water pH and Protekt

[Ray]

Originally Posted by orchids3

If you look at a chart that shows the best nutrient uptake for plants you should see that 7 is the best overall. Higher - some nutrients are taken up less. Lower other nutrients are taken up less. Some plants like it less others much less. Some plants dont seem to care about the differances others do. Plants "do" adapt. Personally I like pH between 6.2 and 7.. None of my plants have said anything yet.

I'm afraid that study does not really apply to epiphytic orchids, and not universally to terrestrial plants: pH & Nutrient Availabilty