Weed Control · Maine
How to Kill Creeping Charlie and Wild Violet in Maine
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
Maine Lawn Care
Lawn care built for Maine: Kentucky Bluegrass maintenance, regional weed and disease control, and a season-by-season calendar for USDA zones 3b–6a.
Dominant Grass
Kentucky Bluegrass
USDA Zones
3b–6a
Soil
Thin, strongly acidic glacial till over bedrock across most of the interior (blueberry-barren country in the east); sandy outwash along the river valleys and the southern coastal plain
Humidity
Humid in summer but the season is short; long-lasting snow cover and a late spring matter more to a Maine lawn than August humidity does
Weed Control in Maine
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Weed Control · Maine
How to Get Rid of Crabgrass: Timing Beats Chemicals in Maine
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 · Maine
How to Get Rid of Nutsedge: One Pull Does Nothing in Maine
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 · Maine
Kill Dandelions Without Killing Grass — For Good in Maine
Killing dandelions without killing grass comes down to the taproot: the selective herbicides that reach it, and the month they actually work.
Weed Control · Maine
Spring Weed Control: Soil Temp, Not the Calendar in Maine
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 Maine
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Lawn Diseases · Maine
Red Thread: The Lawn Is Telling You It Is Hungry in Maine
Penn State: in most situations red thread is not severe enough to warrant fungicide. It is a nitrogen reading — and the fix is feeding, not spraying.
Lawn Diseases · Maine
Voles in the Lawn: The Runways Fix Themselves in Maine
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 · Maine
Lawn Disease After Flooding: What Follows the Water in Maine
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 · Maine
Dollar Spot Treatment: The Disease Nitrogen Fixes in Maine
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 · Maine
Armyworms and Sod Webworms: Which Ate Your Lawn? in Maine
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 · Maine
Chinch Bugs: How to Confirm Them and What Kills Them in Maine
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 · Maine
Lawn Grubs: How and When to Kill Them in Maine
Most lawns never reach the grub treatment threshold, so count before you buy — and curative products only work from August through October.
Lawn Diseases · Maine
Brown Patch Treatment: Fungicide Alone Won't Fix It in Maine
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 · Maine
Snow Mold Treatment: It Grew Under the Snow in Maine
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 Maine
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Grass Types · Maine
Fine Fescue Lawn Care: The Grass That Wants Less in Maine
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 · Maine
Perennial Ryegrass: The Fastest Grass, and Its Price in Maine
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 · Maine
Kentucky Bluegrass Care: It Repairs Its Own Damage in Maine
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 · Maine
Tall Fescue Lawn Care: Deep Roots, No Self-Repair in Maine
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 · Maine
Growing Grass in Shade: The Two-Hour Minimum in Maine
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.
Fertilizer in Maine
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Fertilizer · Maine
Winterizer Fertilizer: Right Idea, Wrong Bag in Maine
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 · Maine
Lawn Soil pH: When to Lime, When to Add Sulfur in Maine
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 · Maine
When to Weed and Feed: Two Bags Often Beat One in Maine
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 · Maine
When to Fertilize: Autumn Matters More Than Spring in Maine
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 · Maine
Why Is My Lawn Yellow? 9 Causes, Not Just Nitrogen in Maine
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 Maine
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Lawn Care Guides · Maine
Dormant Seeding: The Backup Window After You Missed Fall in Maine
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 · Maine
Lawn Recovery After Flooding: The Clock Starts Underwater in Maine
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 · Maine
Lawn Ruts After Storm Cleanup: What Repairs, What Doesn't in Maine
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 · Maine
Waterlogged Lawn: Test It Before You Fix It in Maine
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 · Maine
When to Stop Mowing the Lawn: Watch 50°F, Not the Calendar in Maine
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 · Maine
Winter Lawn Care: The Damage Happens in February in Maine
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 · Maine
Summer Lawn Care: What Helps and What Hurts in Maine
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 · Maine
Fall Lawn Care: What to Do, and in What Order in Maine
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 · Maine
How to Aerate a Lawn: Spike Tools Make It Worse in Maine
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 · Maine
How to Fix Bare Spots in a Lawn — Or Leave Them in Maine
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 · Maine
Lawn Mowing Height: Your Deck Setting Is Lying in Maine
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 · Maine
Should You Bag Grass Clippings? It Costs Nitrogen in Maine
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 · Maine
Spring Lawn Care: Do Less, and Do It Later in Maine
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 · Maine
When to Overseed Your Lawn — and When Not to Bother in Maine
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 · Maine
How Often to Water Your Lawn: Twice Beats Daily in Maine
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 Maine
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Product Reviews · Maine
Best Weed Killer for Lawns: Match It to the Weed in Maine
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 · Maine
Organic Weed Killer for Lawns: The One That Works in Maine
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.
