Question on potassium fertiler

I know this question has been asked before, but i just am curious

1. Is molasses a good organic source of potassium

2. If not then what's a good organic source for potassium

3 Finally if you check my post https://www.rollitup.org/organics/200007-need-opinion-organic-mix.html

Do you think the soil mix I am using will have plenty of all the nutrients N-P-K

Please let me know and share your knowledge with me

kelp,seaweed................

molasses is a good source of organic potassium
wood ash is a more concentrated source, must be used with caution so as not to raise ph too much