It is quite normal for tree species to continuously renew 25% of their leaves. This can be provided by the transport from our nursery to your home. Give the tree some rest and time; the leaves will grow back on their own.

If the leaves discolor over a longer period of time, the tree is probably suffering from a lack of light. With light deprivation, the tree makes long and thin branches and gets limp leaves. If the vein is still green and the mesophyll has yellowed, then it is suffering from a lack of nutrition