brown spot

my newly purchased 30/05/19 hydrangeas (3) RED BARON have not flowered and have now got brown spots that are getting larger can you help i have them singly in pots they have grown about double in size are well watered and fed i also added a 6 month slow feed at planting

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1 Comment To "brown spot"

#1 Comment By BushDoctor On 09/23/2019 @ 11:25 am

It sounds like they may be a little TOO well watered. This sounds like, either, a fungal or bacterial infection.

In either case, a fungicide and removing the infected growth, as well as pruning the shrub at the appropriate time can help.

These articles will give you more information: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm ^[1]

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm ^[2]

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm ^[3]

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URLs in this post:

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

[2] https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm

[3] https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-container-care.htm

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