Whats a good flowering plant to test its growth rate with different levels of pH?

Question

I have to do a project for school on flowering plant growth. I'm wondering what flower i can use that would react the most to different levels of pH of its water.

Answer 1

Beans, peas, corn, radishes all germinate fairly quickly and are readily available from garden centers.  You might want to use both a dicot (beans, peas, radishes) and a monocot (corn, wheat, rye) in your tests.