Top-rated lawn fertilization and treatment specialists.

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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon34
    Verified lawn fertilization and treatments reviews

Find Lawn fertilization and treatment specialists in Cos Cob

Sanchez Brothers

Based In
3.67(
3
)
Approved Pro

Sanchez Brothers

Based In
3.67(
3
)
Approved Pro
89 local quotes requested

At Sanchez Brothers needs are the most importance. Our team with 10+ years experience is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is to big or too small, please contact us for a free estimate!

"I recently hired Sanchez Brothers to handle trimming, shrub removal, and a full clean-up of my backyard, and I couldn’t be more pleased with the results. From the very beginning, their customer service stood out, they were quick to respond, professional in their communication, and made sure they fully understood what I wanted done. The team arrived on time, well-prepared, and got right to work. They were incredibly efficient and hardworking, carefully trimming and removing overgrown shrubs while keeping the surrounding areas neat and undisturbed. I appreciated how they paid attention to detail and followed through on every request I made. The clean-up afterward was just as impressive."

Chathuran H on September 2025

At Sanchez Brothers needs are the most importance. Our team with 10+ years experience is committed to meeting those needs. We welcome the opportunity to earn your trust and deliver you the best service. No job is to big or too small, please contact us for a free estimate!

"I recently hired Sanchez Brothers to handle trimming, shrub removal, and a full clean-up of my backyard, and I couldn’t be more pleased with the results. From the very beginning, their customer service stood out, they were quick to respond, professional in their communication, and made sure they fully understood what I wanted done. The team arrived on time, well-prepared, and got right to work. They were incredibly efficient and hardworking, carefully trimming and removing overgrown shrubs while keeping the surrounding areas neat and undisturbed. I appreciated how they paid attention to detail and followed through on every request I made. The clean-up afterward was just as impressive."

Chathuran H on September 2025


Avatar for Eco Logical LLC

Eco Logical LLC

24 North Main Street
4.94(
48
)
Approved Pro

Eco Logical LLC

24 North Main Street
4.94(
48
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
193 local quotes requested

Over 15 Years Experienced, Lawn Care , Power Wash , Junk Removal. Eco Logical – Eco-Friendly Lawn & Plant Health Care At Eco Logical, we provide sustainable and eco-friendly solutions for lawn care and plant health. Our services are designed to nurture your landscape while protecting the environment, using natural and organic methods that promote healthy, vibrant green spaces. We specialize in: ✔ Eco-friendly lawn maintenance ✔ Organic fertilization & soil health improvement ✔ Natural pest & disease control ✔ Sustainable plant care solutions Additionally, our Junk Collection Team helps keep your living espace organize and clean by removing and recycling all your unwanted items. We ensure that unwanted items are disposed of properly, minimizing landfill waste and maximizing eco-conscious practices. Choose Eco Logical for greener solutions that care for your lawn, plants, and the planet. 🌿♻️

"Great service, good communication and dependable. Arrives and delivers service as promised. Hired multiple times and definitely recommended."

Emely P on October 2025

Over 15 Years Experienced, Lawn Care , Power Wash , Junk Removal. Eco Logical – Eco-Friendly Lawn & Plant Health Care At Eco Logical, we provide sustainable and eco-friendly solutions for lawn care and plant health. Our services are designed to nurture your landscape while protecting the environment, using natural and organic methods that promote healthy, vibrant green spaces. We specialize in: ✔ Eco-friendly lawn maintenance ✔ Organic fertilization & soil health improvement ✔ Natural pest & disease control ✔ Sustainable plant care solutions Additionally, our Junk Collection Team helps keep your living espace organize and clean by removing and recycling all your unwanted items. We ensure that unwanted items are disposed of properly, minimizing landfill waste and maximizing eco-conscious practices. Choose Eco Logical for greener solutions that care for your lawn, plants, and the planet. 🌿♻️

"Great service, good communication and dependable. Arrives and delivers service as promised. Hired multiple times and definitely recommended."

Emely P on October 2025


Jeffrey A. O'Brien Lawn, Tree & Shrub Care, LLC

PO Box 426
4.85(
33
)
Approved Pro

Jeffrey A. O'Brien Lawn, Tree & Shrub Care, LLC

PO Box 426
4.85(
33
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

Our services include: complete lawn care, insect and disease control, tick control, geese control, organic programs, tree spraying, party spraying, aerating, over seeding and deep root feeding. 100% Organic Tick Spraying. Introducing Tick Control System with "Tick Box". Treat ticks at the source, mice and chipmunks. Not harmful to them, but will kill the tick before it makes it way to a deer.

"Fantastic! Quick , efficient and great job! Exceeded my expectations!"

Val W on December 2021

Our services include: complete lawn care, insect and disease control, tick control, geese control, organic programs, tree spraying, party spraying, aerating, over seeding and deep root feeding. 100% Organic Tick Spraying. Introducing Tick Control System with "Tick Box". Treat ticks at the source, mice and chipmunks. Not harmful to them, but will kill the tick before it makes it way to a deer.

