Lawn care made just for Boulder, CO
Lawn plans customized to your Boulder, CO lawn and delivered to your door.
Boulder, CO – meet custom DIY lawn care
Between the Flatirons and your front yard lies the challenge of Colorado's unique growing conditions. Sunday makes lawn care simple for Boulder homeowners with a personalized approach that works with your local environment.
Sunday analyzes your specific Boulder, CO property using soil data, climate patterns, and satellite imagery to create a lawn plan that's just for you. We know Boulder's clay-heavy soil, high altitude sun exposure, and seasonal moisture patterns require special attention.
Unlike traditional lawn care that relies on harsh chemicals and one-size-fits-all formulas, Sunday delivers targeted nutrients made from natural ingredients that work with your lawn's biology. Our products arrive at your door exactly when your Boulder lawn needs them, with clear instructions anyone can follow.
Thousands of Colorado homeowners have already seen the difference in their lawns with Sunday, as our Sunday lawn care reviews show. Ready to see what Sunday can do for your lawn care in Boulder? Get started with your Custom Lawn Plan today.
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!
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 Boulder, Colorado
| Typical lawn size in Boulder | 2,819 sq. ft. |
| Dominant grass types in Boulder | Cool season grasses like Kentucky bluegrass, perennial ryegrass, and tall fescue |
| Typical soil pH for Boulder lawns | 7.4 which is slightly basic |
| Typical organic matter in Boulder lawns | 5.86% |
| Boulder lawn soil composition | 39% sand, 33% silt, 28% clay |
| Key soil nutrients in Boulder lawns | Phosphorus: 104 ppm, Potassium: 330 ppm, Calcium: 3,098 ppm, Iron: 158 ppm |
Boulder lawns average 2,819 square feet and feature cool-season grasses that thrive in Colorado's climate. The soil makeup - a mix of sand, silt, and clay - creates good growing conditions when paired with proper lawn care practices.
The slightly basic pH of 7.4 means Boulder yards need specific fertilizer timing and nutrients. A soil test can help you track these levels for better results.
Key steps for lawn care in Boulder:
- Follow a seasonal care plan based on cool-season grass needs
- Water deeply but less often to encourage deep root growth
- Mow at 3-4 inches to help grass handle Colorado's dry spells
- Add organic matter to improve clay-heavy areas
- Time fertilizer applications for spring and fall growth periods
The good organic matter content (5.86%) shows Boulder soils can support healthy grass growth. Check out our lawn care guides for more tips on maintaining your Colorado yard.
Sunday lawn care reviews near Boulder, CO
Lush green lawn
I need to mow, but this shows how lush and green my lawn looks after the Sunday treatment. I believe I'm in my third year. I'm very pleased.
Mark
Boulder, CO
Lawn Care in Boulder
We are very happy Sunday customers in our second year of Lawn Care Program. After a rough winter we decided to over-seed using your Fescue Mix. Bare patches gone, lawn is much healthier. Easy to use, our cat's much happier with your products. Of course, 12 inches of Spring rain didn't hurt either.
Geof
Boulder, CO
Beautiful lawn
My lawn is lush and green with the Sunday plan, even with Colorado's hot dry summers and fairly minimal watering!
Mark
Boulder, CO
Highly Recommend! Living in a
Highly Recommend! Living in a high altitude desert, Sunday has kept my yard green and healthy all summer long.
Shane
Longmont, CO
Lawn is 90% better!
My lawn was plagued with weeds and pale grass, it is now uniform, weedless an dark green.
Denise
Boulder, CO
Lush green lawn
I need to mow, but this shows how lush and green my lawn looks after the Sunday treatment. I believe I'm in my third year. I'm very pleased.
Mark
Boulder, CO
Lawn Care in Boulder
We are very happy Sunday customers in our second year of Lawn Care Program. After a rough winter we decided to over-seed using your Fescue Mix. Bare patches gone, lawn is much healthier. Easy to use, our cat's much happier with your products. Of course, 12 inches of Spring rain didn't hurt either.
Geof
Boulder, CO
Beautiful lawn
My lawn is lush and green with the Sunday plan, even with Colorado's hot dry summers and fairly minimal watering!
Mark
Boulder, CO
Highly Recommend! Living in a
Highly Recommend! Living in a high altitude desert, Sunday has kept my yard green and healthy all summer long.
