Posted: 12/08/2016 at 17:08
Caesalpina is a common shrub in the Languedoc, in France where I garden part of the year. I think they are fairly short-lived - at any rate they get tall and lanky quite quickly. They grow here where we have at least three very hot months of drought before the autumn rains come in October and everything springs into growth again. They come quite easily from seed.
I would hate to see anything growing through it, but would sow seed and then replace it once the new plants were big enough.
Passion flower is a definite no no - it strangles anything and anyone that gets in it'sp[ath and is almost impossible to erradicate as the seeds lie dormant in the soil seemingly for ever.