Lawn Care in Westminster, CO Built for Dry Summers
Westminster lawn care means working with dry summers and cold winters. Your grass needs a plan that respects both.

Lawn care in Westminster built for Colorado's dry side
Westminster sits in the rain shadow of the Rockies, where summer sun bakes the soil and winter cold tests every blade of grass. Your lawn lives in a cool semiarid climate that demands smarter care, not more products.
Sunday builds custom lawn plans using satellite imagery of your actual yard and local climate data. We've analyzed over 300 soil samples from Westminster lawns, so we know exactly what your grass is up against.
Why Westminster yards need a local approach
- Alkaline soil locks up nutrients without the right balance
- Cool-season grasses thrive with fall seeding windows
- Clay-heavy ground needs deep watering, not daily sprinkles
- Freeze-thaw cycles call for strategic aeration timing
How it works
Get yard analysis
Answer a few easy questions about your yard and location to help us create your unique plan.
Open your box
Your first box—including a free soil test—will arrive right when your lawn needs it.
Spray it on
Attach the custom fertilizer to your hose and spray. Then relax and wait for your next box!
Lawn care for Westminster, Colorado
| Average lawn size | 2,252 sq ft (based on 300+ local soil tests) |
| Dominant grass type | Cool-season grasses |
| Typical soil pH | 7.6 (slightly alkaline) |
| Organic matter | 5.8% |
| Soil composition | 32% sand, 34% silt, 34% clay (clay loam) |
| Key nutrients | Potassium 405 ppm, phosphorus 133 ppm, calcium 3,965 ppm |
Westminster lawns come with a few quirks worth knowing. The clay loam soil holds water well (sometimes too well), and that slightly alkaline pH means some nutrients play hard to get. The good news? Your soil's already rich in organic matter, so you're starting ahead.
Local lawn care starts with knowing your clay
That clay-heavy soil can get compacted fast, especially after Colorado's freeze-thaw cycles. Aerate in fall to give roots room to breathe. And here's a common misstep: overwatering. Your soil holds moisture longer than you'd think, so deep, infrequent watering beats daily sprinkles every time. For more seasonal tips, check out our lawn guides.
Sunday lawn care reviews near Westminster, CO
Lush, Green and Easy!
Sunday helped to make our lawn look its best and I was only able apply the first package due to a fire at our house. My yard was green, and lush and it could not be easier to apply. It really is as simple as attaching it to your hose and applying. We are looking forward to this next year when we can hopefully complete the full program!
Christine
Westminster, CO


Love the products.
Love the products.
Patrick
Westminster, CO
Show stopping yard!
Neighbors and friends stop by asking us what we use on our yard. We are very pleased with the results!
James
Westminster, CO
Sunday Every Day
Sunday is easy to use and is customized to my lawn. Since using Sunday, I have had neighbors comment on how great the lawn looks.
Richard
Westminster, CO


green grass in colorado is possible!!
This is my 2nd season using Sunday & I highly recommend it! I knew next to nothing before I started, and the lawn was in awful shape! The support staff happily answered any concerns I had, and the difference is night & day from before starting Sunday. thank you!! (added 4 ‘before Sunday’ pictures too)
Darin
Westminster, CO
Improves a struggling lawn
Sunday products have improved my lawn. My yard looks greener and areas that have struggled and are patching are gradually filling in.
Jeremy
Westminster, CO
Lush, Green and Easy!
Sunday helped to make our lawn look its best and I was only able apply the first package due to a fire at our house. My yard was green, and lush and it could not be easier to apply. It really is as simple as attaching it to your hose and applying. We are looking forward to this next year when we can hopefully complete the full program!
Christine
Westminster, CO


Love the products.
Love the products.
Patrick
Westminster, CO
Show stopping yard!
Neighbors and friends stop by asking us what we use on our yard. We are very pleased with the results!
James
Westminster, CO
Sunday Every Day
Sunday is easy to use and is customized to my lawn. Since using Sunday, I have had neighbors comment on how great the lawn looks.
Richard
Westminster, CO


green grass in colorado is possible!!
This is my 2nd season using Sunday & I highly recommend it! I knew next to nothing before I started, and the lawn was in awful shape! The support staff happily answered any concerns I had, and the difference is night & day from before starting Sunday. thank you!! (added 4 ‘before Sunday’ pictures too)
Darin
Westminster, CO
Improves a struggling lawn
Sunday products have improved my lawn. My yard looks greener and areas that have struggled and are patching are gradually filling in.
Jeremy
Westminster, CO
Let's get started
Westminster, Colorado FAQs
How to grow grass in Westminster, Colorado
| Recommended grass species | Kentucky bluegrass, perennial ryegrass, tall fescue, fine fescue |
| Best establishment method | Seeding (preferred for cool-season lawns) |
| Spring seeding window | May 15 to June 5 |
| Fall seeding window | September 17 to October 8 |
Westminster's alkaline soil and dry climate make cool-season grasses like Kentucky bluegrass and tall fescue solid picks, but they'll need a little extra love to thrive. Fall seeding gives roots time to settle before summer heat arrives.
Fall planting beats the Front Range heat
Aim for mid-September through early October when soil temps drop but frost hasn't hit. Work comite into your soil to counter alkalinity, and water deeply but less often (soggy roots are the number one rookie mistake here). Find premium grass seed or the right grass for your yard.
Westminster, CO lawn care blogs

How To Deal With Summer Water Restrictions
As more areas face drought and water shortages, irrigation restrictions are becoming more and more common. What do you do if you are under watering restrictions?

Lawn Care During Drought: How To Keep Your Grass Alive
Discover Sunday's science-backed approach to lawn care during droughts to help your lawn survive and conserve precious water resources.

Cool-Season Lawn Care Guide
A month-by-month guide for cool-season lawns. Learn what to do in spring, summer, fall, and winter to keep fescue, bluegrass, and ryegrass healthy year-round.

How to Train Your Lawn to Use Less Water
Learn how to train your lawn to use less water and prep for drought and heat stress before summer starts.
Join your Sunday neighborhood
Check out how many of your neighbors are already making an impact! Every home that switches to Sunday helps make your neighborhood a better place for people, pets, and the planet.