I don't grow veggies but if I did, I'd opt for as organic as possible (I'd have to do them in containers where I live so that would be doable) but my flowers get amended soil each fall/early spring depending on what and when I'm digging, dividing, moving/removing and planting. I don't go out of my way to buy stuff. I use standard miracle grow, still have some Messenger which I barely ever used--wonder if that stuffs any good now, Super Thrive occasionally and with new plants. I put new aged compost (have to buy it, no place at my apt to compost), mushroom compost, a little peat, greensand as I tend to have some heavy clay areas and I dump a small bag each of perlite and vermiculite into the flower bed. Figure it can't hurt. I also do the scoop of Osmocote in planting holes and depending on the plants water needs I put a little bit of pre soaked water crystals in there too. Always in the bottom of the hole so the roots have to reach for any water stored that they may need.
I've been gardening in the same bed for about 16 yrs now and have tons of earthworms which weren't there in the beginning and even in my containers which I hope tells me I've done something right
