Too Much Ashes

So this isnt really a question to marijuana growing but I did come across it because of MJ. I had my seeds ready to go in the dirt and I did a ph test and the ph levels in my gardens soil(vegetable garden) is way to high to grow pot and more then likely way to high to be growing vegetables. This is probably from all of our winters wood stove ashes being dumped in there, any ways to bring it down with anything household?
 
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