Acidic or Alkaline ? If the Hydrengas in the garden have pink blooms, is the soil...

If the Hydrengas in the garden have pink blooms, is the soil caustic or alkaline?

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On alkaline soils almost adjectives the blue Hydrangea varieties turn pink or red-purple.
On acid or independent soils pink varieties may turn blue or purple. Yes.

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alkaline soil


(Natures little pH tester)... In acid soil the blooms will be blue, pink flowers in alkaline soil, and white contained by neutral. The flower colors may be controlled by adding aluminum sulfate to the soil prior to budding to produce or preserve blue flowers; or by liming or adding quantities of superphosphate to the soil to produce the pink ones.
http://www.thegardenhelper.com/Hydrangea...

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Answers:    It really depends on the variety of the hydrangea. There are some varieties that are pink contained by alkaline soil & blue in acid soil. Acid soil enrich the flower color, plain white varieties are a purer white, pink or 'red' varieties will be richer/darker pink & never turn blue. You can lug a soil sample to a garden center for a soil test or buy a cheap soil conducting tests kit, or start using an acid fertilizer & see what happen.

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