Q.Eucalyptus baby blue
I have had a eucalyptus baby blue for about a month. It has in the last week gone very brittle with white bark. Is this normal or has something got hold of it?
It may be dead due to transplant shock. This article will help you determine if it is dead or not:
https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm
If it is not dead, treat it for transplant shock:
https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm