If it blew into my $100 bill farm, and I could not possibly be expected to know some random $100 bill out the thousands I put there is yours, then yes I should

If it blew into my $100 bill farm, and I could not possibly be expected to know some random $100 bill out the thousands I put there is yours, then yes I should be allowed to keep it. When seeds blow onto a farm, that isn't lost property, that's nature and it's indistinguishable from it not happening. You can't expect a farmer to notice stray seeds and turn them in to lost and found.