i'm on my 3rd DP Blueberry grow...
i ordered 20 feminized beans from Dr. Chronic... there are some variations in phenotype... i use 6 plants for each grow... and with my current grow i used 7, 5 of which are very small and runt-like... 2 i would have kept as mothers, they are monsterous, by 2 week veg, they were 4x bigger than the small ones. So if you only get one seed, you could get screwed with a tiny tiny plant, all of the seeds are not the same. the 2 huge plants are now finishing at different times... one is done, one looks like it has 2 weeks left, but its a little bigger...
the smoke is really stoney - makes me sleepy after i burn it, and does last a good while... i dont think the bud smells or tastes anything like blueberries... i work from home on my computer but i dont find BB to be very creative herb, it just makes me want to sit on the couch, or nap. its a decent indica based strain, but i'm a sativa man
growing from clones would solve all of the phenotype problems, but i would make sure to choose a mother from 10 seeds... because 1/2 of them will be small phenotypes. the larger phenos also have really good trichome production - they are completely covered in trichs by the time they get chopped.
here are some pics from the last grow - i havent put any up from the current one yet (which looks much better)
2000watts, in Ebb and Flow system using Advanced Nutrients with a screen of green...
hope that helps...