I live in a homeowner association and the board is blaming pyracantha for cracks on the walls. There are cracks on the walls without pyracantha too so we believe this is a bum wrap. The pyracantha has been growing against the walls for nearly 50 years and is beautiful. We homeowners do not believe pyracantha has caused these cracks because cracks are everywhere in our neighborhood. help ! how invasive is pyracantha?
Pyracantha species are considered invasive in some places but I've never heard of the damage you describe on walls.