Lawn Fertilization & Spray Services

Enjoy a vibrant and resilient lawn.


Maintaining a healthy, lush lawn can be challenging due to various factors such as nutrient deficiencies, weed infestations, and uneven growth. Improper fertilization and spraying techniques can exacerbate these issues, leading to damaged grass, poor soil health, and an unattractive lawn.

At Delk, we offer fully certified fertilization and broadleaf spraying solutions to address these challenges effectively. Our Fuso trucks are equipped with tanks and hoses that allow us to reach even the most challenging areas, ensuring comprehensive coverage.

Our ZSPRAY apparatus functions both as a spreader and a sprayer, providing precise application of fertilizers and sprays. This dual functionality ensures that nutrients are evenly distributed and weeds are effectively controlled, promoting a healthier lawn.

Why Fertilization and Spray Treatments Matter


A well-maintained lawn isn’t just about appearance — it plays a big role in the overall health of your outdoor space. Proper fertilization improves soil structure, helps your grass grow thicker and stronger, and makes it naturally more resistant to weeds and pests.


Consistent broadleaf spray applications keep invasive weeds like dandelions and clover under control before they take over. At Delk, we build custom treatment plans based on your lawn’s specific needs, the type of grass you have, and the local climate conditions, making sure your lawn stays green, healthy, and easy to manage year-round.

Benefits of Professional Lawn Care Services


Lawn care can be more complicated than it looks. Without the right products, timing, and application techniques, it’s easy to waste time and money with little to show for it. That’s where a professional team like Delk Management makes a difference.

Our certified crews know exactly what your lawn needs, when it needs it, and how to apply it safely and evenly. We use high-grade equipment and products that reach every corner of your property, even tricky spots. The result is a healthy, great-looking lawn that stays in top shape — without the stress and guesswork.

A minimalist outdoor scene featuring a wooden fence alongside a lush green lawn.

Proudly Serving Eastern Washington and Northern Idaho


At Delk Management, we’re proud to serve communities across Eastern Washington and Northern Idaho from our base in Newman Lake. Our team handles everything from large-scale landscaping to certified fertilization and spray treatments, with a focus on commercial properties.


We regularly work with clients in Spokane, Liberty Lake, Post Falls, Coeur d’Alene, and the surrounding areas. Whether you manage a business park, school district, or municipal property, we’re equipped and ready to keep your outdoor spaces looking their best — all year round.

Let DELK Take Care of It.

Contact us today to discuss your needs and discover how we can keep your outdoor space looking its best.

Frequently Asked Questions

Curious about our lawn care services? Below you’ll find answers to some of the most common questions we receive.

We recommend fertilizing your lawn every 6 to 8 weeks during the growing season to maintain its strength, colour, and overall health. This routine helps your grass absorb essential nutrients consistently and promotes stronger root systems.

Yes — our broadleaf spray treatments are designed with safety in mind. Once the application has fully dried, it’s completely safe for pets and children to return to the lawn. We always provide clear aftercare instructions to ensure peace of mind.

While our main treatments are typically scheduled in the spring, summer, and fall, certain services like pre-emergent weed control can be applied in early spring. These proactive steps help prevent weed outbreaks before they begin.

Our year-round lawn care approach includes season-specific fertilization and broadleaf spray treatments. These services are tailored to the changing needs of your grass and soil throughout the year, ensuring your lawn remains green, strong, and easy to maintain in every season.