Commercial landscape maintenance in Boulder.

Boulder is the outlier on our list in two directions at once, and both of them get misreported.

First: there are no mandatory drought restrictions

The City of Boulder runs its own water system — Betasso and 63rd Street treatment facilities, drawing from Barker Reservoir, North Boulder Creek, Carter Lake, and Boulder Reservoir. It is not a Denver Water customer, and Denver Water's Stage 1 rules do not apply here.

Boulder declared a Drought Watch in April 2026 and, after evaluating supply, explicitly stated that mandatory water restrictions were not necessary. The two-days-a-week guidance you may have heard — commercial and multifamily on Tuesday and Friday — is voluntary and recommended, not required.

What is mandatory in Boulder is the year-round water-waste rule, and it's enforceable:

• No sprinkler lawn watering between 10 a.m. and 6 p.m., May 1 through September 30.
• No spray onto sidewalks or streets.
• Shutoff nozzles required on hoses.
• Prompt leak repair.
• Exceptions: hand-watering, drip, new plantings for their first 30 days, food production, sports fields, and ditch or well water.

And then there's the thing that actually costs you money: Boulder assigns every account an annual irrigation water budget, and exceeding it moves you into higher-tier billing. That's not a restriction — it's a rate structure, and it means overwatering in Boulder is punished economically rather than legally. For a large commercial property, staying inside the budget is worth real money, and staying inside it requires knowing what you're actually applying. That's an audit.

See Irrigation Management.

Second: Ordinance 8721 changes everything

This is the story nobody is telling Boulder property managers, and it's the most consequential landscape rule on the Front Range.

Boulder Ordinance 8721 passed January 8, 2026 and took effect March 7, 2026. It adds a regulatory Landscape Manual and an Approved Tree and Plant List, and it goes far beyond Colorado's state turf law:

• Nonfunctional turf is prohibited on commercial, industrial, public, and institutional property, and in public rights-of-way.
• Cool-season grasses — Kentucky bluegrass, tall fescue, perennial rye — are banned except in functional turf areas like sports fields and parks. Read that again. The default commercial lawn grass of the entire Front Range is not permitted on new Boulder commercial landscape outside of genuinely functional turf.
• Drip irrigation is mandatory for non-turf areas. Permanent automatic irrigation is required for all landscaped areas.
• Minimum planting density: one tree and five shrubs per 1,500 square feet of lot area.
• Junipers have been prohibited since August 1, 2025, for wildfire risk.
• Landscaping installed before March 7, 2026 is grandfathered and may be maintained as-is — unless a project or site modification triggers compliance.

That last clause is the one to plan around. Your existing turf is safe until it isn't. The day your property does a redevelopment, a site modification, or a landscape project that trips the code, the median full of bluegrass becomes a compliance line item.

Confirm the current requirements and the exact compliance triggers with the City of Boulder before you scope any site work. We're describing the ordinance, not interpreting it for your specific project — that's a conversation for you, your architect, and the city.

What this means for how we maintain Boulder property

We maintain grandfathered landscape as grandfathered landscape — properly, at the right mowing height, on an efficient schedule, with the irrigation audited so you stay inside your water budget.

We plan every enhancement to the ordinance. If you're replacing plant material, it comes off the approved list. If you're touching a non-turf area, it goes on drip. If a project is going to trigger compliance, you should know that before you commit to it, not after.

We look hard at the nonfunctional turf now. Boulder property with medians, islands, and setback strips of bluegrass is holding a compliance liability and an operating cost at the same time. Converting it voluntarily, on your schedule, with a phased budget, is dramatically better than converting it under a code trigger on someone else's timeline.

Boulder's grounds, and its soils

Boulder is a commercial property manager's market, not an HOA market. The inventory is research and tech campuses, federal laboratory and institutional property, R&D and flex office parks like Flatiron Park and Boulder Junction, the Gunbarrel flex and industrial belt, a historic downtown retail core, and light industrial. Institutional and public property is precisely the category Ordinance 8721 now restricts.

On the soils: Boulder's clay is heavy and alkaline, with pH commonly in the 7.5 to 8.2 range. That matters practically, because at high pH iron, manganese, and zinc lock up chemically and become unavailable to plants — which is why iron chlorosis (yellowing leaves with green veins) shows up on irrigated turf and trees here even when everything else looks fine. It's a soil chemistry problem, not a water problem, and throwing more water at it makes it worse.

Species selection matters more than fertilizer here. See Native Plants for Front Range Commercial Properties and Native & Xeriscape Management.

Snow is Frontier Snow Care. Tree work is Frontier Tree Care.