We at Nirvana Shop have picked a number of strains especially for you which can be grown successfully in the open air.
For the best results, we recommend that you germinate the outdoor marijuana seeds indoors, let the outdoor seeds develop for a few weeks and transplant the plants outside only when night frost has disappeared. Outdoor marijuana plants tend to become bigger than indoor strains, so if you're growing in your own garden or in a greenhouse, this has to be circumvented by pruning or topping.
Of course, the results of growing marijuana outdoors may vary per climate. If you're living in an extremely hot climate, you might be able to harvest multiple times a year.