Safe Greenhouse Night Temperatures for Your Plants
Keep hardy greens at 40°F or warmer and tender crops at 50°F overnight. See how to measure cold spots and protect plants when a greenhouse loses heat.
Category Heating & Ventilation
Keep greenhouse temperatures and humidity under better control with practical guides to heating, cooling, vents, fans, shade cloth, insulation, and seasonal climate management.
Cool a Greenhouse Naturally With Two Simple Vents
A high roof vent, low intake, automatic opener, and shade netting keep a greenhouse cooler without fans or power. Follow this setup for steady airflow.