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Top Lawn Fertilization & Weed Control in Westminster, Colorado Ranked

A healthy, vibrant lawn in Westminster requires a targeted approach to feeding and weed management. Lawn fertilization provides essential nutrients for robust growth and color, while weed control prevents invasive plants from competing for resources. This guide explains the specific needs of local lawns, outlines a seasonal care plan, and provides practical information to help you connect with qualified professionals who can create a customized program for your property.

Weed Man Lawn Care

Weed Man Lawn Care

11427 W Interstate 70 Frontage Rd, Wheat Ridge, CO 80033

Weed Man Lawn Care is a lawn care company serving Denver, CO. They offer services including lawn fertilization, weed control, aeration, and pest management to improve lawn health and appearance. With over 50 years of experience, Weed Man uses proven methods tailored to Denver's soil and climate conditions to maintain healthy lawns.

5.0
190 Reviews
NationScapes

NationScapes

12600 W Cedar Dr, Lakewood, CO 80228

NationScapes is a lawn care and landscaping company serving Denver, CO, and the surrounding communities including Lakewood, Littleton, Arvada, and Golden. They offer a wide range of services such as lawn mowing, fertilization, weed control, sprinkler installation and repair, landscape lighting, tree and shrub care, and seasonal winter protection. Their certified technicians use modern techniques and products to maintain healthy lawns and efficient irrigation systems. Established in 1947, NationScapes brings decades of experience and a team of skilled professionals to deliver personalized service plans tailored to customer needs. They provide seasonal packages and offer same-day emergency sprinkler repairs when available.

4.9
3.2k Reviews
Joshua Tree Experts

Joshua Tree Experts

8173 Carder Ct, Littleton, CO 80125

Joshua Tree Experts is a lawn care and tree service company based in Aurora, CO. They offer a range of services including lawn mowing, fertilization, weed control, tree removal, stump grinding, and landscaping. The company focuses on plant health care and outdoor living space maintenance, combining multiple green industry services to meet local needs. Joshua Tree Experts aims to build a strong team of professionals dedicated to serving the Denver community.

5.0
100 Reviews
Happy Roots

Happy Roots

11727 Salem St, Henderson, CO 80640

Happy Roots is a family-owned lawn care company based near Denver, CO, serving the northern suburbs with lawn, landscape, and sprinkler services. Established in 2005 in Thornton, Colorado, they offer lawn mowing, fertilization, weed control, landscaping, and sprinkler installation and repair. The company emphasizes personalized service and has been recognized for its lawn care and customer service, including multiple Angie's List Super Service Awards and a Dave Ramsey Entreleadership scholarship.

4.9
181 Reviews
Colorado Sprinkler Repair

Colorado Sprinkler Repair

12412 York St, Thornton, CO 80241

Colorado Sprinkler Repair is a family-owned lawn care and sprinkler service company based in Denver, CO. They provide a range of services including sprinkler system installation, repair, maintenance, lawn mowing, fertilization, aeration, weed control, and landscaping for both residential and commercial properties. With nearly three decades of experience, they focus on helping customers maintain healthy lawns in the semi-arid climate of the North Denver Metro area. Their expertise includes commercial irrigation and sprinkler blowout services, and they offer convenient packages combining sprinkler and lawn care. The company guarantees repairs at no extra cost if issues arise after service and commits to responding to customer requests within 24 business hours.

5.0
61 Reviews
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Understanding Westminster's Lawn Types

The foundation of effective lawn care is knowing what type of grass you have. In Westminster's warm, Mediterranean climate, warm-season grasses are the most common, though some cool-season varieties may also be present 1.

Warm-Season Grasses (Most Common): These grasses thrive in the heat and are most active from late spring through early fall. The primary varieties include:

  • Bermudagrass: Known for its fine texture, drought tolerance, and aggressive growth habit.
  • St. Augustine: A coarse, broad-leaf grass that is shade-tolerant and forms a thick, carpet-like lawn.
  • Zoysiagrass: A dense, slow-growing grass that is highly wear-resistant and requires less frequent mowing.

Cool-Season Grasses (Less Common): These grasses prefer milder temperatures and may struggle in the peak summer heat. They are sometimes found in shaded areas or as part of a winter overseeding mix.

  • Tall Fescue: Known for its deep roots and good heat tolerance for a cool-season grass.
  • Perennial Ryegrass: Often used for overseeding Bermuda lawns in the fall to provide winter color.

The Essential Seasonal Care Calendar

A proactive, seasonal schedule is far more effective than reacting to problems. Here's a breakdown of a typical annual lawn nutrition and weed management program for Westminster 1 2 3.

Spring (March - May): Awakening and Fortification

Spring is the time to encourage strong, healthy growth and create a defensive barrier against weeds.

  • Aeration: This process involves removing small plugs of soil to alleviate compaction, allowing air, water, and nutrients to reach the root zone more effectively. It's a critical step for healthy soil 2.
  • Fertilization: The first major feeding of the year applies a balanced, spring-blend fertilizer high in nitrogen to kickstart lush, green growth as the grass exits winter dormancy 1.
  • Weed Control: Applying a pre-emergent herbicide is crucial. This product creates a barrier in the soil that prevents weed seeds (like crabgrass and annual bluegrass) from germinating, stopping problems before they start 3.

