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acidifying soil with magnesium sulfate

Posted by molk Wa state (My Page) on
Mon, Jun 21, 10 at 13:24

Can magnesium sulfate be used to acidify the soil for blue hydrangeas? My plant is potted. Thank you


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RE: acidifying soil with magnesium sulfate

  • Posted by jean001 z8aPortland, OR (My Page) on
    Mon, Jun 21, 10 at 22:56

Short answer: No.


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RE: acidifying soil with magnesium sulfate

I don't know about potted plants nor what kind of hydrangea you have (not all hydrangeas will turn blue, no matter what you add), but for my Nikko Blue hydrangea, planted in the ground, I add aluminum sulfate to turn it blue.

Kate


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