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Lawn care made just for Longmont, CO

Lawn plans customized to your Longmont, CO lawn and delivered to your door.

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    Longmont, CO – meet custom DIY lawn care

    Nestled against the Rockies with 300+ days of sunshine, Longmont lawns face specific challenges. That's where Sunday comes in.

    Sunday is a personalized DIY lawn care subscription that takes the guesswork out of growing a healthy yard. We analyze your Longmont, CO property using soil data, climate patterns, and satellite imagery to create a plan that works with your lawn's actual needs.

    Our technology accounts for Longmont's clay-heavy soil, Front Range climate patterns, and local water restrictions to deliver exactly what your grass needs, when it needs it. Unlike traditional lawn care that relies on harsh chemicals and one-size-fits-all approaches, Sunday uses effective, plant-based nutrients tailored to your specific yard.

    Many Colorado homeowners have switched to Sunday - just check our Sunday lawn care reviews to see why lawn care in Longmont is changing for the better.

    Ready to see what Sunday can do for your lawn? Get your Custom Lawn Plan today.

    How it works

    A laptop computer with Sunday quiz opened

    Get yard analysis

    Answer a few easy questions about your yard and location to help us create your unique plan.

    Sunday shipment and products on a lawn

    Open your box

    Your first box—including a free soil test—will arrive right when your lawn needs it.

    Sunday fertilizer being sprayed from a hose

    Spray it on

    Attach the custom fertilizer to your hose and spray. Then relax and wait for your next box!

    Lawn care for Longmont, Colorado

    Typical lawn size in Longmont 2,149 sq. ft.
    Dominant grass type in Longmont Cool season grasses like Kentucky bluegrass, perennial ryegrass, and tall fescue
    Typical soil pH for Longmont lawns 7.7 which is slightly alkaline
    Typical organic matter in Longmont lawns 5.01%
    Longmont lawn soil composition 43% sand, 36% silt, 22% clay
    Key soil nutrients in Longmont lawns Phosphorus: 129 ppm, potassium: 379 ppm, calcium: 3,736 ppm, iron: 131 ppm

    Lawn care in Longmont, Colorado centers on managing cool-season grasses in clay-rich soils. The average Longmont lawn spans 2,149 square feet, making it perfect for DIY lawn maintenance with a custom lawn plan.

    The slightly alkaline soil pH of 7.7 means Longmont lawns need specific lawn care products that work well in basic conditions. The soil mix of sand, silt, and clay creates good growing conditions, but may need extra attention during dry spells.

    For better Longmont lawn care results:

    The high calcium and iron levels support strong grass growth, while balanced phosphorus and potassium help build hardy root systems that can handle Colorado's semi-arid climate.

    Sunday lawn care reviews near Longmont, CO

    Explore over 6,000 five star reviews of Sunday lawn care
    A lawn in Longmont, CO
    starstarstarstarstar

    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

    A lawn in Littleton, CO
    starstarstarstarstar

    Easy Green Lawn

    Easy and green!

    Christopher

    Littleton, CO

    A lawn in Longmont, CO
    starstarstarstarstar

    Great Results in Colorado

    Sunday products have worked great. Lawn looks terrific - green and healthy.

    Thomas

    Longmont, CO

    A lawn in Littleton, CO
    starstarstarstarstar

    Greenest yard on the block

    I have the greenest yard on the block and thickest

    John

    Littleton, CO

    A lawn in Longmont, CO
    starstarstarstarstar

    If we must continue to have turf in the mountain west region

    I love how Sunday 'dumbs down' turf maintenance. The world of fertilizers seems overwhelming to a guy like myself who just wants a healthy lawn. I appreciate the pet/child/environmental friendliness of the products.

    Matt

    Longmont, CO

    A lawn in Boulder, CO
    starstarstarstarstar

    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

    A lawn in Longmont, CO
    starstarstarstarstar

    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

    A lawn in Littleton, CO
    starstarstarstarstar

    Easy Green Lawn

    Easy and green!

    Christopher

    Littleton, CO

    A lawn in Longmont, CO
    starstarstarstarstar

    Great Results in Colorado

    Sunday products have worked great. Lawn looks terrific - green and healthy.

    Thomas

    Longmont, CO

    A lawn in Littleton, CO
    starstarstarstarstar

    Greenest yard on the block

    I have the greenest yard on the block and thickest

    John

    Littleton, CO

    A lawn in Longmont, CO
    starstarstarstarstar

    If we must continue to have turf in the mountain west region

    I love how Sunday 'dumbs down' turf maintenance. The world of fertilizers seems overwhelming to a guy like myself who just wants a healthy lawn. I appreciate the pet/child/environmental friendliness of the products.

