Help! Invasive St. Augustine! · Perma Resilience

Help! Invasive St. Augustine!

Good morning! We are in Orange County CA, zone 9A. I'm wondering if anyone has found anything that will stop St. Augustine grass? I don't mind letting things grow wild in a food forest way, but the St. Augustine chokes out everything. We have about a half acre in the city (front yard space) that we've planted more than a dozen fruit trees, kiwis and elderberries. We've put down cardboard and newspaper and deep mulched it, but it keeps coming through. It is impossible to pull it out because of the underground roots. I'd love to hear ideas on how to handle this invasive beast!

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