I saw on the Dave's Garden site, and some others, about how it's a common practice by some organic-minded folks to lower the pH of soils by adding small amounts of white vinegar into the plant's needed waterings. The general consensus that I've seen averages about 2 tablespoons of vinegar per gallon of water, applied within drip line and slightly farther out, and of course, not on the foliage. Anyone do this? _________________________________________________________________ I've traditionally used organics like cottonseed meal and peat moss for acid-hungry plants like pansy, pink hydrangea, some junipers, boxwood, alberta spruce, dogwood, American redbud, etc... But if the area is too wet (clayey) for that, I've gone with spilt-pea sulfur and /or iron sulfate to lower pH instead. ( Aluminum sulfate for BLUE hydrangeas.) I'm dealing with a range of between 7.3 to 8.0 here... in generally clay-loam soil. Any other ideas?