Q: My clematis are getting brown spots on the leaves. I'm guessing this is a fungus? How do I treat. I also noticed the lower leaves of my Annabelle hydrangea with little dark spots, what do I do about that?
Your plants have been attacked by fungal diseases and need to treated with a fungicide, such as Bayer All-In-One as recommended in the Yardener.com Tool Shed click on Fungicides for Ornamentals. Use the same product on your Hydrangea. It would help if when planting clematis you bury the root ball 2 inches deeper in the soil then it was in the pot. Best And Happy Yardening, Nancy.