When to plant in The Woodlands, TX
USDA Zone 9aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for The Woodlands, Texas — all computed from The Woodlands's nearest NOAA weather station.
A generous ~287-day season lets The Woodlands gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. In zone 9a, frost is a minor factor for The Woodlands — most perennials thrive, and annual vegetables can go out early and stay late.
The average last spring frost in The Woodlands is now 8 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
HOUSTON HOOKS MEM 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 The Woodlands’s own odds, recorded at HOUSTON HOOKS MEM AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 29 | Mar 7 | Feb 11 | Nov 2 | Nov 19 | Dec 8 |
| 32°F | Mar 15 | Feb 19 | Jan 21 | Nov 13 | Dec 3 | Jan 5 |
| 28°F | Mar 5 | Jan 31 | Dec 28 | Dec 2 | Dec 29 | Feb 1 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in The Woodlands, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 22 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.
The Woodlands planting FAQ
When is the last spring frost in The Woodlands, TX?
The Woodlands's average last spring frost falls near February 19 — 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 The Woodlands, TX?
The first fall frost in The Woodlands typically arrives around December 3 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is The Woodlands in?
The Woodlands is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in The Woodlands?
The Woodlands has about 287 frost-free days — a long growing season — between the average last spring frost (February 19) and first fall frost (December 3).
When should I plant tomatoes in The Woodlands?
For The Woodlands, sow tomatoes indoors about December 25–January 8 and move the seedlings out around February 26, after the last spring frost.
Never miss a window in The Woodlands
An email when it’s time to start seeds, transplant, and sow — timed to The Woodlands’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Tomball · 14 km
- Spring · 17 km
- Conroe · 18 km
- Humble · 31 km
- Aldine · 32 km
- Atascocita · 37 km
- Houston · 45 km
- West University Place · 51 km
Frost dates recorded at HOUSTON HOOKS MEM AP, 13 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 The Woodlands, TX — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053910. Retrieved from https://blissgarden.com/texas/the-woodlands.