Why do some perennials get brown spots on their leaves?

Question

I have two bushes where new leaves get brown spots – beginner gardener – advice welcome

• 

Answer 1

This is a fungal infection. Sometimes, they can resolve themselves, but it does help to give them a boost.

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