HAZESATIVASEEDS

Outdoor success depends largely on matching a plant's origin to the local climate. Because sativa seeds come from lineages adapted to long, warm growing seasons, they perform best in Mediterranean, subtropical, or tropical regions where autumn stays mild well into November. In cooler northern latitudes the long flowering window frequently collides with early frost and persistent rain. Greenhouses or light-deprivation covers give growers in those areas a workable alternative.