Warm rooms that push 30 degrees and stall an indica barely bother most sativas, which evolved under tropical sun and keep photosynthesising happily in conditions that would stress other plants. That suits attic grows or hot climates without air conditioning. Temperature ranges by strain, including a few that actually slow down when nights drop below 18, are noted on https://hazesativaseeds.com alongside the usual stats. Cold is the thing to watch, not heat.
