Landscaping Rules in Boulder, CO (2026)
8 verified landscaping rules for Boulder, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Grass Height Limits
Boulder enforces maximum grass and weed height. Overgrown properties subject to code compliance action and city abatement at owner’s expense.
Boulder Grass Height Limits
Some RestrictionsTree Trimming
Boulder may protect certain tree species. Street trees are city property. Heritage trees may require permits for removal.
Boulder Tree Trimming Rules
Some RestrictionsTree Removal & Heritage Trees
Boulder regulates tree removal on private property through permits and size thresholds. Street trees are city-managed and cannot be removed by residents.
Boulder Tree Removal Regulations
Some RestrictionsWeed Ordinances
Boulder enforces weed abatement for fire prevention and neighborhood maintenance. Colorado Noxious Weed Act (CRS §35-5.5-101) applies statewide.
Boulder Weed Ordinances
Some RestrictionsWater Restrictions
Boulder enforces mandatory watering schedules through the city water utility. Odd/even address watering days, no watering 10 AM to 6 PM. Xeriscape rebate programs actively promoted.
Boulder Water Restrictions & Landscape Watering Rules
Heavy RestrictionsRainwater Harvesting
Boulder rainwater collection is limited by Colorado law. HB 16-1005 allows up to two 55-gallon barrels (110 gallons) per household for outdoor use only.
Boulder Rainwater Harvesting Rules
Heavy RestrictionsNative Plants
Boulder may encourage or require native and drought-tolerant landscaping. Some areas restrict traditional grass lawns in favor of water-efficient alternatives.
Boulder Native Plant & Xeriscape Rules
Few RestrictionsArtificial Turf
Boulder generally permits artificial turf installation with some requirements for drainage, appearance, and base preparation.
Boulder Artificial Turf Regulations
Few RestrictionsLooking for Boulder County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Boulder city rules.
Landscaping Rules in Boulder County →