Rio Grande Rsvr 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 | Dormant — keep leaves cleared, stay off frozen turf |
| May | Apply crabgrass pre-emergent |
| June | Apply crabgrass pre-emergent · Light feeding after green-up |
| July | Light feeding after green-up · Aerate + overseed · Main fall feeding |
| August | Main fall feeding · Winterizer feeding |
| September | Final mow of the year |
| October | Dormant — keep leaves cleared, stay off frozen turf |
| November | Dormant — keep leaves cleared, stay off frozen turf |
| December | Dormant — keep leaves cleared, stay off frozen turf |
Reading the Rio Grande Rsvr lawn year
Rio Grande Rsvr 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 Jul 13 – Jul 28, and the year's main feeding all land before the Sep 11 frost closes the year. With only ~88 frost-free days, the fall window is tight — miss it and the next real chance is spring.
Grasses that fit Rio Grande Rsvr
Frequently asked questions
When should I overseed my lawn in Rio Grande Rsvr?
For cool-season grass (bluegrass, fescue, ryegrass), overseed in early fall — in Rio Grande Rsvr that means roughly Jul 13 – Jul 28, timed 45–60 days before the average first fall frost (Sep 11) so seedlings establish before cold. Spring works as a backup but collides with crabgrass season.
When do I put down crabgrass preventer in Rio Grande Rsvr?
Aim for May 25 – Jun 15 — the estimated stretch when Rio Grande Rsvr soil approaches the ~55°F germination threshold, anchored to the average last frost (Jun 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 Rio Grande Rsvr?
Keep mowing as long as the grass grows — in Rio Grande Rsvr that's typically until Sep 4 – Sep 25, around the average first fall frost (Sep 11). Take the final cut slightly shorter to discourage snow mold.
What grass grows best in Rio Grande Rsvr?
Colorado is cool-season country: Kentucky bluegrass, tall fescue, perennial ryegrass, fine fescue. See the grass guides linked below for identification and care.