Orleans, CA Lawn Care Calendar

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

Turf region
Transition zone
Tall fescue and Kentucky bluegrass alongside Bermuda and Zoysia
Last spring frost
Mar 12
median, 1991–2020
First fall frost
Nov 26
median, 1991–2020
Growing stretch
259 days
frost to frost

Cool-season lawns

TaskOrleans windowWhy then
Crabgrass pre-emergent Feb 19 – Mar 12 Soil nearing 55°F — must beat germination
Light spring feeding Mar 12 – Apr 9 After green-up, before summer stress
Aerate + overseed Sep 27 – Oct 12 Fall growth surge; established before cold
Main fall feeding Oct 1 – Oct 29 The year’s most important nitrogen
Winterizer feeding Oct 29 – Nov 12 Root reserves for spring green-up
Final mow Nov 19 – Dec 10 Growth stops around first frost

Warm-season lawns

TaskOrleans windowWhy then
Crabgrass pre-emergent Feb 19 – Mar 12 Southern soil warms early — don’t be late
Seed / sod / establish Mar 26 – Apr 9 Soil 65–70°F; a full season to mature
First feeding Apr 2 – Apr 23 At full green-up, not before
Aerate / dethatch Apr 9 – May 7 Peak growth heals the disturbance fast
Last nitrogen Oct 1 – Oct 15 6–8 weeks before frost — then stop
Growth stops / final mow Nov 12 – Dec 3 Dormancy arrives with first frost

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

Orleans lawn care, month by month

California sits in the turf transition zone, so the calendar depends on which grass family you have — they run on opposite schedules. Cool-season lawns (tall fescue, bluegrass) peak in spring and fall; warm-season lawns (Bermuda, Zoysia) do everything in the warm half. Not sure which you have? Start with the grass identification guides.

MonthCool-season lawnsWarm-season lawns
January Dormant — keep leaves cleared, stay off frozen turfDormant (brown is normal) — no nitrogen, light cleanup only
February Apply crabgrass pre-emergentApply crabgrass pre-emergent
March Apply crabgrass pre-emergent · Light feeding after green-upApply crabgrass pre-emergent · Seed, sod, or plug new grass
April Light feeding after green-upSeed, sod, or plug new grass · First feeding at full green-up · Aerate / dethatch
May Mow high (3–3.5″); water deeply in dry spells; no feeding in heatAerate / dethatch
June Mow high (3–3.5″); water deeply in dry spells; no feeding in heatPeak growth — regular mowing, about 1″ of water a week
July Mow high (3–3.5″); water deeply in dry spells; no feeding in heatPeak growth — regular mowing, about 1″ of water a week
August Mow high (3–3.5″); water deeply in dry spells; no feeding in heatPeak growth — regular mowing, about 1″ of water a week
September Aerate + overseedPeak growth — regular mowing, about 1″ of water a week
October Aerate + overseed · Main fall feeding · Winterizer feedingLast nitrogen of the year
November Winterizer feeding · Final mow of the yearGrowth stops — final mow
December Final mow of the yearGrowth stops — final mow

Reading the Orleans lawn year

Transition-zone timing cuts both ways in Orleans: cool-season lawns get their big renovation in early fall (overseed Sep 27 – Oct 12), while warm-season lawns establish in late spring (Mar 26 – Apr 9) and want their last feeding by Oct 1 – Oct 15. The one shared date is the pre-emergent window in spring — both families need crabgrass stopped before soil crosses 55°F.

Grasses that fit Orleans

Frequently asked questions

When should I overseed my lawn in Orleans?

For cool-season grass (bluegrass, fescue, ryegrass), overseed in early fall — in Orleans that means roughly Sep 27 – Oct 12, timed 45–60 days before the average first fall frost (Nov 26) so seedlings establish before cold. Spring works as a backup but collides with crabgrass season.

When should I plant warm-season grass in Orleans?

Seed, sod, or plug Bermuda, Zoysia, and other warm-season grasses in late spring — around Mar 26 – Apr 9 in Orleans, once soil has warmed well past the last frost. That gives new grass a full growing season to mature before its first winter dormancy.

When do I put down crabgrass preventer in Orleans?

Aim for Feb 19 – Mar 12 — the estimated stretch when Orleans soil approaches the ~55°F germination threshold, anchored to the average last frost (Mar 12). 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 Orleans?

Keep mowing as long as the grass grows — in Orleans that's typically until Nov 19 – Dec 10, around the average first fall frost (Nov 26). Take the final cut slightly shorter to discourage snow mold.

What grass grows best in Orleans?

California is in the turf transition zone, so both families are common: Tall fescue and Kentucky bluegrass alongside Bermuda and Zoysia. Tall fescue is the usual cool-season pick and Bermuda or Zoysia the warm-season ones — they run on opposite calendars, so identify what you have first. See the grass guides linked below for identification and care.