Weed Control · Tennessee
How to Kill Creeping Charlie and Wild Violet in Tennessee
Creeping Charlie and wild violet shrug off standard three-way weed killer for two different reasons. Both answer to triclopyr — and to October, not spring.
Regional Hub
Tennessee Lawn Care
Lawn care built for Tennessee: Tall Fescue maintenance, regional weed and disease control, and a season-by-season calendar for USDA zones 6a–8a.
Dominant Grass
Tall Fescue
USDA Zones
6a–8a
Soil
Three different states in one: wind-blown loess deep enough to farm around Memphis, thin clay over limestone and cedar glade in Middle Tennessee, and stony acidic mountain soils east of the plateau
Humidity
High in summer, and the reason this state is hard on cool-season grass: Memphis and Nashville are famously muggy, which pushes tall fescue past its comfort while the winters stay cold enough to keep bermuda dormant for months. Late-summer dry snaps arriving on top of that humidity are what actually thin a Tennessee fescue lawn — the disease gets in during the wet weeks and the drought finishes what it started.
Weed Control in Tennessee
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Weed Control · Tennessee
Dallisgrass vs Crabgrass: One Comes Back Every Year in Tennessee
Dallisgrass and crabgrass look alike and need opposite strategies: crabgrass dies at frost, dallisgrass comes back from the same crown for years.
Weed Control · Tennessee
How to Get Rid of Crabgrass: Timing Beats Chemicals in Tennessee
Crabgrass is a timing problem — but one pre-emergent pass is not a whole season. UF/IFAS: season-long control takes a second application 6–9 weeks later.
Weed Control · Tennessee
How to Get Rid of Nutsedge: One Pull Does Nothing in Tennessee
Nutsedge ignores ordinary weed killer because it is a sedge. UC IPM: one pull does nothing — but pulling every 2 to 3 weeks drains the tuber underneath it.
Weed Control · Tennessee
Kill Dandelions Without Killing Grass — For Good in Tennessee
Killing dandelions without killing grass comes down to the taproot: the selective herbicides that reach it, and the month they actually work.
Weed Control · Tennessee
Spring Weed Control: Soil Temp, Not the Calendar in Tennessee
Spring weed control is decided by soil temperature, not the calendar — a pre-emergent applied two weeks late does nothing at all. The trigger, and the plan.
Lawn Diseases in Tennessee
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Lawn Diseases · Tennessee
Gray Leaf Spot: One Name, Three Different Diseases in Tennessee
NC State: perennial ryegrass loses turf in a few days, St. Augustine is the most resistant host. Same pathogen — so your grass decides how worried to be.
Lawn Diseases · Tennessee
Voles in the Lawn: The Runways Fix Themselves in Tennessee
Melting snow reveals the runways, and the voles usually left with it. Illinois says the lawn regrows by summer — the damage worth acting on is on your trees.
Lawn Diseases · Tennessee
Lawn Disease After Flooding: What Follows the Water in Tennessee
Flooding moves the pathogen, stresses the plant and leaves the leaf wet. The hour thresholds that trigger Pythium and brown patch, and why nitrogen cuts both ways.
Lawn Diseases · Tennessee
Dollar Spot Treatment: The Disease Nitrogen Fixes in Tennessee
Dollar spot is the one lawn disease caused by too little nitrogen, not too much — the exception to every other fungus guide here. The hourglass lesion confirms it.
Lawn Diseases · Tennessee
Armyworms and Sod Webworms: Which Ate Your Lawn? in Tennessee
Green to brown in two days means armyworms; closely cropped patches mean sod webworms. Both are caterpillars — which rules out most grub products.
Lawn Diseases · Tennessee
Chinch Bugs: How to Confirm Them and What Kills Them in Tennessee
Chinch bugs: two species, two grass families, and a float test that confirms them in five minutes. Plus the documented resistance nobody prints on the bottle.
