I have been growing organic vegetables for years in high raised beds that have 20 yrs of compost and organic chicken manure plus dark soil I gather from under my pine and juniper trees.  I never use agricultural chemicals and I water with well water. I would never think of using a pesticide or herbicide.  I know what you mean about strong/robust - I bought some organic plant food but had no need to even use any of it.  Here in NM you can grow 12 plants a household now and all my friends & neighbors are growing but mine were the best (all my friends agreed).  You cannot beat good soil that you make yourself.  My chickens only eat organically too - so no chemicals there either.  I found that I really can't overdo the chicken manure.  Lots of rabbits running around here to and when it rains, I find clumps of rabbit manure that ran down the hills and settled in indentations on my land - I gather it up too for the boxes.
I've been doing lots of baking for my girl friends.  I have two good friends who are very ill - one with MS and the other with Ehlers-Danlos syndrome and it feels good to supply them with cookies for their pain.  I grew a CBD plant too, Blue Shark, so I can add some to the mj butter for pain.