Hydrangeas - Knowledgebase Question

Marbury, Al
Question by darrencox
June 12, 2010
I am told that adding lime to my soil will make my blue hydrangeas pink.I did that and got purple flowers,does that mean I added to much lime or not enough

Answer from NGA
June 12, 2010


It takes a while for the lime to mellow the soil so you may have applied too late in the season, or not applied quite enough. You can see a change coming though. The purple color is mid-way between blue and pink. If you apply lime again next year, you should get pink flowers. You can add lime in four-ounce increments until you reach the color of pink you desire. You need to try and raise your pH to 6.5. Depending on your soil texture and how acid your soil was to begin with, this can be a long process, taking up to 2 growing seasons.

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