"Fantastic! Quick , efficient and great job! Exceeded my expectations!"

Val W on December 2021


Avatar for Turning Green, LLC

Turning Green, LLC

PO Box 901
4.23(
88
)
Approved Pro

Turning Green, LLC

PO Box 901
4.23(
88
)
Approved Pro
Customers say: Quality work
130 local quotes requested
15 years of experience

Turning Green,LLC will make sure your Natural Outdoor is safe, healthy and green. We'll inspect your lawn, or trees and shrubs, and provide a complete, written, analysis of its condition, treatment recommendations, and cost. Following your approval, we'll return to make timely, seasonal applications. We're also available any time for questions or concerns. "Our work is 100% guaranteed". What makes us different from other companies; we're hands on company, working directly with our clients. Safety is our priority. We understand how important your family and our ecology are, because we live in this ecology and we are a family owned business. We make it a goal to leave your patio, walkway, or driveway cleaner than when we arrive. You can count on and trust our certified applicators with many years of experience. Organic was for the future, the future is now, and we are ready for it!

"They were very thorough in a tree trimming project I hired them for originally. I then tried discussed with them that I was looking for a lawn maintenance service. I would be mowing myself but wanted someone to provide the maintenance, ferilization, soil conditioning and other basic services for the year. Their price was fair and the day I signed the contract, they showed up to take a soil sample and provide the first treatment. They have been nothing but polite on the phone and very responsive with email replies and updates when they complete any portion of the project. I recommend using them."

Jeffrey B on April 2023

Turning Green,LLC will make sure your Natural Outdoor is safe, healthy and green. We'll inspect your lawn, or trees and shrubs, and provide a complete, written, analysis of its condition, treatment recommendations, and cost. Following your approval, we'll return to make timely, seasonal applications. We're also available any time for questions or concerns. "Our work is 100% guaranteed". What makes us different from other companies; we're hands on company, working directly with our clients. Safety is our priority. We understand how important your family and our ecology are, because we live in this ecology and we are a family owned business. We make it a goal to leave your patio, walkway, or driveway cleaner than when we arrive. You can count on and trust our certified applicators with many years of experience. Organic was for the future, the future is now, and we are ready for it!

"They were very thorough in a tree trimming project I hired them for originally. I then tried discussed with them that I was looking for a lawn maintenance service. I would be mowing myself but wanted someone to provide the maintenance, ferilization, soil conditioning and other basic services for the year. Their price was fair and the day I signed the contract, they showed up to take a soil sample and provide the first treatment. They have been nothing but polite on the phone and very responsive with email replies and updates when they complete any portion of the project. I recommend using them."

Jeffrey B on April 2023


A Golden Touch Lawn Care

No reviews yet

A Golden Touch Lawn Care

No reviews yet

LAWN Care application's - Aeration & Seeding - Ornamental Care - Deep Root Feeding - Tick Control . I am owner and operator and on all job site on day of application. I started my Lawn & Ornamental Care & Tick Control business in 1998.

LAWN Care application's - Aeration & Seeding - Ornamental Care - Deep Root Feeding - Tick Control . I am owner and operator and on all job site on day of application. I started my Lawn & Ornamental Care & Tick Control business in 1998.


Rafael Garden Landscaping

No reviews yet

Rafael Garden Landscaping

No reviews yet
25 years of experience

Landscaping company servicing the lower Fairfield County area for many years. We provide lawn maintenance, spring/fall cleanup services, pruning, trimming, lawn treatments, dump runs, etc. Contact us with any of your landscaping needs, references can be provided upon request.

Landscaping company servicing the lower Fairfield County area for many years. We provide lawn maintenance, spring/fall cleanup services, pruning, trimming, lawn treatments, dump runs, etc. Contact us with any of your landscaping needs, references can be provided upon request.


CornerStone

No reviews yet

CornerStone

No reviews yet

CornerStone provides landscaping and snow removal for residential and commercial properties. Our dedicated team of skilled technicians are committed to provide superior service fitting to your properties unique needs. In addition to exterior property maintenance, we also can provide concrete repairs, asphalt repairs, masonry and carpentry repairs as well as seasonal planting and decor installation. We can provide power washing, dumpster rental and firewood too. It's one stop shopping with CORNERSTONE! We are a local Westchester family that owns and operates this business. We are fully licensed and insured serving Westchester communities and the tri-county area.

CornerStone provides landscaping and snow removal for residential and commercial properties. Our dedicated team of skilled technicians are committed to provide superior service fitting to your properties unique needs. In addition to exterior property maintenance, we also can provide concrete repairs, asphalt repairs, masonry and carpentry repairs as well as seasonal planting and decor installation. We can provide power washing, dumpster rental and firewood too. It's one stop shopping with CORNERSTONE! We are a local Westchester family that owns and operates this business. We are fully licensed and insured serving Westchester communities and the tri-county area.


