Strain
It's hard for me to say anything about the variety. This grow didn't go well, and because I can rule out other factors, I assume it was due to the soil. The next one will be better.
In the end I got very dense and hard buds, but not many and of normal size. However, I must say that I managed to break one of the branches not once but twice - and it bounced back and regrew that area and produced nice buds, even on the twice-broken branch.