Q.variegated miniature holly tree has dropped all its leaves
My variegated miniature holly tree has dropped all its leaves. Why? It has been quite happy in the garden for 4/5 years, and it seems to have happened virtually over night.

Certified GKH Gardening Expert
There are many reasons this can happen, but the most common is a water issue. Either the plant gets too mach water or too little water. Have you had a change in how much water is available to the plant? Was it perhaps overwatered at some point this year or are you going through a drought?