
Find the Best Lawn Fertilization & Weed Control for Your Business
No obligation • Fast responses • Nationwide coverage
- Home
- Lawn Fertilization & Weed Control
- Colorado
- Fort Collins

Why you can trust Landscape Atlas
Landscape Atlas is a leading United States resource for evaluating landscaping, lawn care, and outdoor service providers. Our team researches each category in depth, focusing on service quality, safety, and customer experience. Listings and rankings are based on independent criteria and user feedback, and companies cannot pay to influence our assessments or recommendations.
Search providers near you
Top Lawn Fertilization & Weed Control in Fort Collins, Colorado Ranked
Maintaining a vibrant, healthy lawn in Fort Collins requires a strategic approach tailored to the local climate and soil. A professional lawn fertilization and weed control program is the systematic application of nutrients and targeted treatments to promote strong grass growth while suppressing unwanted weeds. This is essential for creating a resilient, green outdoor space that can withstand Northern Colorado's semi-arid conditions and seasonal extremes. The following guide will help you understand the key components of a local lawn care program, the typical schedule, and what to look for when seeking a provider for your property.
Understanding Fort Collins Lawns
The foundation of effective lawn nutrition and weed management is understanding what you're working with. Most lawns in Fort Collins are composed of cool-season grasses, primarily Kentucky Bluegrass and various Fescue blends 1 2 3. These grasses thrive in cooler temperatures and have two main growth spurts: one in the spring and a more vigorous one in the fall. They go semi-dormant during the hot, dry summer months, which is a natural survival mechanism. This growth cycle directly dictates the timing and type of care your lawn needs.
A significant local factor is soil composition. Fort Collins soils are often alkaline, meaning they have a high pH level 1 4. This alkalinity can lock up essential nutrients like iron and phosphorus, making them unavailable to grass roots even if they are present in the soil. A quality lawn care service will address this through soil amendments or specially formulated fertilizers designed to work in alkaline conditions, ensuring your grass can actually absorb the nutrients it's given.
The Core of a Local Program: Fertilization & Weed Management
A comprehensive lawn care plan integrates two primary functions: feeding the grass you want and controlling the plants you don't.
Lawn Fertilization Fertilization is not just about making grass green; it's about building a robust root system and providing balanced nutrition. In Fort Collins, professionals typically use slow-release nitrogen formulas 1 5. This technology provides a steady supply of nutrients over several weeks, promoting even, sustained growth without the excessive "flush" that can come from quick-release products. A balanced fertilizer will contain not only nitrogen (N) for top growth and green color but also phosphorus (P) for root development and potassium (K) for overall plant health, drought tolerance, and winter hardiness 6. The specific blend and application rate are often customized based on your grass type and observed lawn conditions.
Weed Control Weed management is a year-round battle fought on two fronts: prevention and elimination.
- Pre-emergent Control: This is a proactive treatment applied in early spring (and sometimes late summer for winter annuals) 2 6. It creates a barrier in the soil that stops weed seeds, like crabgrass and foxtail, from germinating and taking root. Timing is critical for pre-emergent to be effective.
- Post-emergent Control: This reactive treatment targets weeds that have already sprouted. For broadleaf weeds common in Fort Collins, such as dandelions, clover, and spurge, selective herbicides are used that kill the weed without harming the grass 7 8 9. For grassy weeds, control can be more challenging and may require specific products.
Find the perfect lawn fertilization & weed control for your needs
Get personalized recommendations and expert advice
A Typical Fort Collins Lawn Care Schedule
Most local providers structure their services around a 4 to 6-application program that follows the natural growth cycle of cool-season grasses 1 2 7. Here's a breakdown of a standard annual schedule:
Early Spring (March - April) The first visit kicks off the growing season. The focus is on applying a pre-emergent herbicide to prevent crabgrass and other summer annual weeds, combined with a light fertilizer application to encourage early green-up and recovery from winter 2 4 6. This treatment is time-sensitive and must be applied before soil temperatures consistently reach the level that triggers weed seed germination.
