My Bobo Hydrangea Blooms Are Not Blooming At The Top

Question

I live in western pa. We have been having 90 degree weather for several weeks with little rain. I have been watering every several days. The blooms are not opening on the ends and they seem to have brown spots on them like dried bugs. Last year I had full beautiful blooms earlier than this year.

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Answer 1

I am seeing signs of bacterial infection. Make sure that the soil dried, completely, down to about 2 or 3 inches between watering. This top soil layer is prone to bacterial and fungal infections from staying too moist for too long without a dry out period.

Depending on your soil type, the soil can appear dry on top but still wet just a little deeper.

I would recommend treating with a fungicide. This article will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

This article will help you with general Hydrangea care:

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm