When to plant in Princeton, FL
USDA Zone 11aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Princeton, Florida — all computed from Princeton's nearest NOAA weather station.
With only about -5 frost-free days, Princeton has a short season — start heat-lovers indoors early, favor quick-maturing varieties, and use row cover to stretch both ends. Zone 11a is warm enough that Princeton can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average last spring frost in Princeton is now 9 days later than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
PERRINE 4W · 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 Princeton’s own odds, recorded at PERRINE 4W.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 23 | Jan 25 | Dec 30 | Dec 20 | Jan 15 | Feb 13 |
| 32°F | Feb 1 | Jan 18 | Dec 31 | Dec 31 | Jan 13 | Feb 1 |
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 Princeton, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
2 within 26 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.
Princeton planting FAQ
When is the last spring frost in Princeton, FL?
On average, the last spring frost in Princeton is around January 18 (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 Princeton, FL?
Expect Princeton's first fall frost near January 13 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Princeton in?
Princeton is in USDA hardiness zone 11a. In zone 11a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Princeton?
There are roughly -5 frost-free days in Princeton (a short growing season), running from the average last frost around January 18 to the first fall frost near January 13.
When should I plant tomatoes in Princeton?
In Princeton, start tomato seeds indoors around November 23–December 7, then transplant seedlings outdoors around January 25 once the danger of frost has passed.
Never miss a window in Princeton
An email when it’s time to start seeds, transplant, and sow — timed to Princeton’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Goulds · 3 km
- Naranja · 4 km
- South Miami Heights · 5 km
- Leisure City · 6 km
- Cutler Bay · 8 km
- West Perrine · 8 km
- Richmond West · 8 km
- Homestead · 10 km
Frost dates recorded at PERRINE 4W, 6 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 Princeton, FL — Frost Dates & Zone 11a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00087020. Retrieved from https://blissgarden.com/florida/princeton.