Posted September 22, 2026

Beginning October 1, 2026, all lawn watering and overhead spray irrigation are prohibited until further notice due to ongoing drought conditions and low reservoir storage. Denver Water projects water supplies could drop significantly before the 2027 runoff season, making conservation essential.

Homeowners may still water trees, shrubs, and perennials using a hand-held hose with a shutoff nozzle or low-volume, non-spray irrigation such as drip systems. Spray irrigation is not allowed. Annuals and vegetable gardens may be watered using these methods until the first frost.

Denver Water also recommends occasional hand-watering of trees and shrubs during warm winter days (above 40°F) when conditions are dry.

The restrictions are intended to protect long-term water supplies while allowing residents to maintain important landscape plants. Customers are also encouraged to consider replacing portions of traditional lawns with drought-tolerant ColoradoScape landscapes, which require less water and are better suited to Colorado’s climate.

Preparing for the October 1 Restrictions

Before September 30:

• Shut down or winterize automatic irrigation systems.
• Make sure hoses and shutoff nozzles are ready.
• Check drip irrigation systems.
• Complete any final lawn watering.

Beginning October 1:

• Let lawns go dormant.
• Hand-water trees, shrubs, and perennials as needed.
• Use drip or other low-volume, non-spray irrigation.
• Do not use spray irrigation.

Looking Ahead to 2027:

• Consider replacing portions of your lawn with ColoradoScapes.
• Research available rebates.
• Explore landscape options with a professional.
• Begin planning and budgeting for landscape changes.