The Fresh Growth On The Ivy And Wisteria Growing Outside Against My House Has Gone Black, Is This Caused By The Frost?

Question

There has been very frosty nights and early mornings, might this be the cause for the fresh growth on the Ivy and wisteria outside growing on my house?

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Answer 1

Yes, it could be the frost, but I think this article will help:
https://www.gardeningknowhow.com/plant-problems/disease/black-spot-fungus.htm