Frost dates & planting calendar for Jacksonville, FL
Frost dates
Feb 1
Last spring frost, typical
In half of the years that freeze, the last frost comes later.
Safer date: Mar 3. Only 1 freeze year in 10 has a frost after this.
Jan 5
First fall frost, typical
In half of the years that freeze, it comes earlier.
Early date: Dec 3. Only 1 freeze year in 10 freezes before this.
330
Days, typical frost-free season
From NOAA’s 1991–2020 climate normals for this station.
9b
USDA hardiness zone
Coldest night of the winter, averaged over 1991–2020: 25 to 30°F (−3.9 to −1.1°C).
Zone for ZIP 32203, the ZIP nearest the city center; zones can vary within a city. What zone 9b means.
A 32°F freeze happens in about 80% of years here. These dates describe the years that do freeze; in the other years there is no frost at all.
What to plant right now
As of Nov 9, 2026
Typical frost-free season: 330 days. Station: Jacksonville Nas, FL, 12 km away. Source: NOAA NCEI U.S. Climate Normals 1991–2020 (32°F threshold).
Hardiness zones: 2023 USDA Plant Hardiness Zone Map, PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed 9 Nov 2026.
Can I plant tomatoes now?
Not yet. Start tomato seeds indoors from Jan 6 to Jan 20, then plant them out from Mar 3 to Mar 17.
Planting calendar
Windows are counted from the safer dates (Mar 3 in spring, Dec 3 in fall). Going by the typical dates instead gains you about 4 weeks in spring, with more risk.
January
The next window opens in January.
Tomatotender
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Transplant outdoors
- Mar 3 – Mar 17
Eggplanttender
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Transplant outdoors
- Mar 3 – Mar 17
Broccolihardy
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Transplant outdoors
- Feb 3 – Mar 3
- Sow outdoors
- Feb 3 – Feb 17
- Sow for fall
- Sep 10 – Sep 24
Cabbagehardy
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Transplant outdoors
- Feb 3 – Mar 3
- Sow outdoors
- Feb 3 – Feb 17
- Sow for fall
- Sep 10 – Sep 24
Cauliflowerhalf hardy
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Transplant outdoors
- Feb 17 – Mar 3
- Sow outdoors
- Feb 10 – Mar 3
- Sow for fall
- Sep 10 – Sep 24
Brussels sproutshardy
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Sow outdoors
- Feb 10 – Feb 10
- Sow for fall
- Sep 10 – Sep 24
Marigoldtender
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 6
- Transplant outdoors
- Mar 3 – Mar 3
Calendulahalf hardy
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Sow outdoors
- Feb 24 – Mar 3
Mexican sunflowertender
Next: start indoors from Jan 6
- Start indoors
- Jan 6 – Jan 20
- Sow outdoors
- Mar 3 – Mar 3
Leaf lettucehardy
Next: sow outdoors from Jan 20
- Transplant outdoors
- Feb 3 – Feb 17
- Sow outdoors
- Jan 20 – Feb 17
Head lettucehardy
Next: sow outdoors from Jan 20
- Transplant outdoors
- Feb 3 – Feb 17
- Sow outdoors
- Jan 20 – Feb 17
Zinniatender
Next: start indoors from Jan 20
- Start indoors
- Jan 20 – Feb 3
- Sow outdoors
- Mar 3 – Mar 3
Nasturtiumtender
Next: start indoors from Jan 20
- Start indoors
- Jan 20 – Feb 3
- Sow outdoors
- Mar 3 – Mar 3
Sunflowertender
Next: start indoors from Jan 20
- Start indoors
- Jan 20 – Feb 3
February
The next window opens in February.
