
Weed Control · Missouri
How to Kill Creeping Charlie and Wild Violet in Missouri
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
Lawn care built for Missouri: Turf-Type Tall Fescue maintenance, regional weed and disease control, and a season-by-season calendar for USDA zones 5b–7a.
Dominant Grass
Turf-Type Tall Fescue
USDA Zones
5b–7a
Soil
Claypan silt loams across the northern and central plains, cherty rocky ground through the Ozarks, and deep loess along the Missouri and Mississippi bluffs
Humidity
High in summer — St. Louis and Kansas City both sit under heavy July humidity, and that is the practical reason brown patch is the disease that decides a Missouri tall fescue lawn. The state is a transition-zone squeeze from both ends: summers humid enough for warm-season disease pressure, winters cold enough that the warm-season grasses which would shrug it off go dormant for five months.

Weed Control · Missouri
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.

Weed Control · Missouri
Dallisgrass and crabgrass look alike and need opposite strategies: crabgrass dies at frost, dallisgrass comes back from the same crown for years.

Weed Control · Missouri
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 · Missouri
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 · Missouri
Killing dandelions without killing grass comes down to the taproot: the selective herbicides that reach it, and the month they actually work.

Weed Control · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
Most lawns never reach the grub treatment threshold, so count before you buy — and curative products only work from August through October.

Lawn Diseases · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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 · Missouri
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.
What your Turf-Type Tall Fescue lawn needs, season by season.
Spring
Summer
Fall
Winter
Three things every guide here eventually sends you to do — and all three answers are specific to Missouri 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:
MU Soil and Plant Testing LaboratoryPhosphorus recommendations for Missouri lawns are issued off the soil test result rather than a standard rate, so the test is the step that decides whether a phosphorus product belongs on the lawn at all.
Why the number matters more than the bag: soil pH in Missouri.
Turfgrass research
Every guide here defers to your own land-grant programme somewhere. This is it:
MU Extension Turfgrass ScienceUniversity of Missouri
The publication numbers are worth knowing here because the site is easier to search by them: G6955 (Improving Lawn and Landscape Soils) is the one to read before buying any amendment, G9000 indexes the county soil surveys, and G9011 covers the Delta soils of the south-east, which behave nothing like the rest of the state. Soil samples go to the University of Missouri Soil and Plant Testing Laboratory at Mumford Hall in Columbia, usually routed through a county office.
Where their advice and a national rule of thumb disagree, follow theirs — they trialled it in 5b–7a.
Pesticide regulation
Pesticide authority sits with the state department of agriculture:
Missouri Department of AgricultureBureau of Pesticide Control
Restrictions we found printed on labels: Missouri product restrictions.
Hyper-local drought regulations and watering schedules for major metropolitan areas in Missouri.
Lawn Health Newsletter
Pre-emergent windows, disease alerts and fertilization schedules for your region — one short email, right when your lawn needs it.
Free forever. Unsubscribe anytime. US lawns only (for now). This season's companion: the printable summer checklist.