Growing outdoors at northern latitudes favours indica genetics because they usually finish by late September, before frost and constant rain set in. Mountain landrace descendants handle cool nights reasonably well, but bud rot in a wet October is still the main killer. Regional grow logs sorted by latitude and harvest date are shared on https://kushindicaseeds.com, which is useful for picking a strain that suits a short season. Starting seeds indoors a few weeks early makes a bigger difference than any strain choice.