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Protect Your Turf; Why Fertilizing Your Lawn Matters

lawn fertilizing

If the grass truly is always greener in your neighbor’s yard, it’s probably because they’re properly fertilizing their lawn and you’re not. If you’d like to look out your window and see lush, green grass with nary a weed in sight, it’s time to get serious about lawn care. It comes down to way more than mowing. 

Fertilizing your lawn replenishes essential soil nutrients (like nitrogen, phosphorus, potassium) that grass uses for growth, color, and root strength, preventing it from becoming weak, pale, or overrun by weeds. It builds a thicker, greener lawn that’s more resilient to stress from heat, drought, foot traffic, and pests, helping it recover from winter and prepare for the next season, leading to a healthier, denser, and more beautiful yard. 


Six Key Reasons to Fertilize:

  1. Nutrient Replenishment: Grass consumes nutrients from the soil; fertilization puts these vital elements back, as most soils can’t supply them all season.
  2. Improved Color & Density: Fertilizer promotes lush, green growth and denser turf, creating that desirable “carpet” look.
  3. Stronger Roots: Nutrients encourage root development, giving your lawn better access to water and food, making it stronger.
  4. Stress Resistance: A well-fed lawn withstands heat, drought, heavy foot traffic, and cold better.
  5. Weed & Pest Prevention: Healthy, dense grass crowds out weeds and is less susceptible to diseases and pests.
  6. Seasonal Preparation: Fall feeding helps lawns store energy for winter, while spring feeding kickstarts growth after dormancy. 


A Six-Round Application for a Lush, Green, Weed-free Lawn 

If you’re not currently fertilizing your yard, the first thing to remember is that progress doesn’t happen overnight. If your grass hasn’t been fertilized for a while, it could take a year or two for the results to really shine. However, it’s definitely an investment that pays off over time.

When to Start

In central Indiana, we never quite know when the last snow will fall. Every year is different. So, there’s no rule of thumb about what the date range for applications should be from one year to the next. But generally mid to late-March is a safe bet. 

Round One
What: Fertilization and Pre-Emergent 
When: After the snow has flown. 

This first fertilizing round should be nitrogen heavy, to focus on rapid growth and a beautiful green color. The pre-emergent primarily targets crabgrass seeds, preventing them from germinating for three months. Some existing crabgrass may still break through, but will be addressed in later rounds. (Note, if you’re trying to grow new grass from seeds, you should skip this round.) 

Round Two
What: Additional Round of Fertilization, Pre-emergent and Blanket and Spot Weed Sprays
When: 21-28 days from last treatment.

A second round of slow-release fertilizer and long-term pre-emergent is designed to keep broadleaf weeds and crabgrass from germinating all spring. Blanket spraying utilizes a selective herbicide, made to only kill broadleaf weeds and not grass, applied to the whole property. Some existing crabgrass will probably still pop up–spot-spraying will take care of that.  

Round Three
What: Fertilization, Insect Control 
When: 21-28 days from last treatment.

The fertilizer for this round focuses on slow release; continuously feeding but not over-feeding. The turf should be well established by now, and does not need rapid growth. The insecticide in this focuses on the most commons pests that can damage your turf, including: annual bluegrass weevils, armyworms, adult billbugs, black turfgrass ataenius, cutworms, leafhoppers, mealybugs, sod webworms, ants, centipedes, chinch bugs, fleas, millipedes, mole crickets, and ticks. Blanket and Spot sprays should also continue, to keep weeds at bay. 

Round Four
What: Continued Fertilization, Additional Insect Control 
When: 21-28 days from last treatment.

In addition to slow-release fertilizer, this round focuses on soil-dwelling bugs and their larvae. Some of these pests you definitely don’t want in your yard include: annual bluegrass weevils, billbugs, crane flies, and the larvae of asiatic garden beetles, black turfgrass ataenius, European chafers, green June beetles, Japanese beetles, northern and southern masked chafers and sugarcane beetles. Blanket and Spot sprays should also continue, to keep weeds at bay.