Lawn Diseases · Tennessee
Fire Ants in Lawns: Kill the Colony, Not the Mound in Tennessee
Treating fire ants in lawns by drenching the mound kills workers and moves the colony. Bait reaches the queen — that difference is why most attempts fail.
Lawn Diseases · Tennessee
Lawn Grubs: How and When to Kill Them in Tennessee
Most lawns never reach the grub treatment threshold, so count before you buy — and curative products only work from August through October.
Lawn Diseases · Tennessee
Brown Patch Treatment: Fungicide Alone Won't Fix It in Tennessee
Brown patch treatment needs two things: the right fungicide, and the summer nitrogen habit that caused it. Fungicide alone buys you a repeat next July.
Lawn Diseases · Tennessee
Snow Mold Treatment: It Grew Under the Snow in Tennessee
Snow mold treatment is mostly about the autumn before: gray and pink snow mold grew under the snow, so what you see in March is already finished damage.
Grass Types in Tennessee
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Grass Types · Tennessee
Fine Fescue Lawn Care: The Grass That Wants Less in Tennessee
Penn State lists high nitrogen among the conditions fine fescue is not adapted to — beside heavy traffic. It is the one lawn grass you can spoil.
Grass Types · Tennessee
Perennial Ryegrass: The Fastest Grass, and Its Price in Tennessee
Penn State: it germinates in 5 to 7 days and is very competitive with other turfgrasses. Both halves decide what care this lawn costs you.
Grass Types · Tennessee
Zoysia Grass Care: The Grass Nobody Defaults To in Tennessee
Zoysia is a secondary grass in 25 states and the dominant one in none. You choose it deliberately — and three of its costs are never on the sod invoice.
Grass Types · Tennessee
Kentucky Bluegrass Care: It Repairs Its Own Damage in Tennessee
Kentucky bluegrass repairs its own damage and browns in August for the same reason — rhizomes. Mow at 3 inches, feed in autumn, count the dormancy weeks.
Grass Types · Tennessee
Tall Fescue Lawn Care: Deep Roots, No Self-Repair in Tennessee
Tall fescue lawn care is one trade-off: the most heat-tolerant cool-season grass, but it never repairs itself and brown patch waits every summer.
Grass Types · Tennessee
Growing Grass in Shade: The Two-Hour Minimum in Tennessee
Growing grass in shade has a hard floor: fine fescue is the most shade-tolerant lawn grass and still needs two hours of direct sun. Below that, no seed works.
Grass Types · Tennessee
Bermuda Grass Care: Mow It Lower Than You Think in Tennessee
Bermuda grass care starts with mowing lower than feels right — 1 to 2 inches. Plus when to scalp, how much nitrogen it takes, and the schedule that works.
Grass Types · Tennessee
St. Augustine Care: Mow High, Watch for Chinch Bugs in Tennessee
St. Augustine grass care: mow high, watch for chinch bugs, and know it cannot be seeded — only sod, plugs or sprigs. Plus the herbicides that damage it.
Grass Types · Tennessee
St. Augustine vs Zoysia: Shade or Traffic Decides in Tennessee
St. Augustine vs zoysia comes down to two questions: how much shade, and how much foot traffic. One tolerates each — and they are not the same grass.
Fertilizer in Tennessee
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Fertilizer · Tennessee
Winterizer Fertilizer: Right Idea, Wrong Bag in Tennessee
Purdue backs late-fall nitrogen and faults the bags: rates run too low, the potassium needs a soil test to justify — and warm-season lawns should skip it entirely.
Fertilizer · Tennessee
Lawn Soil pH: When to Lime, When to Add Sulfur in Tennessee
Lawn soil pH decides whether lime or sulfur is the fix — and the right answer inverts between Georgia and Arizona. What the soil test number means.
