The effect that you describe is called leaf marcescence; it鈥檚 the trait of deciduous and refers to retaining plant parts after they (the parts) are dead and dry. It鈥檚 not clear why some trees and shrubs do this. Normally, the leaves come 鈥渦nglued鈥 (not the technical term) and fall off in autumn. Sometimes an early cold spell may interrupt the leaf drop. Reduced sunlight might inhibit it, causing leaves to remain attached. There are other possibilies, but know that when new growth appears in spring, it will release the leaves and you will forget it ever happened.
The effect that you describe is called leaf marcescence; it鈥檚 the trait of deciduous and refers to retaining plant parts after they (the parts) are dead and dry. It鈥檚 not clear why some trees and shrubs do this. Normally, the leaves come 鈥渦nglued鈥 (not the technical term) and fall off in autumn. Sometimes an early cold spell may interrupt the leaf drop. Reduced sunlight might inhibit it, causing leaves to remain attached. There are other possibilies, but know that when new growth appears in spring, it will release the leaves and you will forget it ever happened.