Weed Ordinances: Aurora vs Centennial
How do weed ordinances rules compare between Aurora, CO and Centennial, CO?
Aurora and Centennial have similar restriction levels.
Aurora, CO
Arapahoe County
Aurora prohibits noxious weeds and overgrown vegetation over 6 inches on developed properties. State-listed noxious weeds must be controlled under the Colorado Noxious Weed Act.
View full Aurora rules →Centennial, CO
Arapahoe County
Arapahoe County Weed Control enforces the Colorado Noxious Weed Act (C.R.S. §35-5.5-101) through its Weed Advisory Board. Property owners must abate listed noxious weeds and keep vegetation under 12 inches. Front Range wildfire concerns drive summer enforcement, especially after the Marshall Fire.
View full Centennial rules →Key Facts Comparison
| Fact | Aurora | Centennial |
|---|---|---|
| Height limit | 6 inches (developed lots) | - |
| State law | Colorado Noxious Weed Act, CRS 35-5.5 | - |
| List A weeds | Must eradicate | - |
| Compliance window | 10-15 days after notice | - |
| Enforcement | Neighborhood Services plus county | - |
| State Law | - | C.R.S. §35-5.5-101 |
| Authority | - | Arapahoe County Weed Board |
| Aurora Limit | - | 10 inches (§22-116) |
| County Limit | - | ~12 inches |
| Lien Authority | - | C.R.S. §35-5.5-109 |
Highlighted rows indicate differences between cities.
Aurora FAQ
What is a List A weed?
List A species, such as myrtle spurge, must be eradicated wherever found in Colorado under CRS 35-5.5. Aurora enforces this on private property.
Can I use any herbicide?
Use products labeled for the target weed and site; avoid applications near storm drains or creeks to comply with Aurora stormwater rules.
Centennial FAQ
What happens if I ignore a weed abatement notice?
Arapahoe County will contract to clear the property and charge the owner 125% of the cost (includes 25% admin fee). The amount becomes a lien on the property collected via tax bill under C.R.S. §35-5.5-109.
Which weeds are mandatory to remove?
State List A (mandatory eradication: myrtle spurge, purple loosestrife, etc.) and List B species designated by the Arapahoe County Weed Advisory Board.
Compare other topics
See how Aurora and Centennial compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool