Oh dear All you can do is advise on the proper action and then do what she wants - but she can't blame you if it never looks right - we'll be your witnesses
ah o worries
cut it back to 3 - 4 inches shorter and narrower than you want, then give it a trim mid summer and by this time next year it'll be lovely and neat
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Oh dear
All you can do is advise on the proper action and then do what she wants - but she can't blame you if it never looks right - we'll be your witnesses 
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
ah o worries
cut it back to 3 - 4 inches shorter and narrower than you want, then give it a trim mid summer and by this time next year it'll be lovely and neat