I grew Nirvana Blackberry which someone above said is the same thing you are asking about. Mine were great yielders, check out the pictures below. Smoke is very strong from a bong and makes me cough. Vaporized in a Volcano the harshness is gone and the berry flavor really comes through. For me the high is potent, and a bit couch-locky. I seem wide awake but glued to this chair wasting time on forums. On nights I smoke Blackberry I get to bed on time and sleep through and wake up feeling great. So I would recommend this to persons seeking relief from anxiety and insomnia. It's also great for appetite stimulation which I don't need. I compensate by eating a light diner knowing I'll have the munchies later
In the first picture the flash washed out the purple. In the second picture shot in natural light you can see the purple I got on the tops of the colas. The last 2 pictures were from about 3½ weeks into flower. By the end of flower they stunk to high heaven with the smell of fermenting tropical fruit. Indoor growers will need odor control for this strain. I topped them at 12 inches and they bushed out real good. The branch and leaf and bud density were such that I had to take the cola's first and then give the rest of the plants another 10 days to ripen. These lower buds gave the best smoke, better than the tops, with sweeter flavor and a stronger stone.
The buds on the left came from the tops and the ones on the right came from the lower plants 10 days later. The tops are denser with more red hairs and some purple in places. The ones on the right are greener but with more "sugar" frosting from the extra 10 days under the light.
I would recommend this strain to a friend.