Most sativas are tall and straight, with skinny, dim-environmentally friendly leaves. Several of the varieties need extended vegetative development periods just before flowering, due to the slightness of the temperature versions this close to the equator. Some landraces will need about 20 weeks of vegetative development just before they flower. https://zanzibar-weed37934.qodsblog.com/34827981/zanzibar-weed-fundamentals-explained