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Why Are My Hydrangea Blooms Green?

Ask the Expert: Hydrangea bloomed but flowers are green

i purchased my hydrangea last early summer when it was already in bloom and the flowers were pink and stayed pink all season
This year it is blooming a lot of flowers but they staying green

the only thing I did different this season is use HollyTone which is a fertilizer for acid loving plants.  Donna

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Comments

  1. Donna,

    First I need to know if you have Hydrangea macrophylla or Hydrangea quercifolia.

    Hydrangea macrophylla produce blue or pink blooms and the color can be changed from season to season by changing the PH of the soil. To turn them blue you make the soil more acidic (often with Aluminum sulfate) and to turn them pink you make the soil more alkaline(often with hydrated lime). If this is the type you have the blooms maybe young and will soon turn to the appropriate color. Unless you add enough of the fertilizer to really change your soil PH you will probably get a lavender-pink color this year. Of course this all depends on when and how much fertilizer you applied.

    If you have Hydrangea quercifolia commonly known as Oakleaf Hydrangea, the blooms start out a light green then change to white. This white color is held for a very long time and then turns to a dusty rose color. It would be too early for any Oakleaf hydrangea to show the pink coloring.

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