I can see that this is an old thread, but it happens that I just bought a 50 liters bag of plagron growmix. It also happens that I am in custody of some vertigo autoflowering seeds from Paradise and also tao haze and tao matic from Top Tao. I also have a tao mix with unknown seeds. Since this is my first autoflower grow, I will use the mix for trial and error as a first run and maybe crossbreed a little bit in the same time just to get a bigger supply of auto seeds.
When I can see clearly that my plants are doing ok, I will germinate the vertigo, tao matic and tao haze (the first main goal is to do some cross breeding with the vertigo). For this occation I will use the plagron growmix. This is not going to happen yet before another 2-4 weeks, and the end result will not be finished until late January.
As a first time autoflower grower with only experience from regular strains, I need to log and take photos throughout the whole process. I will use the product line of soil nutes from (terra vega + terra flores including rhizotonic, cannazym, booster, PK13/14 and also an amino accid supplement from Bio Green).
I can post an update here when my plants are finished if there's still interest.