GrowCNanswered grow question 4 years ago I think you need to get the timing right to have a real chance outside. Auto's can handle continuous sun so I'd time the 10-12 week lifespan of the plant to coincide with your longest days of the year. Have the summer solstice (June 21) occur about six weeks into your grow so maybe plant in early may. And make sure the plant gets full sun, try not to have anything shading it.
Depending on your weather you may need to tent or put a hot house over the plant early in the season to protect it from cold nights. Cool nights won't kill the plant but it will really slow it's growth. If you can keep the soil temperature above 15c and closer to 20c the growth rate should pick up with good light.