It seems to be coming back in a big way (though for some families and generations it never left!). When I was reading around for the article I came across a charming piece about Prince Charles and the huge area that has been left to 'stumpery', probably at Highgrove. Apparently it is organised chaos and quite wild and lovely. Prince Phillip, on seeing it, wondered around, couldn't see what was what and is supposed to have said something like "So when are you going to burn this lot then?"
Be still my heart - all that lovely mix time and 10-star accommodation for the insects! Well, I hope Prince Charles just smiled and found use for another log somewhere.
I am not sure that stumpery is good for the balcony 'garden', but it is a place to put some interesting and exchangeable pots if you have a garden, and dappled to deep shade.