Round Five 
What: Fertilization, Insect Control 
When: 21-28 days from last treatment.

This application is a reinforcing second round of everything done in Round Three, but it’s important to stay consistent with treatments as summer comes to a close and the temperatures cool, or those weeds you’ve worked so hard to keep at bay all summer may start peeking back through.

Round Six
What: Winterization
When: 21-28 days from last treatment.

This last step in protecting your lawn is an important one. It helps your yard get ready for winter with a slow-release fertilizer containing high amounts of nitrogen, which carries your lawn into the dormancy stage in its best possible health, allowing it to bounce back green and lush in the spring.

How Heat Affects Your Turf Care Schedule

  1. Switching to a water-based herbicide. Not all landscaping companies do this, but the Heath Outdoor turf specialists switch from an oil-based (ester) herbicide, to a water-based (amine) product once the temperatures are consistently in the 80s and above, because the water-based product is less volatile, less prone to drifting onto unwanted landscaping targets, and more gentle on heat-stressed grass in the hot summer months.  
  2. Don’t treat in high heat. When temps go above 90°, your lawn gets stressed, and that stress speeds up the absorption rate of the herbicide, which can lead to turf injury. Also, the herbicide also becomes more volatile and can drift into unwanted areas, such as neighboring plants. Your turf care pros should reschedule your treatments when Mother Nature delivers an unrelenting heat wave.

Key Do’s and Don’ts for You

  1. Keep pets and kiddos off the lawn for three hours after each application. The lawn should be dry to the touch. Drying time may be faster, based on the time of day of the application and the temperature at the time of application, but three hours is a good guideline.  
  2. Do not water for 24 hours. While the fertilizer is granular and needs water to activate, the herbicide is liquid and needs time to soak in. Watering prior to 24 hours runs the risk of washing the application into a neighboring plant or storm drain and you’re potentially wasting the herbicide.

Summing it up

Like all of your trees and perennials, your grass needs care throughout the seasons to ensure that it lives a long, lush and full life, providing you with a weed and pest-free place to play, relax and spend time with family and friends. Plus, adding a seasonal lawn fertilization plan to your overall outdoor maintenance schedule will make your yard the envy of the neighborhood!  

About Heath Outdoor

Heath Outdoor, a premier, local, family-owned landscaping company established in 2009, proudly serves the vibrant communities of Indianapolis and its surrounding areas. Strategically located in the heart of Indianapolis, we extend our expert landscaping and hardscaping services to both commercial and residential customers in Carmel, Westfield, Fishers, Geist, Noblesville, Zionsville, Avon, Plainfield, Brownsburg, McCordsville, Greenwood and beyond. 

Design and build services include:

Custom gardens and landscapes, paver patios and walkways, water features and recreation ponds, custom outdoor fire pits and fireplaces, outdoor kitchens, pool and spa vaults, tiny houses, storage sheds, pergolas and decks, retaining walls, fencing and playgrounds. 

Commercial and residential property maintenance services include: 

Mowing, mulching, planting and watering service, irrigation and drainage system installation and repairs, seasonal property clean-ups, and snow and ice management. In 2024, Heath Outdoor added eco-focused private gardening and garden coaching to our property maintenance services through a partnership with Spotts Garden Service.

Why Heath Outdoor?

We’re not just in the business of landscaping—we’re in the business of finding solutions and bringing dreams to life. Whether it’s crafting breathtaking commercial outdoor spaces or creating custom outdoor living areas from scratch, we’ve got the passion, expertise, creativity and team to make it happen. 

At Heath Outdoor, we’re also committed to giving back to the community, through our Juneteenth service project, annual participation in the Indy Pride parade, Indy Cultural Trail Cleanup and Feast of Lanterns sponsorship and neighborhood beautification efforts.

The Hurst Brothers family of companies

Heath Outdoor is a Hurst Brothers company. Other brands in the Hurst Brothers family of companies include: DIGS Garden Center, Indy Insulation and Spray Company and Spotts Garden Service.

Ready to transform your outdoor space?

 
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