Landscaping Rules in Hillsboro, OR (2026)
4 verified landscaping rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Grass Height Limits
Hillsboro requires property owners to maintain vegetation. Overgrown grass and weeds trigger code compliance action.
Hillsboro Grass Height Limits
Some RestrictionsHMC 6.16.020 & 6.28.010
Tall Grass, Weeds, and Roadside Trees HMC 6.16.020 & 6.28.010 requires the cutting and removal of noxious vegetation, such as blackberries, and grass longer than 12 inches. Property owners are also responsible for right-of-way property adjacent to theirs. Your trees must be trimmed 8 feet above sidewalk level and 15 feet above street level. Any shrubbery must not impede sidewalk areas. Visit ou...
Tree Trimming
Hillsboro requires property owners to maintain trees for clearance over sidewalks (8 feet) and streets (14 feet).
Hillsboro Tree Trimming Rules
Some RestrictionsHMC 6.16.020 & 6.28.010
Tall Grass, Weeds, and Roadside Trees HMC 6.16.020 & 6.28.010 requires the cutting and removal of noxious vegetation, such as blackberries, and grass longer than 12 inches. Property owners are also responsible for right-of-way property adjacent to theirs. Your trees must be trimmed 8 feet above sidewalk level and 15 feet above street level. Any shrubbery must not impede sidewalk areas. Visit ou...
Tree Removal & Heritage Trees
Hillsboro regulates tree removal through its development code. Significant trees and street trees may require approval before removal.
Hillsboro Tree Removal Regulations
Some RestrictionsWater Restrictions
Hillsboro follows regional water conservation guidelines. Mandatory restrictions may apply during summer drought. Efficient irrigation is encouraged.
Hillsboro Water Restrictions & Landscape Watering Rules
Some RestrictionsLooking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Landscaping Rules in Washington County →