

The Alaska one North and West are obvious, but there are some islands that cross the date line, making them technically east.
Someone else posted a graphic, but basically Maine is significantly farther east which cancels out the North/South difference of other states.



It will probably be fine. Ammonium nitrate isn’t really needed for a garden, at least not in concentrated blends, unless your soil is fucked. Shitloads of nitrogen just makes plants bigger, which isn’t something you normally want for most vegetables.