Rose Bush Problem

Question

Can you explain why my rose bush has gone like the photo in 2 days

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Answer 1

They can be a little finicky in container, but I would chalk this up to diseased soil, or soil that has been left wet and gone bacterial.

Vigorous fungicide treatment will be necessary, ACCORDING TO ALL LABELS ON THE PACKAGING. This article will help with fungicide use:

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

https://www.gardeningknowhow.com/ornamental/flowers/roses/container-roses-growing-roses-in-pots.htm

Answer 2

You may be watering the leaves instead of the soil and helping spread fungal diseases like black spot, etc.