Mattoon Coles Co Airport, IL Lawn Care Calendar

Every timing-sensitive lawn job in Mattoon Coles Co Airport, timed to the local climate record — not a national average.

Turf region
Cool-season
Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescue
Last spring frost
Apr 15
median, 1991–2020
First fall frost
Oct 24
median, 1991–2020
Growing stretch
192 days
frost to frost
TaskMattoon Coles Co Airport windowWhy then
Crabgrass pre-emergent Mar 25 – Apr 15 Soil nearing 55°F — must beat germination
Light spring feeding Apr 15 – May 13 After green-up, before summer stress
Aerate + overseed Aug 25 – Sep 9 Fall growth surge; established before cold
Main fall feeding Aug 29 – Sep 26 The year’s most important nitrogen
Winterizer feeding Sep 26 – Oct 10 Root reserves for spring green-up
Final mow Oct 17 – Nov 7 Growth stops around first frost

Anchored to NOAA 1991–2020 climate normals at the MATTOON COLES CO AP station. Windows are estimates — soil temperature is the real trigger, especially for pre-emergent. Check your own ZIP with the lawn calendar lookup.

Mattoon Coles Co Airport lawn care, month by month

MonthTasks
January Dormant — keep leaves cleared, stay off frozen turf
February Dormant — keep leaves cleared, stay off frozen turf
March Apply crabgrass pre-emergent
April Apply crabgrass pre-emergent · Light feeding after green-up
May Light feeding after green-up
June Mow high (3–3.5″); water deeply in dry spells; no feeding in heat
July Mow high (3–3.5″); water deeply in dry spells; no feeding in heat
August Aerate + overseed · Main fall feeding
September Aerate + overseed · Main fall feeding · Winterizer feeding
October Winterizer feeding · Final mow of the year
November Final mow of the year
December Dormant — keep leaves cleared, stay off frozen turf

Reading the Mattoon Coles Co Airport lawn year

Mattoon Coles Co Airport runs on the classic northern rhythm: a short, important spring (pre-emergent before soil hits 55°F, one light feeding), a defensive summer (mow tall, water deep, feed nothing), and then the season that actually builds a lawn — early fall, when aeration, overseeding around Aug 25 – Sep 9, and the year's main feeding all land before the Oct 24 frost closes the year.

Grasses that fit Mattoon Coles Co Airport

Frequently asked questions

When should I overseed my lawn in Mattoon Coles Co Airport?

For cool-season grass (bluegrass, fescue, ryegrass), overseed in early fall — in Mattoon Coles Co Airport that means roughly Aug 25 – Sep 9, timed 45–60 days before the average first fall frost (Oct 24) so seedlings establish before cold. Spring works as a backup but collides with crabgrass season.

When do I put down crabgrass preventer in Mattoon Coles Co Airport?

Aim for Mar 25 – Apr 15 — the estimated stretch when Mattoon Coles Co Airport soil approaches the ~55°F germination threshold, anchored to the average last frost (Apr 15). It's an estimate: a soil thermometer reading 50–55°F at 2″ depth for several days is the precise trigger, and pre-emergent must go down before crabgrass sprouts, not after.

When should I stop mowing in Mattoon Coles Co Airport?

Keep mowing as long as the grass grows — in Mattoon Coles Co Airport that's typically until Oct 17 – Nov 7, around the average first fall frost (Oct 24). Take the final cut slightly shorter to discourage snow mold.

What grass grows best in Mattoon Coles Co Airport?

Illinois is cool-season country: Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescue. See the grass guides linked below for identification and care.