When to plant in Upper Grand Lagoon, FL
USDA Zone 9bUpper Grand Lagoon, Florida frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
Upper Grand Lagoon enjoys a long ~320-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 Upper Grand Lagoon can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average first fall frost in Upper Grand Lagoon is now 7 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
PANAMA CITY BAY CO 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 Upper Grand Lagoon’s own odds, recorded at PANAMA CITY BAY CO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 18 | Feb 25 | Jan 31 | Nov 11 | Dec 1 | Dec 30 |
| 32°F | Mar 5 | Feb 7 | Jan 5 | Nov 23 | Dec 24 | Jan 23 |
| 28°F | Feb 22 | Jan 23 | Dec 23 | Dec 5 | Jan 5 | 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 Upper Grand Lagoon, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 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.
Upper Grand Lagoon planting FAQ
When is the last spring frost in Upper Grand Lagoon, FL?
On average, the last spring frost in Upper Grand Lagoon is around February 7 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Upper Grand Lagoon, FL?
In Upper Grand Lagoon, the first 32°F freeze of fall lands around December 24 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Upper Grand Lagoon in?
Upper Grand Lagoon is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Upper Grand Lagoon?
There are roughly 320 frost-free days in Upper Grand Lagoon (a long growing season), running from the average last frost around February 7 to the first fall frost near December 24.
When should I plant tomatoes in Upper Grand Lagoon?
In Upper Grand Lagoon, start tomato seeds indoors around December 13–December 27, then transplant seedlings outdoors around February 14 once the danger of frost has passed.
Never miss a window in Upper Grand Lagoon
An email when it’s time to start seeds, transplant, and sow — timed to Upper Grand Lagoon’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Lynn Haven · 13 km
- Panama City Beach · 14 km
- Callaway · 20 km
- Panama City · 22 km
- Destin · 74 km
- Niceville · 80 km
- Fort Walton Beach · 88 km
- Wright · 91 km
Frost dates recorded at PANAMA CITY BAY CO AP, 8 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 Upper Grand Lagoon, FL — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00003882. Retrieved from https://blissgarden.com/florida/upper-grand-lagoon.