I'm no soil expert but I think if you are in a hurry it may not work as it takes time to break down ingredients for plants to use..try it...they will probably do fine
Forgot to mention. .they don't recommend reusing soil..I'm sure they want to sell you more. .but if you amend the soil with nutes you are not organic .
No need to be nervous about kind soil with autos. .for my second grow I chose jock horror autos in 3 gal containers and after 5 weeks they are doing great. .sorry but pics were deleted
I am on first grow with northern light..I use organic soil from Kind Soil..no nutes..just water..fantastic results and so easy..A little pricey but good service and results