Summer (June - August): Maintenance and Protection

The goal in summer is to maintain health through the stress of heat and manage any breakthrough weeds.

  • Fertilization: Warm-season grasses benefit from a lighter, summer-appropriate feeding to sustain color and vigor without promoting excessive growth that demands more water.
  • Weed Control: Post-emergent spot treatments target any weeds that have emerged, such as dandelions or clover. These are applied directly to the weed 4.
  • Watering Support: Professionals can advise on optimal watering schedules to ensure your lawn receives deep, infrequent watering that encourages strong roots.

Fall (September - November): The Most Critical Season

Fall care is arguably the most important for long-term lawn health, focusing on root development and preparation for winter.

  • Fertilization: A fall fertilizer application is key. It is typically higher in potassium, which strengthens cell walls, promotes deep root growth, and improves the lawn's drought and disease resistance for the following year 1 3.
  • Weed Control: This is the ideal time to tackle persistent broadleaf weeds like clover and chickweed, as weeds are actively transporting nutrients to their roots, making them more susceptible to herbicides.
  • Overseeding: For Bermuda grass lawns, overseeding with perennial ryegrass is common. This provides a green lawn throughout the winter months after the Bermuda goes dormant and turns brown 3.

Winter (December - February): Minimal Input and Planning

Growth slows significantly during this period.

  • Care: Activities are minimal, focusing on debris removal and monitoring soil moisture during dry spells.
  • Planning: This is an excellent time to consult with a lawn care provider to plan and schedule services for the upcoming spring.

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Integrated Lawn Care: The Combined Approach

The most effective strategy for a healthy lawn is an integrated program that combines fertilization and weed control. Treating these elements separately is often less efficient and can lead to inconsistent results. A combined program ensures that nutrient applications and weed management efforts are timed to work in harmony, supporting the grass while systematically suppressing weeds 5. This approach is typically offered as an annual plan, which provides consistent, scheduled care and often comes at a better value than one-off services.

Understanding Service Costs and Plans

Investing in professional lawn feeding and weed management is an investment in your property's curb appeal and long-term health. Costs can vary based on your lawn's size, condition, and the specific program you choose 6 7.

Pricing Models:

  • Per-Visit Service: A single application of fertilizer and weed control typically ranges from $50 to $100 or more, depending on the products used and lawn size 6 8.
  • Annual Program: Most providers offer bundled annual plans that include multiple scheduled visits (often 5-8 per year) covering all seasonal needs. These comprehensive plans generally range from $300 to $900+ annually 6 7. Enrolling in an annual plan usually offers a discount compared to paying for each service individually and guarantees consistent care.

Key Cost Factors:

  • Lawn Size: This is the primary driver. Costs are often calculated per square foot, with rates typically between $0.02 and $0.08 per square foot for fertilization and weed control services 7. Larger lawns may receive a lower per-square-foot rate.
  • Lawn Condition: Lawns with significant weed infestations or poor soil health may require initial corrective treatments, which can increase the first year's cost.
  • Program Scope: A basic fertilization and weed control plan will cost less than a premium plan that also includes services like aeration, grub control, or soil amendments.

Choosing the Right Service for Your Lawn

When evaluating lawn care providers, look for companies that offer a customized approach. They should start with an analysis of your grass type, soil condition, and existing weed pressure. Ask about their specific product choices and the timing of their applications. A reputable provider will be able to explain their seasonal plan and how it aligns with the needs of Westminster's climate and common grass types 9 10 5.

Frequently asked questions

Sources

Footnotes

  1. Lawn Fertilization & Weed Control in Southern California - https://www.lawnscape.com/lawn-care-services/fertilization-weed-control/ 2 3 4

  2. Seasonal Lawn Care for Inland SoCal Homes - Quality Turf - https://qturf.com/blog/importance-of-seasonal-lawn-maintenance/ 2

  3. Southern California Lawn Care Calendar | Month-by-Month Plan - https://www.landtechscenery.com/southern-california-lawn-care-calendar 2 3 4

  4. Fertilization and Weed Plans for a Beautiful Lawn - https://www.lawndoctor.com/annual-programs/fertilization-and-weed-plans/

  5. Fertilization & Weed Control: A Combined Approach - https://www.lawnscape.com/blog/2025/october/fertilization-weed-control-a-combined-approach/ 2

  6. How Much Does Lawn Fertilization Cost in 2026? - https://lawnlove.com/blog/lawn-fertilization-cost/ 2 3

  7. How much does lawn care service cost? - Green Lawn Fertilizing - https://www.greenlawnfertilizing.com/blog/how-much-does-lawn-care-service-cost 2 3

  8. How Much Does Lawn Weed Control Cost in 2026? - https://lawnlove.com/blog/weed-control-cost/

  9. When to Fertilize Your Lawn in California - LawnStarter - https://www.lawnstarter.com/blog/california/when-to-fertilize-lawn-california/

  10. average cost of lawn fertilization service: 7 Best 2025 Wins - https://ajmgrounds.com/average-cost-of-lawn-fertilization-service/