Old Mission 3SSW lawn care, month by month
| Month | Tasks |
|---|---|
| January | Dormant — keep leaves cleared, stay off frozen turf |
| February | Dormant — keep leaves cleared, stay off frozen turf |
| March | Dormant — keep leaves cleared, stay off frozen turf |
| April | Apply crabgrass pre-emergent |
| May | Apply crabgrass pre-emergent · Light feeding after green-up |
| June | Light feeding after green-up |
| 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 Old Mission 3SSW lawn year
Old Mission 3SSW 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 20 – Sep 4, and the year's main feeding all land before the Oct 19 frost closes the year.
Grasses that fit Old Mission 3SSW
Frequently asked questions
When should I overseed my lawn in Old Mission 3SSW?
For cool-season grass (bluegrass, fescue, ryegrass), overseed in early fall — in Old Mission 3SSW that means roughly Aug 20 – Sep 4, timed 45–60 days before the average first fall frost (Oct 19) so seedlings establish before cold. Spring works as a backup but collides with crabgrass season.
When do I put down crabgrass preventer in Old Mission 3SSW?
Aim for Apr 22 – May 13 — the estimated stretch when Old Mission 3SSW soil approaches the ~55°F germination threshold, anchored to the average last frost (May 13). 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 Old Mission 3SSW?
Keep mowing as long as the grass grows — in Old Mission 3SSW that's typically until Oct 12 – Nov 2, around the average first fall frost (Oct 19). Take the final cut slightly shorter to discourage snow mold.
What grass grows best in Old Mission 3SSW?
Michigan is cool-season country: Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescue. See the grass guides linked below for identification and care.