimate the importance of light, relying too much on natural daylight and not using grow lights to supplement the shorter days. Another mistake is failing to monitor temperature fluctuations, which can lead to inconsistent growing conditions that stress plants.
