Temperature and humidity control are also vital when cultivating jack herer autoflower seeds indoors. This strain prefers a stable environment with temperatures ranging between 70-85°F during the day and slightly cooler at night. Humidity should be kept around 40-50% during the vegetative stage and lowered to 30-40% during flowering. Using a hygrometer and a reliable ventilation system can help maintain these conditions, preventing mold and other issues that could harm your plants.
