Mr.Nice Black Widow is a most infamous strain that since 1994 has won a number of awards, this includes the High Times Cannabis Cup in 1995, and has also acquired acclaim from most corners of the globe - and rightly so.
It's a pedigree is of a parentage that combines a Brazilian Sativa with a South Indian hybrid.
Basically, it is White Widow changing its colours like its company.
Indoors 10 weeks of flowering will be necessary to realize the large resin production.
In the northern hemisphere expect harvest around September/October, having planted as late as June. However, there is a chance that rain could lessen the expected yield.
A highly recommended strain for amateur breeders - the male being preferable.