Blackberry Auto Feminised Seeds – from breeder FastBuds Seeds. This is from the genetics of Blackberry Kush autoflowering. A very easy to grow and grows well in Greenhouse, Indoor, and Outdoor. Flowering time takes 8 weeks from germination. Flowering yield takes Indoors: 500-600 gr/m2 & Outdoors: 70-300 gr/plant and yet produces a wonderful plant height of 70-110 cm. This strain produces an effect of Body, Cerebral, Relaxing.