small green bush

small green bush

Observation - small green bush - UK and Ireland. Description: I have this small bush in my back garden, it doesn't seem to grow much, seems to tolerate not being watered! It's in a sunny place. Doesn't flower. Quite woody stems. About 40cm across and 30cm high. Any idea what it might be?

I have this small bush in my back garden, it doesn't seem to grow much, seems to tolerate not being watered! It's in a sunny place. Doesn't flower. Quite woody stems. About 40cm across and 30cm high. Any idea what it might be?