Headworks Portland Wtr B 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 | Apply crabgrass pre-emergent · Light feeding after green-up |
| April | Light feeding after green-up |
| May | Mow high (3–3.5″); water deeply in dry spells; no feeding in heat |
| 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 | Mow high (3–3.5″); water deeply in dry spells; no feeding in heat |
| September | Aerate + overseed · Main fall feeding |
| October | Aerate + overseed · Main fall feeding · Winterizer feeding |
| November | Winterizer feeding · Final mow of the year |
| December | Final mow of the year |
Reading the Headworks Portland Wtr B lawn year
Headworks Portland Wtr B 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 Sep 19 – Oct 4, and the year's main feeding all land before the Nov 18 frost closes the year.
Grasses that fit Headworks Portland Wtr B
Frequently asked questions
When should I overseed my lawn in Headworks Portland Wtr B?
For cool-season grass (bluegrass, fescue, ryegrass), overseed in early fall — in Headworks Portland Wtr B that means roughly Sep 19 – Oct 4, timed 45–60 days before the average first fall frost (Nov 18) so seedlings establish before cold. Spring works as a backup but collides with crabgrass season.
When do I put down crabgrass preventer in Headworks Portland Wtr B?
Aim for Mar 6 – Mar 27 — the estimated stretch when Headworks Portland Wtr B soil approaches the ~55°F germination threshold, anchored to the average last frost (Mar 27). 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 Headworks Portland Wtr B?
Keep mowing as long as the grass grows — in Headworks Portland Wtr B that's typically until Nov 11 – Dec 2, around the average first fall frost (Nov 18). Take the final cut slightly shorter to discourage snow mold.
What grass grows best in Headworks Portland Wtr B?
Oregon is cool-season country: Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescue. See the grass guides linked below for identification and care.