Cucumbertender
Next: start indoors from Feb 3
- Start indoors
- Feb 3 – Feb 17
- Sow outdoors
- Mar 3 – Mar 10
Summer squashtender
Next: start indoors from Feb 3
- Start indoors
- Feb 3 – Feb 17
- Sow outdoors
- Mar 3 – Mar 10
Winter squashtender
Next: start indoors from Feb 3
- Start indoors
- Feb 3 – Feb 17
- Sow outdoors
- Mar 10 – Mar 17
Watermelontender
Next: start indoors from Feb 3
- Start indoors
- Feb 3 – Feb 17
- Transplant outdoors
- Mar 10 – Mar 17
- Sow outdoors
- Mar 10 – Mar 17
Cantaloupetender
Next: start indoors from Feb 3
- Start indoors
- Feb 3 – Feb 10
- Sow outdoors
- Mar 10 – Mar 17
Peahardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Spinachhardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Kohlrabihardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
- Sow for fall
- Sep 10 – Sep 24
Radishhardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Beethalf hardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Mar 3
Turniphardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Bulb onionhardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Green onionhardy
Next: sow outdoors from Feb 3
- Sow outdoors
- Feb 3 – Feb 17
Kalehardy
Next: sow outdoors from Feb 10
- Sow outdoors
- Feb 10 – Feb 10
- Sow for fall
- Sep 10 – Sep 24
Collardshardy
Next: sow outdoors from Feb 10
- Sow outdoors
- Feb 10 – Feb 10
- Sow for fall
- Sep 10 – Sep 24
Swiss chardhalf hardy
Next: sow outdoors from Feb 17
- Sow outdoors
- Feb 17 – Mar 3
Carrothalf hardy
Next: sow outdoors from Feb 17
- Sow outdoors
- Feb 17 – Mar 3
Potatohalf hardy
Next: sow outdoors from Feb 17
- Sow outdoors
- Feb 17 – Mar 3
Parsniphalf hardy
Next: sow outdoors from Feb 17
- Sow outdoors
- Feb 17 – Mar 3
Dillhalf hardy
Next: sow outdoors from Feb 17
- Sow outdoors
- Feb 17 – Feb 24
March
The next window opens in March.
Bush beantender
Next: sow outdoors from Mar 3
- Sow outdoors
- Mar 3 – Mar 3
Pole beantender
Next: sow outdoors from Mar 3
- Sow outdoors
- Mar 3 – Mar 3
Sweet corntender
Next: sow outdoors from Mar 3
- Sow outdoors
- Mar 3 – Mar 3
Basiltender
Next: sow outdoors from Mar 3
- Sow outdoors
- Mar 3 – Mar 3
Marjoramtender
Next: transplant outdoors from Mar 3
- Transplant outdoors
- Mar 3 – Mar 3
Pumpkintender
Next: sow outdoors from Mar 10
- Sow outdoors
- Mar 10 – Mar 17
Lima beantender
Next: sow outdoors from Mar 17
- Sow outdoors
- Mar 17 – Mar 17
October
The next window opens in October.
Sweet alyssumhardy
Next: sow for fall from Oct 22
- Sow for fall
- Oct 22 – Oct 22
No window listed
No frost-based window for these crops.
Mustard greenshalf hardy
No frost-based window listed.
No frost-based sowing window is listed for mustard greens.
Crop guidance from university extension services; see each crop page for sources.
Questions
- When is the last frost in Jacksonville?
- The typical last spring frost (32°F) in Jacksonville is Feb 1. In 1 out of 10 years that freeze, a frost still comes after Mar 3. A freeze happens in about 80% of years.
- When is the first frost in Jacksonville?
- The typical first fall frost is Jan 5. In 1 out of 10 years that freeze, it arrives before Dec 3.
- When should I start tomato seeds in Jacksonville?
- Start tomato seeds indoors between Jan 6 and Jan 20, counting back from the safer last-frost date.
- What planting zone is Jacksonville in?
- Jacksonville is in USDA hardiness zone 9b on the 2023 map, going by ZIP 32203, the ZIP nearest the city center. Zones can vary within a city. The zone describes how cold winter nights get, not when to plant; for that, use the frost dates on this page.
Nearby cities
- Miami, FL 527 km
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