When to plant in Lake Jackson, TX
USDA Zone 9bHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Lake Jackson, Texas — all computed from Lake Jackson's nearest NOAA weather station.
Lake Jackson enjoys a long ~298-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. Zone 9b is warm enough that Lake Jackson can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average last spring frost in Lake Jackson is now 7 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
ANGLETON BRAZORIA AP · 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 Lake Jackson’s own odds, recorded at ANGLETON BRAZORIA AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 31 | Mar 2 | Jan 31 | Nov 5 | Nov 25 | Dec 16 |
| 32°F | Mar 17 | Feb 13 | Jan 10 | Nov 18 | Dec 8 | Jan 12 |
| 28°F | Mar 3 | Jan 26 | Dec 23 | Dec 3 | Jan 1 | Feb 5 |
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 Lake Jackson, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 12 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.
Lake Jackson planting FAQ
When is the last spring frost in Lake Jackson, TX?
Lake Jackson's average last spring frost falls near February 13 — 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 Lake Jackson, TX?
In Lake Jackson, the first 32°F freeze of fall lands around December 8 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Lake Jackson in?
Lake Jackson is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Lake Jackson?
There are roughly 298 frost-free days in Lake Jackson (a long growing season), running from the average last frost around February 13 to the first fall frost near December 8.
When should I plant tomatoes in Lake Jackson?
In Lake Jackson, start tomato seeds indoors around December 19–January 2, then transplant seedlings outdoors around February 20 once the danger of frost has passed.
Never miss a window in Lake Jackson
An email when it’s time to start seeds, transplant, and sow — timed to Lake Jackson’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reachFrost dates recorded at ANGLETON BRAZORIA AP, 7 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 Lake Jackson, TX — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00012976. Retrieved from https://blissgarden.com/texas/lake-jackson.