Plant count is a bigger decision with sativa seeds than with compact hybrids. A sea of green with many small plants flipped early controls the stretch and finishes on a predictable schedule, while two or three large trained plants use fewer seeds and produce bigger colas but need more veg and more attention. The space planning article on https://hazesativaseeds.com (https://hazesativaseeds.com) works through both approaches for a standard tent and lands on four to six medium plants as the sweet spot for most tall lines. Local plant limits often make the decision for you.