Fertilizer & Weed Control Services in St. Joseph MO

TK Lawn & Landscaping provides professional fertilization and weed control services for residential and commercial properties in St. Joseph, Savannah, and northwest Missouri.

Phone: (816) 617-1273

Service Areas

TK Lawn & Landscaping is based in Savannah, MO and serves St. Joseph and surrounding communities including Savannah, Maryville, and Kearney. Our crews service properties throughout Buchanan County and northwest Missouri on regular schedules.

How Lawn Fertilization Works

Lawn fertilization builds dense, deep-rooted turfgrass that crowds out weeds, resists disease, and recovers from drought and traffic. The three primary nutrients in fertilization programs each play a specific role:

• Nitrogen (N): drives leaf and shoot growth, responsible for deep green color. Too much at once burns the lawn; too little leaves it pale and weak.
• Phosphorus (P): supports root development, especially important for newly seeded areas and young turf establishing roots in clay soils.
• Potassium (K): builds overall plant strength and stress tolerance, helping turfgrass handle Missouri’s summer heat and winter cold.

Fertilization Schedule for St. Joseph MO Lawns

Cool-season turfgrass in the St. Joseph area typically benefits from four to five fertilizer applications per year, timed throughout the growing season:

• Early spring: light feeding as lawn wakes from dormancy, promoting green-up without excessive growth
• Late spring: fuller feeding supporting active growth during peak spring growth
• Summer: light or no feeding during peak heat; heavy nitrogen stresses cool-season grasses in summer
• Early fall: the most important feeding of the year, when turfgrass actively grows and stores energy for winter
• Late fall (winterizer): slow-release nitrogen supporting root hardening and spring startup

Pre-Emergent Weed Control

Pre-emergent herbicide applications create a chemical barrier in the upper soil layer that prevents weed seeds from germinating. Timing to soil temperature is critical.

• Spring pre-emergent: applied when soil temperatures reach approximately 55 degrees Fahrenheit at 4-inch depth, typically late March to mid-April in St. Joseph. Targets crabgrass, goosegrass, and other summer annual weeds.
• Fall pre-emergent: applied in early fall to prevent winter annual weeds like annual bluegrass and chickweed from germinating.

Post-Emergent Weed Control

Post-emergent herbicide applications target weeds already actively growing. These treatments are absorbed through leaves and stems and kill the weed from inside out.

Common Broadleaf Weeds in St. Joseph MO Lawns

• Dandelion: the most widespread broadleaf weed in the area, responds well to post-emergent treatment during active spring and fall growth
• Clover: low-growing, nitrogen-fixing weed that spreads fast in thin lawns
• Ground ivy: also called creeping Charlie, a persistent mat-forming weed that thrives in moist, shaded areas
• Chickweed: cool-season annual appearing in early spring and late fall
• Nutsedge: a sedge, not a true grass, that grows faster than surrounding turf and requires targeted treatment

How Weed Control & Fertilization Work Together

Weed control eliminates competition. Fertilization builds density. Together, they create conditions where turfgrass wins. A thick, dense lawn is the best long-term weed control, as weeds cannot establish where grass already holds the soil and light.

Programs are structured so weed control and fertilization treatments support each other through the season. Eliminating weeds in spring creates space for grass to fill in. Feeding grass in fall builds the density to prevent re-invasion next year.

Pairing Weed Control with Core Aeration

St. Joseph’s heavy clay soils limit how well fertilization treatments reach root zones. Nutrients applied to compacted soil often sit on the surface instead of moving where roots can absorb them. Core aeration opens channels in the soil that allow fertilization to penetrate directly to the root zone, making every nutrient application more effective.

Core aeration paired with overseeding and fall fertilization is the most impactful single lawn service. This combination rebuilds thin lawns, breaks up compaction, thickens turf, and delivers nutrients exactly where they are needed.

About TK Lawn & Landscaping

Trent and Kay Dunnihoo founded TK Lawn & Landscaping in 2014. This is a family-owned, locally operated company that builds fertilization and weed control programs based on what each lawn actually needs, not a generic schedule applied to every property the same way.

TK Lawn & Landscaping is a BBB Accredited Business since November 30, 2023.

Customer Reviews

“Trent and his team did a great job! Added excellent curb appeal to our home. Very courteous and professional. I highly recommend them.”

— Germain Pickman ★★★★★

“TK Lawn and Landscaping did a great job! Trent was very easy to work with and the crew was very efficient. Highly recommend!”

— Brenda Orscheln ★★★★★

“We used TK Lawn And Landscaping to aerate and reseed.”

— B.S., St. Joseph, MO — via Nextdoor

Read our reviews on BBB and Nextdoor.

When Should You Apply Pre-Emergent Weed Control?

Pre-emergent weed control should be applied in early spring when soil temperatures reach approximately 55 degrees Fahrenheit at a 4-inch depth, typically late March through mid-April in St. Joseph. This timing stops crabgrass and other annual grassy weeds before they germinate. A second application in early fall targets winter annual weeds. Timing is critical, as applying too early or too late significantly reduces effectiveness.

What Are the Most Common Weeds in St. Joseph MO?

The most common lawn weeds in the St. Joseph area include crabgrass, dandelion, clover, ground ivy, chickweed, and nutsedge. Crabgrass is the most widespread summer annual weed and requires pre-emergent treatment timed to spring soil temperatures. Broadleaf weeds like dandelion and clover respond well to post-emergent herbicide applications during active growth in spring and fall.

How Many Times Per Year Should Lawns Be Fertilized?

Cool-season turfgrass lawns in St. Joseph typically benefit from four to five fertilizer applications per year, spaced through the growing season to match the grass’s nutritional needs. Fall applications are most critical for cool-season grasses like tall fescue and Kentucky bluegrass, as this is when roots actively build density heading into winter.

What Is the Difference Between Pre-Emergent and Post-Emergent Weed Control?

Pre-emergent weed control creates a chemical barrier in the soil that prevents weed seeds from germinating. It stops weeds before they sprout. Post-emergent weed control is applied to weeds already growing and kills existing plants through herbicide uptake. Most effective programs use both together: pre-emergent to prevent new weeds and post-emergent to eliminate existing ones.

Can Fertilization and Weed Control Alone Fix a Thin Lawn?

Fertilization and weed control are essential for lawn health but cannot by themselves fill in thin or bare areas. Bare patches need overseeding, the introduction of new grass seed to physically fill those spaces. For best results, combine fall core aeration with overseeding and a proper fertilization program. This combination rebuilds thin lawns over one to two growing seasons.

Start Your Fertilization & Weed Control Program Today

Contact TK Lawn & Landscaping to schedule your fertilization and weed control program for St. Joseph MO.

TK Lawn & Landscaping

905 S 4th Terrace, Savannah, MO 64485

Phone: (816) 617-1273

Email: tklawns99@gmail.com

Website: tklawnlandscaping.com

Hours: Monday–Friday 8:00 AM – 5:00 PM | Saturday 9:00 AM – 5:00 PM | Sunday Closed

Proudly serving St. Joseph, Savannah, Maryville, Kearney, and surrounding areas in northwest Missouri.