Fertilizer · Tennessee
When to Weed and Feed: Two Bags Often Beat One in Tennessee
Weed and feed does two jobs on two different calendars, so one bag rarely times both right. The month it works, and the lawns the label forbids.
Fertilizer · Tennessee
When to Fertilize: Autumn Matters More Than Spring in Tennessee
When to fertilize a lawn: autumn matters more than spring for cool-season grass, the reverse for warm-season — plus the state laws that close the window.
Fertilizer · Tennessee
Why Is My Lawn Yellow? 9 Causes, Not Just Nitrogen in Tennessee
Your lawn is yellow and nitrogen is only one of nine causes — feeding the wrong one wastes a season. Diagnose by pattern, blade and timing first.
Lawn Care Guides in Tennessee
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Lawn Care Guides · Tennessee
Dormant Seeding: The Backup Window After You Missed Fall in Tennessee
Purdue's data: dormant seeding beats spring and trails September only slightly. The rule is cold enough not to germinate — Thanksgiving through March, not October.
Lawn Care Guides · Tennessee
Lawn Recovery After Flooding: The Clock Starts Underwater in Tennessee
How long turf survives underwater, why the damage shows up days later, the 1-inch silt rule, and the survival percentage at which replanting beats rescuing.
Lawn Care Guides · Tennessee
Lawn Ruts After Storm Cleanup: What Repairs, What Doesn't in Tennessee
Shallow ruts take a ¼-inch topdressing; deep subsoil compaction from heavy equipment on saturated ground is, in Penn State's words, practically permanent.
Lawn Care Guides · Tennessee
Waterlogged Lawn: Test It Before You Fix It in Tennessee
Water standing after every rain has four possible causes and they need different fixes. A 15-minute hole test tells you which one you have before you spend money.
Lawn Care Guides · Tennessee
When to Stop Mowing the Lawn: Watch 50°F, Not the Calendar in Tennessee
Cool-season grass stops growing when daytime highs stay below 50°F — that's the last-mow trigger. Too tall into winter invites disease; scalping is worse.
Lawn Care Guides · Tennessee
Winter Lawn Care: The Damage Happens in February in Tennessee
Penn State: crown hydration is the most common and destructive winter injury, and it happens in late winter after thawing and freezing — not in the deep cold.
Lawn Care Guides · Tennessee
Summer Lawn Care: What Helps and What Hurts in Tennessee
Summer lawn care inverts by grass type: feeding a warm-season lawn is routine; feeding a cool-season lawn is the classic mistake.
Lawn Care Guides · Tennessee
Fall Lawn Care: What to Do, and in What Order in Tennessee
Fall lawn care is the one season when doing more genuinely pays — for cool-season grass. On a warm-season lawn, autumn is mostly about stopping.
Lawn Care Guides · Tennessee
How to Aerate a Lawn: Spike Tools Make It Worse in Tennessee
How to aerate a lawn, and when not to: spike tools compact the soil they punch through, core aeration pulls plugs out, and most lawns need it rarely.
Lawn Care Guides · Tennessee
How to Fix Bare Spots in a Lawn — Or Leave Them in Tennessee
A bare spot smaller than your fist closes on its own. The bigger ones are a symptom — and the shape of the spot tells you which cause to fix first.
Lawn Care Guides · Tennessee
Lawn Mowing Height: Your Deck Setting Is Lying in Tennessee
Your deck setting is not your lawn mowing height — measure it once and most people find they cut lower than they think. The real number by species.
Lawn Care Guides · Tennessee
Should You Bag Grass Clippings? It Costs Nitrogen in Tennessee
Bagging grass clippings throws away up to a quarter of your lawn's nitrogen — and clippings do not cause thatch. The three times bagging is still right.
Lawn Care Guides · Tennessee
Spring Lawn Care: Do Less, and Do It Later in Tennessee
Most spring lawn damage is done in March by people being helpful. Spring lawn care runs on soil temperature, not the calendar — and the order matters.
