Correct pH For Patchouli

Looking through the questions and answers on growing patchouli, I saw that two acidity ranges are recommended and was wondering if you could please tell me which is correct.
On one page (https://www.richters.com/show.cgi?page=./QandA/Growing/19980817-3.html)
soil pH of 4.3 to 6.3 is recommended but, on another (https://www.richters.com/show.cgi?page=./QandA/Growing/20050928-1.html),
it is 5.5 to 7.5. Could you clear this up for me, please?

We apologize for the error. It should be pH 4.3 to 6.3.