Black D.O.G Indica Dominant Hybrid. By Humboldt Seed Organization is a weighty mixture of two northern California favorites. Blackberry Kush and Emerald Headband. This medium-sized plant expresses dark, nearly black leaves that give way to sticky, dense buds. Its aroma is a mixture of grape, berries, and oil. While the effects tend to be relaxing with just a touch of cerebral stimulation. Black D.O.G. has a rapid flowering time of 48-55 days and has been known to produce a THC profile in the 16-21% range.