When to plant in Cinco Ranch, TX
USDA Zone 9bEverything below — frost dates, hardiness zone, and what to plant when in Cinco Ranch, Texas — is derived from the closest NOAA station with complete climate normals.
Cinco Ranch enjoys a long ~312-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. These dates come from a station roughly 17 km away, the closest with full normals; terrain around Cinco Ranch (elevation, water, pavement) can move your real frost dates a few days either way. Zone 9b is warm enough that Cinco Ranch can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
HOUSTON SUGARLAND MEM · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Cinco Ranch’s own odds, recorded at HOUSTON SUGARLAND MEM.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 21 | Feb 26 | Jan 25 | Nov 7 | Nov 27 | Dec 24 |
| 32°F | Mar 7 | Feb 2 | Dec 28 | Nov 20 | Dec 11 | Jan 16 |
| 28°F | Feb 23 | Jan 18 | Dec 17 | Dec 4 | Jan 1 | Feb 2 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Cinco Ranch, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 31 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Cinco Ranch planting FAQ
When is the last spring frost in Cinco Ranch, TX?
Cinco Ranch's average last spring frost falls near February 2 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Cinco Ranch, TX?
In Cinco Ranch, the first 32°F freeze of fall lands around December 11 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Cinco Ranch in?
Cinco Ranch is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Cinco Ranch?
There are roughly 312 frost-free days in Cinco Ranch (a long growing season), running from the average last frost around February 2 to the first fall frost near December 11.
When should I plant tomatoes in Cinco Ranch?
In Cinco Ranch, start tomato seeds indoors around December 8–December 22, then transplant seedlings outdoors around February 9 once the danger of frost has passed.
Never miss a window in Cinco Ranch
An email when it’s time to start seeds, transplant, and sow — timed to Cinco Ranch’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Katy · 10 km
- Mission Bend · 10 km
- Four Corners · 12 km
- Pecan Grove · 13 km
- Fulshear · 13 km
- Richmond · 18 km
- Sugar Land · 20 km
- Rosenberg · 22 km
Frost dates recorded at HOUSTON SUGARLAND MEM, 17 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Cinco Ranch, TX — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012977. Retrieved from https://blissgarden.com/texas/cinco-ranch.