depends if you're planting straight into the ground or into pots. Also strain type, growing technique, weather, and sun exposure will all play a role.
a long time ago, in a galaxy far far away.. i saw a mexi brick seed get over 8.5ft tall. had it been properly tended to it may have only reached a bushy 6ft.
even if your in 5 gallon buckets sativas will still grow huge. i've had plants 13 feet tall that grew in 5 gallon buckets. of course they all went to mold because it was planted in a damn swamp.