Sta-green flower and vegetable potting soil?

First time grower. It was the only soil I had so I went ahead and planted the germinated babies I had in starter cups yesterday. So it has perlite and peat moss which is good for water drainage and root development but it also has sta-green plant food with slow release nitrogen which lasts up to 9 months? It says it only has .05% of nitrogen on the bag but I'm not sure if this will effect the taste of the buds when it's time to flush then harvest. I'm also not sure if this could possibly keep them from growing as I dont think you're supposed to feed them until they're a couple weeks old. I need some reassurance as I will be planting these in the ground once they're big enough to be able to withstand mother nature. Also, how much soil should I use when transplanting them outside and do you think I should switch it up and plant them with a different soil or would that only hurt them?

Anybody?...

I'm also using sta green soil. Planned a couple of seedlings in this soil, they seem to be doing fine. I try not to over water to prevent too many nutes from being released. But do far so good no burning issues yet. Also I picked most of the branches and things out to keep the soil loose.