Q.My Clematis Leaves Are Shrivelling You
I planted it last year and the same thing happened but it came back this year and looked really healthy and started to grow quickly but it has now stopped growing so fast and the bottom leaves are starting to shrivel up. See picture for
Certified GKH Gardening Expert
This stems from a soil borne infection. This is, likely, due to the heavy nature of the soil.
Attracting or adding earthworms after a fungicide treatment can help.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis.htm
https://www.gardeningknowhow.com/composting/vermicomposting/benefits-of-garden-worms.htm
https://www.gardeningknowhow.com/composting/vermicomposting/creating-worm-beds-in-gardens.htm