Nirvana's outdoor marijuana seeds can be grown successfully in the out-of-doors or in greenhouses. Of course, they are suitable for indoor growing as well, but they tend to become bigger than indoor marijuana strains. This can be circumvented by pruning or topping, so outdoor seeds really are all-round fabulous strains.
For the best results, we recommend that you germinate the marijuana seeds indoors, let them develop for a few weeks and transplant the marijuana plants outside only when night frost has disappeared (April-May in the northern hemisphere).