Greenhouse Growing Extends Season | Forum

Unheated glass adds weeks at both ends of a northern summer without any lighting rig at all. Autos flower regardless of the shading and daylength changes that confuse photoperiods under cover. Climate suitability notes on https://turboautoflowerseeds.com point toward the varieties that handle cool damp air. Ventilation still decides everything, since still humid glasshouses breed mould in dense flowers.