How long does it typically take for grounds to fix weeds?

Thanks for Reporting!
In most cases the sidewalk is the responsibility of the homeowner/ or property owner fronting it, in accordance with City Municipal Code Title 10 (you can read the Code here: http://bit.ly/11cZkdr).
If you would like more information or have questions/concerns regarding this, please feel free to call our Streets section at 707-648-4430.

I don't own this property. I'm down the street but it makes the neighborhood look bad. This is a safety issue as it could cause somebody to trip and fall.

Thanks for using SeeClickFix! Understood, sidewalks to the face of curb are the responsibility of the property owner fronting this portion of sidewalk. The growth seen in the photo is property owner responsibility. This issue will be forwarded over to Code Enforcement for citation. If you have any questions of concerns regarding this issue, please call the Maintenance Division at 707-648-5235. Thanks again for using SeeClickFix!

Vince M., Grounds Section assigned this issue to Code Enforcement Division

Thank you for reporting! A Code Enforcement Officer has now been assigned to inspect the possible violation(s). You may visit eTRAKiT, our online tracking system, to view current case information for the Code Violations online at http://web.ci.vallejo.ca.us/eTRAKiT3/ (please allow several business days for the information to upload). SeeClickFix is one of the many tools available to the citizens of Vallejo to report non-emergency issues. We “close” an issue in SeeClickFix once we've acknowledged the complaint; however, this issue is not "Closed" per se; it will remain an "Open" case with us until it is corrected. If there is anything else we can assist you with, please let us know. Thank you for using SeeClickFix!