Late Spring (May - June) As temperatures rise, broadleaf weeds become more active. This application typically involves a post-emergent herbicide to target visible weeds like dandelions and clover, paired with a balanced fertilizer to support growth before the summer heat sets in 2 8.
Summer (July - August) Summer care shifts to maintaining health during stress. A slow-release fertilizer application provides steady nutrition without pushing excessive growth. This visit often includes spot treatments for any breakthrough weeds or early signs of insect activity like chinch bugs 6.
Late Summer (August - September) This is a key application for preparing the lawn for fall. It usually includes another round of broadleaf weed control and a fertilizer to strengthen the grass as it enters its prime fall growing period 2.
Fall (October - November) The final, and arguably most important, treatment of the year focuses on root development and winter preparation. The fertilizer used is typically higher in potassium, which enhances root growth, improves disease resistance, and increases cold tolerance-all vital for surviving a Fort Collins winter and ensuring a quicker green-up the following spring 2 6.
Additional Services for a Healthier Lawn
While fertilization and weed spraying are the pillars, many companies offer complementary services that significantly boost your results:
- Core Aeration: This process removes small plugs of soil from your lawn, alleviating compaction and allowing air, water, and nutrients to penetrate the root zone more effectively. It's highly recommended for most lawns, especially those with heavy clay soil or high foot traffic.
- Overseeding: After aeration is an ideal time to overseed, which introduces new grass seed to fill in thin or bare spots. This improves lawn density, which naturally helps crowd out future weeds.
- Grub & Insect Control: Preventive or curative treatments for soil-dwelling pests like white grubs can prevent significant lawn damage.
- Soil Amendments: To combat local alkalinity, services may include applications of products containing calcium and sulfur to help neutralize pH and improve nutrient availability 1 4.
Understanding Investment and Value
The cost for a professional lawn feeding and weed management program in Fort Collins varies based on the size of your lawn, the number of annual applications, and the specific services included. Research indicates that a basic annual program can range from approximately $300 to $600 1 10. On a per-visit basis, individual fertilization and weed control treatments might cost between $50 and $100 1 10. It's important to get quotes based on your property's specific square footage (the average residential lawn in Fort Collins is around 2,377 square feet) and to understand exactly what is included in a quoted program price.
Frequently asked questions
Sources
Footnotes
-
Lawn Care in Fort Collins, CO from $55 | 6000+ 5-Star Reviews - https://www.getsunday.com/local-guide/lawn-care-in-fort-collins-co ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7
-
5 Application Lawn Program - https://naturescapelawncare.com/us/services/lawncare/5app/ ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7
-
Fort Collins to restrict high-water turf grass, per new Colorado law - https://www.coloradoan.com/story/news/2025/01/24/fort-collins-to-restrict-high-water-turf-grass-per-new-colorado-law/77857179007/ ↩
-
Annual Lawn Care Program for Acidic Soil l Jonathan Green - https://www.jonathangreen.com/product/annual-lawn-care-program-acidic-soil/ ↩ ↩2 ↩3
-
Enjoy a Green Lawn | Weed Control & Fertilization | Fort Collins - https://fortcollins.weedman.com/ ↩
-
A Complete Colorado Lawn Care Schedule - https://healthylawn.net/blog/complete-colorado-lawn-care-schedule/ ↩ ↩2 ↩3 ↩4 ↩5
-
Annual Lawn Fertilization and Weed Control in Fort Collins - https://www.lawndoctor.com/fortcollins-co/lawn-fertilization/ ↩ ↩2
-
Weed Control in Fort Collins: How We Can Help - https://www.lawndoctor.com/fortcollins-co/weed-control-in-fort-collins-how-we-can-help/ ↩ ↩2
-
Weed Control in Northern Colorado - American Turf & Tree Care - https://www.americanturfandtreecare.com/services/weed-control ↩
-
How much does lawn care service cost? - Green Lawn Fertilizing - https://www.greenlawnfertilizing.com/blog/how-much-does-lawn-care-service-cost ↩ ↩2