    Matt

    Longmont, CO

    A lawn in Boulder, CO
    starstarstarstarstar

    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

    Let's get started

      Longmont, Colorado FAQs

      A healthy lawn in Longmont provides natural cooling, reduces soil erosion, filters pollutants, and absorbs rainfall - important benefits in Colorado's semi-arid climate. Well-maintained lawns also increase property value, create outdoor living spaces, and help prevent weed growth when grass is thick and healthy.

      Water your lawn in Longmont 2-3 times per week during peak growing season, providing about 1-1.5 inches of water per week. Water deeply in early morning hours between 4-10am to minimize evaporation. During cooler months or rainy periods, reduce watering frequency while maintaining the weekly water amount.

      For Longmont's climate, focus lawn care efforts from April through October. Start fertilizing in early spring when soil temperatures reach 50°F, typically mid-April. Core aerate in spring or fall. Overseed in late summer or early fall when temperatures are mild. Continue fertilizing through fall to strengthen roots before winter.

      Here are key maintenance tips for Longmont lawns:

      • Mow at 3-3.5 inches height, removing no more than 1/3 blade length per mowing
      • Keep mower blades sharp to prevent grass damage
      • Leave grass clippings on lawn to recycle nutrients
      • Address weeds through spot treatment rather than broadcast application
      • Test soil annually to determine nutrient needs
      • Reduce watering and fertilizing during summer heat stress

      Common lawn care challenges in Longmont include:

      • Clay soil that compacts easily and drains poorly
      • Hot, dry summers requiring careful watering management
      • Winter desiccation damage from dry winds
      • Weed pressure, especially dandelions and crabgrass
      • Altitude impacts on grass growth and recovery
      • Rapidly changing weather conditions affecting lawn health

      Longmont's semi-arid climate with cold winters and hot summers creates specific lawn care needs. The growing season runs April through October, with challenging conditions like:

      • Low annual rainfall (15 inches)
      • Wide temperature swings
      • High altitude (5,000 ft)
      • Strong winds
      • Clay soils
      • Frequent drought

      These factors require drought-resistant grass varieties and careful nutrient/water management.

      Here are eco-friendly lawn care practices for Longmont:

      • Mow high at 3-3.5 inches to promote deeper roots and natural weed suppression
      • Water deeply but infrequently to encourage drought tolerance
      • Use targeted fertilizer applications based on soil testing
      • Leave grass clippings to return nutrients to soil
      • Spot treat weeds rather than broadcast spraying
      • Choose drought-resistant grass varieties suited to the climate
      • Reduce fertilizer and water during summer dormancy periods

      To improve soil health in Longmont:

      1. Test soil annually to identify nutrient needs
      2. Core aerate in spring or fall to reduce compaction
      3. Add nutrients based on soil test results
      4. Leave grass clippings after mowing
      5. Maintain proper watering schedule to prevent soil stress
      6. Apply fertilizer with beneficial ingredients like seaweed and humic acid

      How to grow grass in Longmont, Colorado

      Most common grass type in Longmont Cool-season grasses
      Best way to grow grass in Longmont Seeding
      Recommended grass species for Longmont lawns Kentucky bluegrass, perennial ryegrass, tall fescue
      When to start growing grass in Longmont Spring from May 15 to June 5 or fall from September 19 to October 10

      Lawn care in Longmont, Colorado starts with choosing the right grass and timing. Cool-season grasses grow best here, with three main types suited for the area's climate: Kentucky bluegrass, perennial ryegrass, and tall fescue. Find your perfect grass match with our seed finder tool.

      The best times to seed your Longmont lawn are:

      • Spring: May 15 - June 5
      • Fall: September 19 - October 10

      Fall seeding often leads to better results since soil is warm and weeds are less active. Check out our grass seed options picked for your area.

      Tips for successful Longmont lawn care:

      1. Start with a custom lawn plan based on your soil and climate
      2. Water new grass seeds daily until they sprout
      3. Keep soil moist but not waterlogged
      4. Wait until grass reaches 3 inches before first mowing

      Want more seeding tips? Visit our lawn care guides for step-by-step help with your grass growing project.

      Longmont, CO lawn care blogs

      Aerial shot of a lawn with a path winding its way through. A group of people sits in the center of the lawn.

      Cool-Season Lawn Care Guide

      Maintaining your lawn throughout an entire year doesn't have to be overwhelming. We've created a month-by-month calendar that tells you exactly what your cool-season lawn needs throughout the seasons.

      Fine fescue grass in home lawn

      Fine Fescue Grass

      Fine fescues are a group of cool-season grasses that are a great, low-maintenance fit for shady lawns in the northern or transition zones of the U.S.

      St. Augustine grass lawn

      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.

      Fescue grass lawn

      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.

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