2 jarsful of violet blossoms boiling water lemon juice baking soda
Fill any size jars with violet blossoms; fill with boiling water to top, seal and steep overnight. Divide contents of one jar into three containers. Add lemon juice to one. It will turn purple/red; this is your acid indicator.
Add baking soda to the other jar. It will turn green/yellow; this is your base indicator. Pour contents of the other jar into as many jars as you have soil samples to test. Match colors to indicator.
>>From Great Garden Formulas: The Ultimate Book of Mix-It-Yourself Concoctions for Your Garden~ Joan Benjamin and Deborah L. Martin-editors, published by Rodale