Very interesting, Eric! There are a few surprises there. I did not know potatoes like it so acid, more even then blackberries. (For some reason they didn't put blueberries on the list, but I assume they would be right there with blackberries and cranberries.) That may account for why my container potatoes have not been real productive. I will acidify this year and see what happens.
Some of it is controversial. They have rosemary in the acid liking column. Here is what I have always known about rosemary and told others:
To grow rosemary in pots, select potting soil with a minimum of peat moss, which is acid, as rosemary likes an alkaline
pH. Add enough sand for superb drainage.
https://www.vegetablegardener.com/item/2 ... w-rosemary
It has worked for me. When I was trying to overwinter rosemary indoors and only had peat soil, I added baking soda to the water to keep it happy. Worked well for me and I had killed rosemary before. But I was also restricting water and misting, so maybe it wasn't really the baking soda.
However, when I saw this, I went looking now and I found people saying about rosemary:
6 - 7.5
6.8 but tolerates up to 8.5
6 - 7.5
about 7/ neutral
So apparently this stuff is not an exact science or it depends on other conditions or it depends on your rosemary cultivar.
Incidentally here's a more comprehensive listing I found:
https://www.gardenexpress.com.au/growing ... guide.html