Saturday, November 14, 2009

A gardening question: Rhododendrons I believe like acid soils. If my soil PH is 7.9. Is that Acidic? Good?

7.0 is neutral. Above 7 basic, below 7 acidic.

A gardening question: Rhododendrons I believe like acid soils. If my soil PH is 7.9. Is that Acidic? Good?
the ph scale is from 1 to 14,all the substances which are 1 to 6 in the ph scale are acidic.all the substances which are 8 to 14 are bases. a substance with a ph of 7 is neutral .
Reply:That is a good soil level for them.
Reply:Not acidic. Under 7.0 is. Use Miracle Gro for azaleas, rhododendrons, and camellias.
Reply:I think that's basic, actually. 7.0 is perfect PH - low scale is acidic, high scale is basic, from what I remember from school way back when.
Reply:7.9 is slightly basic. If you want to acidify the soil, you could add aluminum sulfate and some cottonseed meal.


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