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🌿 Landscaping Rules/Weed Ordinances

Weed Ordinances: Palo Alto vs San Jose

How do weed ordinances rules compare between Palo Alto, CA and San Jose, CA?

Palo Alto has fewer restrictions than San Jose.

Palo Alto, CA

Santa Clara County

Some Restrictions

Palo Alto requires property owners to control weeds and dead vegetation that create fire hazards or public nuisances. Hillside parcels in the VHFHSZ face mandatory annual weed abatement inspections.

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San Jose, CA

Santa Clara County

Heavy Restrictions

The County's Weed Abatement Program covers all unincorporated areas and requires owners to keep grass and weeds below 6 inches, clear roadways, and protect structures from combustible vegetation. The unincorporated compliance deadline is April 1, and non-compliant parcels are abated at the owner's cost.

View full San Jose rules β†’

Key Facts Comparison

FactPalo AltoSan Jose
Weed abatement seasonSpring inspection, summer deadline-
Applies toVHFHSZ parcels and nuisance lots-
Non-complianceCity abates and bills owner-
Hillside focusFoothills west of I-280-
HerbicidesMust follow CA pesticide law-
Coverage-All unincorporated areas
Max height-6 inches
Deadline (unincorporated)-April 1
Structure clearance-30 ft minimum
State authority-Health & Safety Code 14875-14922
Example fees (2026)-$296 inspection; $953 non-compliant

Highlighted rows indicate differences between cities.

Palo Alto FAQ

When is the weed abatement deadline?

Typically early summer, before declared fire season. Check the annual Palo Alto Fire notice mailed to hillside owners.

Are tall wildflowers considered weeds?

Ornamental native plantings can be acceptable if maintained and thinned, but dry grass and star thistle must be cut regardless of appearance.

San Jose FAQ

Who enforces weed abatement in unincorporated Santa Clara County?

The County's Weed Abatement Program covers all unincorporated areas. It inspects parcels, issues notices, and can force-abate non-compliant properties at the owner's expense under California Health and Safety Code sections 14875-14922.

How do I get off the weed abatement watch list?

A property generally must demonstrate three consecutive years of compliance with the program's standards before it is removed from the Weed Abatement Program.

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