When to plant in Tanque Verde, AZ
USDA Zone 9aTanque Verde, Arizona frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
A generous ~324-day season lets Tanque Verde gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. Zone 9a is warm enough that Tanque Verde can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
SAGUARO NP · 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 Tanque Verde’s own odds, recorded at SAGUARO NP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 18 | Feb 22 | Jan 22 | Nov 16 | Dec 2 | Dec 18 |
| 32°F | Feb 25 | Jan 26 | Dec 24 | Nov 26 | Dec 16 | Jan 17 |
| 28°F | Feb 9 | Jan 7 | Dec 14 | Dec 9 | Dec 28 | Feb 3 |
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 Tanque Verde, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 19 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.
Tanque Verde planting FAQ
When is the last spring frost in Tanque Verde, AZ?
Plan for the last spring frost in Tanque Verde around January 26 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Tanque Verde, AZ?
The first fall frost in Tanque Verde typically arrives around December 16 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Tanque Verde in?
Tanque Verde is in USDA hardiness zone 9a. In zone 9a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Tanque Verde?
There are roughly 324 frost-free days in Tanque Verde (a long growing season), running from the average last frost around January 26 to the first fall frost near December 16.
When should I plant tomatoes in Tanque Verde?
In Tanque Verde, start tomato seeds indoors around December 1–December 15, then transplant seedlings outdoors around February 2 once the danger of frost has passed.
Never miss a window in Tanque Verde
An email when it’s time to start seeds, transplant, and sow — timed to Tanque Verde’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Catalina Foothills · 14 km
- Tucson · 18 km
- Flowing Wells · 25 km
- Casas Adobes · 26 km
- Oro Valley · 28 km
- Vail · 28 km
- Tucson Mountains · 31 km
- Drexel Heights · 32 km
Frost dates recorded at SAGUARO NP, 10 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 Tanque Verde, AZ — Frost Dates & Zone 9a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00027398. Retrieved from https://blissgarden.com/arizona/tanque-verde.