Q.Camellia Leaf Drop
I have a Camellia bush that appears healthy in every way with beautiful green leaves and well formed buds. However, the leaves are all falling off for no apparent reason. Can you throw any light on this please?

Certified GKH Gardening Expert
This time of year, the likely culprit is lack of humidity. Try placing a humidifier in the room with it or place it on a pebble tray to raise the humidity around it. Here is more information: https://www.gardeningknowhow.com/houseplants/hpgen/raise-humidity-for-houseplants.htm