New planted Contorted Filberts’ leaves are turning under on the edges is this normal?
Certified GKH Gardening Expert
This can be normal as it is acclimating. Can you include a photo? I would apply dolomitic lime and wettable sulfur just in case. This will treat, and prevent further infection when used each spring. This article will give you more information on their care: https://www.gardeningknowhow.com/ornamental/trees/contorted-hazelnut/contorted-filbert-tree.htm
A newly planted tree can show signs of stress; curled leaves, yellowing leaves and leaf drop.
Provide daily watering for the first 2 weeks.