I have always utilized the ground for my gardens and amended with compost. If you can "grow grass", it can be amended was my policy. It was about utilizing the moisture and adding organic material to make it work. Get a living soil with worms and keep it fed. Put more organic material back in than you took out. This requires gathering leaves, grass clippings, kitchen scraps....basically a huge compost pile. The problem was it never seemed to be mature/composted in rhythm to put it back..
I had a wasted space of old asphalt with good afternoon sun. This meant watering because roots could not get down to utilize the moisture. I also had problems with growing peppers because of a high ph soil.
This is what I did....utilizing dead/decaying logs, leaves, grass clippings and some free straw bales. All the info pointed to an immature bed that needed to break down for a year or so to be utilized. To overcome that I topped the bed with 10 inches of 2 year old leaf mold on one half and 2-5 yo Alpaca manure on the other half. I have 40 bucks into it and maybe 3 days labor.
This is how I did it cheap.







Don't mind the deer head....it was topped with leaf mold

Back half with Alpaca manure



Flood proof

Thriving

Hidden gems of hard to grow supper hots pepper





Long pods of sweets




And big toms the first year

