Land Plants - invasive

Italian Arum (Arum italicum) on Feb 6, 2020

Submitter has sample
EDRR Status: Local expert notified

Description of specimen

An ever widening patch of Italian Arum -- it just gets bigger and bigger. I have tried digging and had someone spray with a non-toxic herbicide. It's back.

The blackberry I pay to have dug up every other year and there is just more of it.