Q.The Leaves On My Bay Tree Are Not A Vibrant Glossy Green Colour Instead They Are All Very Dull And Starting To Turn Brown.
This problem with the leaves is also happening to all new growth. The tree was planted from a tub and into the earth over 10 years ago and this is the first time the tree has developed this symptom. The tree is almost 30ft tall and is planted in a border with no other trees planted near to it and the soil is free draining.
Certified GKH Gardening Expert
It could be a fungal infection or pest invasion. Also, bay trees don't like a lot of water or wind. You may be having a wetter winter. Here are some tips that should help:
https://www.gardeningknowhow.com/edible/herbs/bay/bay-tree-winter-care.htm
https://www.gardeningknowhow.com/edible/herbs/bay/bay-tree-diseases.htm
https://www.gardeningknowhow.com/edible/herbs/bay/dealing-with-pests-on-bay-trees.htm
https://extension.unh.edu/blog/2018/03/how-can-i-get-rid-brown-soft-scale-my-bay-laurel