PenguHBanswered grow question 3 years ago 8 plants in 120x120 is going to be packed as hell - if you are a total newbie and want an easy, steady grow I would recommend going for 4 plants to start with or it will quickly become pretty hard to manage your grow.
I would personally recommend Quick One, Blueberry (and all Blueberry hybrids, they are usually called Blue Something or Somethingberry) and Do-Si-Dos.
These are very resistant, easy to grow and grow pretty damn fast - and if you decide to follow my advice and go with 4 plants, you will not even need to LST them. Blueberry genetics usually have a pretty good plant/yield ratio with pleasant effects (flavour, aroma, appearance and power). My only tip for you: do not go too crazy on water. It's the biggest mistake you can make. In fact, it is healthier for your plants to get less water than to be overwatered! Best of luck buddy!