Maine Lawn Calendar
What your Kentucky Bluegrass lawn needs, season by season.
Spring
- Rake open snow-mould patches at melt and overseed the dead areas; the damage was done the previous November
- Rake and reseed vole runways rather than treating for anything
- Hold any nitrogen until after spring green-up — UMaine's May application is explicitly the remainder, not the opener
- Match lime to your species, not to a statewide rule: red fescue is content at pH 5.5, Kentucky bluegrass wants 6.0 to 7.0
Summer
- Mow at three inches or more where the lawn is tall fescue or ryegrass
- Stay inside two pounds of nitrogen per 1,000 sq ft for the whole year — that is the ceiling, not a target
- Let an unirrigated lawn go dormant in a dry July; the season is too short to fight it
- Check your town before buying anything: 28 Maine jurisdictions restrict pesticides, and in some of them a synthetic product is not lawful on your own lawn
Fall
- August 15 to September 15 is the single most useful fortnight of the Maine lawn year — feed and seed in it
- Take a soil test now; the free kit comes from the county Extension office and the lab needs two to four weeks
- Lime after the test, so the freeze-thaw cycle works it in over winter
- Get leaves off before lasting snow: matted leaves under snow are where snow mould begins
Winter
- Nothing goes down — the ground is frozen or covered, and mud season is when it would move
- Keep plough piles off the turf where you can; the last snow to melt holds mould the longest
- Expect desiccation on wind-scoured ridges and shore-facing lawns where snow blows clear
- Read your municipal land management ordinance over the winter rather than in May, if you live in one of the towns that has one
Official Maine resources
Three things every guide here eventually sends you to do — and all three answers are specific to Maine 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:
University of Maine Analytical Laboratory and Maine Soil Testing Service, OronoThe kit is free from any county Extension office — order form, instructions and a collapsible cardboard box to post the sample in. A standard test is about $20 and results take two to four weeks, so this is autumn paperwork rather than a same-week answer. It is also the laboratory test that satisfies the phosphorus exception at the till.
Why the number matters more than the bag: soil pH in Maine.
Turfgrass research
Every guide here defers to your own land-grant programme somewhere. This is it:
UMaine Extension Garden and Yard — home lawnsUniversity of Maine Cooperative Extension
The operative documents are Bulletin 2367 on establishing a home lawn in Maine, Bulletin 2243 on maintaining one, and Bulletin 2166 on low-input lawns — the last of which is the most useful in the towns where synthetic products are restricted.
Where their advice and a national rule of thumb disagree, follow theirs — they trialled it in 3b–6a.
Pesticide regulation
Pesticide authority sits with the state department of agriculture:
Maine Department of Agriculture, Conservation and ForestryBoard of Pesticides Control
Decisions are made by a seven-member public board, not by departmental staff, so Maine's pesticide policy has a standing public venue that most states do not. It is also worth checking your own town: the state rule is the floor, and 28 Maine jurisdictions sit above it.
Restrictions we found printed on labels: Maine product restrictions.
Lawn Health Newsletter
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Pre-emergent windows, disease alerts and fertilization schedules for your region — one short email, right when your lawn needs it.
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