yo, germinate any time in april,grow them inside til theyre about 6 inches tall? or until u think they can handle the shit summer, cos ur in scotland finnishing time is dodgy-its all genetic,indicas generally have an earlier harvest end of september mayb and sativas usually dont make good plants for our climate but there are early sativas widely available. let it get as much sun as possible, the nothside of ur garden/location. if u have difficulty find a seed company phone number online and theyl burn the ear off ye!