Shane
Longmont, CO
Lawn is 90% better!
My lawn was plagued with weeds and pale grass, it is now uniform, weedless an dark green.
Denise
Boulder, CO
Lush green lawn
I need to mow, but this shows how lush and green my lawn looks after the Sunday treatment. I believe I'm in my third year. I'm very pleased.
Mark
Boulder, CO
Lawn Care in Boulder
We are very happy Sunday customers in our second year of Lawn Care Program. After a rough winter we decided to over-seed using your Fescue Mix. Bare patches gone, lawn is much healthier. Easy to use, our cat's much happier with your products. Of course, 12 inches of Spring rain didn't hurt either.
Geof
Boulder, CO
Beautiful lawn
My lawn is lush and green with the Sunday plan, even with Colorado's hot dry summers and fairly minimal watering!
Mark
Boulder, CO
Highly Recommend! Living in a
Highly Recommend! Living in a high altitude desert, Sunday has kept my yard green and healthy all summer long.
Shane
Longmont, CO
Lawn is 90% better!
My lawn was plagued with weeds and pale grass, it is now uniform, weedless an dark green.
Denise
Boulder, CO
Lush green lawn
I need to mow, but this shows how lush and green my lawn looks after the Sunday treatment. I believe I'm in my third year. I'm very pleased.
Mark
Boulder, CO
Lawn Care in Boulder
We are very happy Sunday customers in our second year of Lawn Care Program. After a rough winter we decided to over-seed using your Fescue Mix. Bare patches gone, lawn is much healthier. Easy to use, our cat's much happier with your products. Of course, 12 inches of Spring rain didn't hurt either.
Geof
Boulder, CO
Beautiful lawn
My lawn is lush and green with the Sunday plan, even with Colorado's hot dry summers and fairly minimal watering!
Mark
Boulder, CO
Highly Recommend! Living in a
Highly Recommend! Living in a high altitude desert, Sunday has kept my yard green and healthy all summer long.
Shane
Longmont, CO
Lawn is 90% better!
My lawn was plagued with weeds and pale grass, it is now uniform, weedless an dark green.
Denise
Boulder, CO
Let's get started
Boulder, Colorado FAQs
How to grow grass in Boulder, Colorado
| Most common grass types in Boulder | Cool-season grasses |
| Best way to grow grass in Boulder | Seeding |
| Recommended grass species for Boulder lawns | Kentucky bluegrass, perennial ryegrass, tall fescue |
| When to start growing grass in Boulder | Spring from May 15 to June 5, or fall from September 17 to October 8 |
Boulder lawn care starts with choosing the right grass and timing. As a cool-season grass region in Colorado, the best approach is seeding your lawn during two main periods: spring from mid-May to early June, or fall from mid-September to early October.
For the best results with lawn care in Boulder, focus on these steps:
- Pick grass types that match your yard conditions using our seed finder tool
- Choose quality cool-season grass seeds like Kentucky bluegrass, perennial ryegrass, or tall fescue
- Time your seeding during cooler weather when soil temperatures support good germination
- Water new seeds consistently to keep soil moist until grass establishes
The semi-arid climate of Boulder means regular watering is key during grass establishment. Learn more about seeding and how to grow a healthy lawn in your specific area. With proper timing and care, you can grow and maintain a thriving lawn that stands up to Boulder's unique growing conditions.
Boulder, CO lawn care blogs
Warm-season Grass vs. Cool-season Grass: Choose the Right Grass for Your Lawn
Learn the differences between warm-season and cool-season grasses to select the best type for your yard. Expert tips from Sunday.
How to Sharpen Mower Blades
Regularly sharpening your mower blades can be easy to overlook. After all, if you’re able to cut your grass, does it really matter how sharp your blades are? But dull blades can have a major effect on your lawn’s health, and even impact your wallet. Here’s a look at how to keep them sharp.
Growing a Warm-Season Lawn in the West
Learn how to grow a strong lawn in the west with warm-season grasses including bermudagrass, zoysiagrass, St. Augustinegrass, Kikuyugrass, buffalograss, bahiagrass, and paspalum.
Growing a Cool-Season Lawn in the West
Learn how to grow a strong lawn in the west with cool-season grasses including Kentucky bluegrass, annual and perennial ryegrasses, tall fescue, and fine fescue.
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.
413Sunday yards inBoulder
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