Thinking about the predicted wheather though I'm in SE London .
I'm not sure whether hardy = will cope with frost ?
I have an artemisia oriental limelight in a tub but not really sheltered and although it's described as H6 ,I'm sure I remember it wilting during an earlier cold snap .
And what about pittisporum wrinkled blue ?
Would covering them in the cheap thin white covers ( they say fleece ) that I got from Poundland be sufficient ?