Hole Next To Plant

Question

During the night, for 3 nights, something has dug a hole right down to the roots of my Escallonia rubra. What on earth can it be? I have had the plant for7 months, and it is now in flower.

Answer 1

This article should help:

https://www.gardeningknowhow.com/lawn-care/lgen/lawn-and-garden-holes.htm