Sacha muttered:

Yesterday we went to Buckland Abbey and the box hedges there are all slowly
dying and look absolutely dreadful. It is a great shame because real effort
has been put into making the sort of herb garden the long-ago monks would
have had and last time we went it looked lovely. What we wondered and don't
know, is whether new, healthy box can be re-planted in the same areas. We
imagine not but does anyone happen to know?

They can't have been 'boxus semper virens' then ( BTW, that is the biggest
misnomer in the business, mine all go bronze and then die despite the care I
lavish on them.