Lawn Care Guides · Tennessee
When to Overseed Your Lawn — and When Not to Bother in Tennessee
When to overseed: late summer beats spring for cool-season lawns, most warm-season lawns should not be overseeded at all — and pre-emergent blocks your seed.
Lawn Care Guides · Tennessee
How Often to Water Your Lawn: Twice Beats Daily in Tennessee
How often to water a lawn: twice a week beats every morning, and one inch a week beats guessing. Measure your own sprinkler — the timer is not telling you.
Product Reviews in Tennessee
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Product Reviews · Tennessee
Best Weed Killer for Lawns: Match It to the Weed in Tennessee
There is no best weed killer for lawns, only the right one for your weed: the seven chemistries that matter, what each kills, and the one that kills grass too.
Product Reviews · Tennessee
Organic Weed Killer for Lawns: The One That Works in Tennessee
The organic weed killer that works on lawns is iron — it burns broadleaf weeds and moss in hours without harming grass. What it won't do: kill the roots.
Tennessee Lawn Calendar
What your Tall Fescue lawn needs, season by season.
Spring
- Pre-emergent sweeps west to east — Memphis in early March, Knoxville three weeks later
- Lime only east of the plateau; Middle Tennessee limestone counties rarely need it
- Hold spring nitrogen on fescue to a minimum — the fall feeding is the one that counts
- Green-up feeding for Memphis zoysia and bermuda from late April
Summer
- Brown patch watch on fescue every humid week — preventive fungicide often pays
- Mow fescue at 4 inches in summer heat
- Feed warm-season lawns monthly through August
- Scout for armyworm moths and egg masses in late July
Fall
- Aerate and overseed fescue mid-September to mid-October
- Feed fescue September, October and November
- Fall pre-emergent for Poa annua on warm-season lawns
- Soil test before liming — the answer differs by grand division, not by state
Winter
- Spot-spray wild garlic and henbit on mild days
- No nitrogen on dormant warm-season turf
- Soil test through UT Extension
- Sharpen blades; brown patch spreads on ragged cuts
Official Tennessee resources
Three things every guide here eventually sends you to do — and all three answers are specific to Tennessee rather than national: test your soil, read your own land-grant programme, and check whether the state has added anything to a product's federal label.
Soil testing
The land-grant lab that tests soil for residents here:
UT Soil, Plant and Pest CenterSamples go to the UT Soil, Plant and Pest Center with a Soil and Media Information Sheet and payment, which can be made by card through the UT Institute of Agriculture eMarketplace rather than by cheque in the envelope. The current fee is printed on that information sheet rather than quoted here — it changes, and a stale number is worse than none. A county Extension office will hand you the sheet and the box.
Why the number matters more than the bag: soil pH in Tennessee.
Turfgrass research
Every guide here defers to your own land-grant programme somewhere. This is it:
UT Turfgrass ScienceUniversity of Tennessee Institute of Agriculture
Describes itself as bringing "together education, research, and Extension to support the turfgrass industry in Tennessee and beyond", and two things it publishes are worth having: a Mobile Weed Manual — weed identification built for a phone in the yard rather than a PDF at a desk — and PB 1920, the Property Maintenance Calendar. The phone-first weed tool is the right instrument for a transition-zone state where the same lawn can carry cool-season and warm-season weeds in one year.
Where their advice and a national rule of thumb disagree, follow theirs — they trialled it in 6a–8a.
Pesticide regulation
Pesticide authority sits with the state department of agriculture:
Tennessee Department of AgriculturePesticides Section
Restrictions we found printed on labels: Tennessee product restrictions.
Municipal Watering Restrictions & Microclimates
Hyper-local drought regulations and watering schedules for major metropolitan areas in Tennessee.
Lawn Health Newsletter
Seasonal lawn reminders, on time
Pre-emergent windows, disease alerts and fertilization schedules for your region — one short email, right when your lawn needs it.
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