Darios landscaping

No reviews yet

Darios landscaping

No reviews yet

We offer a series of lawn development and upkeep programs devoting attentions to every aspect of turf grass culture. These include lawn maintenance, landscaping, mulching, lawn aeration & seeding, irrigation services, spot re-seeding, total lawn renovation, soil testing, disease control, de-thatching, grub control, lime application, Mansory, Tree work, Gutters, Trimming & pruning, Garden design, Planting, Fencing, Snow, Driveway asphalt, and trenches. All our products and services are positioned at the high end of the market in terms quality, and the mid to small scale end in terms of size and price. What sets us apart from other businesses is we are 100% customer service oriented.

We offer a series of lawn development and upkeep programs devoting attentions to every aspect of turf grass culture. These include lawn maintenance, landscaping, mulching, lawn aeration & seeding, irrigation services, spot re-seeding, total lawn renovation, soil testing, disease control, de-thatching, grub control, lime application, Mansory, Tree work, Gutters, Trimming & pruning, Garden design, Planting, Fencing, Snow, Driveway asphalt, and trenches. All our products and services are positioned at the high end of the market in terms quality, and the mid to small scale end in terms of size and price. What sets us apart from other businesses is we are 100% customer service oriented.


Avatar for OBM Lawncare

OBM Lawncare

5.00(
1
)

OBM Lawncare

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Here at OBM Lawncare, we strive to give the best lawn service possible. I'm a one man show with great insight and foresight for all your proper lawncare needs. Your satisfaction matters, so rest assured I will always prioritize my clients. Im hard working and I will go above and beyond until the task is finished. As a Tasker looking to branch onto other platforms, I have proven that I can provide an excellent service leaving every client satisfied. With experience in mulching, planting, seeding, tilling, fertilization, weed control, and soil health, trust in me to get the job done on time all the time. For more details and reviews, check out my skills: https://tr.co/nathan-m--104

"They were personable and they make sure the progress they were doing was what I wanted."

Alicia V on June 2023

Here at OBM Lawncare, we strive to give the best lawn service possible. I'm a one man show with great insight and foresight for all your proper lawncare needs. Your satisfaction matters, so rest assured I will always prioritize my clients. Im hard working and I will go above and beyond until the task is finished. As a Tasker looking to branch onto other platforms, I have proven that I can provide an excellent service leaving every client satisfied. With experience in mulching, planting, seeding, tilling, fertilization, weed control, and soil health, trust in me to get the job done on time all the time. For more details and reviews, check out my skills: https://tr.co/nathan-m--104

"They were personable and they make sure the progress they were doing was what I wanted."

Alicia V on June 2023


Avatar for Greenscape Lawn Care

Greenscape Lawn Care

5.00(
10
)

Greenscape Lawn Care

5.00(
10
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Greenscape Lawn Care is a locally owned and family operated business based out of Stratford CT. The company is owned and operated by 2 brothers, Jorge and Giovanni that have over 10 years of experience in lawn care. Our companies main focus is high quality and making sure That you’re completely satisfied with our work. You’ve got better things to do, so let us handle your yard work!

"Good response time and prompt service"

Matthew H on June 2024

Greenscape Lawn Care is a locally owned and family operated business based out of Stratford CT. The company is owned and operated by 2 brothers, Jorge and Giovanni that have over 10 years of experience in lawn care. Our companies main focus is high quality and making sure That you’re completely satisfied with our work. You’ve got better things to do, so let us handle your yard work!

"Good response time and prompt service"

Matthew H on June 2024

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Lawn Fertilization and Treatment questions, answered by experts

Your St. Augustine grass might look bad due to cold winter months, drought, pest invasion, or lawn disease. The first step is properly identifying the problem. Once you’ve figured out what’s making your grass look bad, you’ll need to employ the correct treatments. These treatments may include:

  • Properly mow your lawn and keep the clippings on the lawn as organic matter.

  • Use healthy irrigation techniques.

  • Use the right amount of fertilizer.

  • Keep up a good, regular maintenance routine.

  • Use fungicides.

Many gardeners charge an hourly rate for their services, and your total cost will depend on the amount of services and the experience of the gardener. Gardeners with basic experience charge between $20 and $30 per hour, while a more experienced gardener can charge as much as $60 to $88 per hour.

The cost of lawn mowing is about $125, which you might need on a weekly or biweekly basis. However, the cost of soil testing averages about $1,450, which should only be done every three to five years. 

Consider lawn size, chosen products, and contract duration. Professional services may provide value through expertise and thorough treatment programs.

You can use a fungicide to help control powdery mildew, but you should apply it judiciously as it can damage soil health and persist in the soil. Most of the time, proper watering, surface drying, and limiting shade can control powdery mildew without needing harsher interventions. If you have a repeated problem with powdery mildew, you can also try planting a shade-resistant type of grass that will be less susceptible to the fungus.

Overfertilizing can burn and kill the grass as well as upset the soil's nutrient balance, leaving your grass prone to disease and infestation. You'll know that you have overfertilized your burn when you have recently fertilized and begin to see brown and yellow patches of dead grass that need to be reseeded. 

The Cos Cob, CT homeowners’ guide to lawn fertilization and treatments

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
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