I have a fig tree in my garden for about 10 years or so, it was planted and trained against our garage wall, in a hole we made in the pavement, it is not even a big hole and still the fig tree thrives in it and we get many ripe figs each year. And the tree grows like mad, I have to prune it several times in Summer.
I once got a small pot with blooming hyacinths and I planted it under the fig tree, but after a while it got company of a taxus which selfseeded and a euphorbia which selfseeded. And everything is thriving in that small hole so I think ; life is good under that fig tree.
MY FIG TREE AND ITS COMPAGNONS
MY BEAUTIFUL BLUE HYACINTHS