From beginners to cannabis experts. Indica Stains. On average, though, the bulk of your weed seed bank will be depleted in about five years if no additional seeds are added.  Source: <a href=https://plazapublica.cdmx.gob.mx/profiles/Ariellerrolfson/activity>https://plazapublica.cdmx.gob.mx/profiles/Ariellerrolfson/activity</a>