US Grow Zones

Jacksonville, Florida: planting zone & frost dates

Jacksonville is in USDA plant hardiness zone 9b, where the average coldest winter night reaches 25 to 30°F (-3.9 to -1.1°C). The typical last spring frost is around Feb 15 and the first fall frost around Dec 24.

Hardiness zone9B25 to 30°F
Last spring frostFeb 1530% chance of frost after
First fall frostDec 2430% chance of frost before
Growing season330 daysmedian frost-free days

Frost dates

ProbabilityLast spring frost (32°F)First fall frost (32°F)
Safer (10% risk)Mar 3Dec 3
Typical planning date (30% risk)Feb 15Dec 24
Median (50%)Feb 1Jan 5

How to read this: after the spring "10% risk" date, a 32°F frost happens in only about 1 year in 10. In fall, the "10% risk" date is the early end — a frost before it happens about 1 year in 10.

Frost data comes from NOAA station JACKSONVILLE NAS, FL (USW00093837), 7.1 mi (11.5 km) from the city center and 16 ft higher than the city center (+5 m). Record used for the 1991–2020 normals: 23 years.

Hardiness zone across Jacksonville

Jacksonville spans more than one half-zone. Share of the city's land area by zone (via its 34 ZIP codes): 9b (68%), 9a (32%). The headline zone is the one covering the most land. Look up your ZIP for your exact zone.

ZIP codes in Jacksonville and their zones
ZIPZoneShare of city land
322189b12.9%
322269b11.5%
322199a9.6%
322349a9.0%
322569b8.2%
322219a6.4%
322209a5.1%
322259b3.5%
322449b3.2%
322109b2.9%
322249b2.6%
322469b2.6%
322589b2.4%
322169b1.7%
322549b1.7%
322579b1.6%
322079b1.5%
322089b1.5%
322229a1.5%
322239b1.5%
322099b1.2%
322119b1.1%
322059b1.0%
322779b1.0%
322339b0.9%
322069b0.8%
322129b0.7%
322179b0.7%
322049b0.4%
322029b0.3%
322279b0.1%
322039b0.0%
322149b0.0%
322289b0.0%

Vegetable planting calendar for Jacksonville

Dates are counted from the 30%-risk frost dates above (last frost Feb 15, first frost Dec 24). Shift a week later in cold spots or low-lying ground.

CropStart indoorsTransplant / plant outDirect sowFall crop sow/plant
TomatoDec 21 – Jan 4Feb 22 – Mar 8——
PepperDec 7 – Dec 21Mar 1 – Mar 15——
Lettuce
Mild winters: fall and winter plantings are usually more reliable than spring.
Jan 4 – Jan 18Feb 1 – Feb 22Jan 18 – Mar 1Oct 15 – Nov 12
Green Beans——Feb 22 – Mar 29Oct 1 – Oct 15
Sweet Corn——Feb 22 – Mar 22—
Zucchini & Summer SquashJan 18 – Jan 25Feb 22 – Mar 8Feb 22 – Mar 15Oct 1 – Oct 15
CucumberJan 18 – Jan 25Mar 1 – Mar 8Feb 22 – Mar 15Oct 1 – Oct 15
Carrot
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 25 – Mar 1Oct 1 – Oct 15
Onion
Mild winters: fall and winter plantings are usually more reliable than spring.
Nov 23 – Dec 7Jan 18 – Feb 1——
Potato
Mild winters: fall and winter plantings are usually more reliable than spring.
—Jan 18 – Feb 8——
BasilJan 4 – Jan 18Mar 1 – Mar 15Mar 1 – Mar 22—
Spinach
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 4 – Feb 1Oct 29 – Nov 26
Kale
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 21 – Jan 4Jan 18 – Feb 8Jan 18 – Feb 8Oct 15 – Nov 12
Broccoli
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 21 – Jan 4Feb 1 – Feb 22—Oct 1 – Oct 15
Peas
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 4 – Jan 25Oct 15 – Oct 29
EggplantDec 7 – Dec 21Mar 1 – Mar 15——
Cabbage
Mild winters: fall and winter plantings are usually more reliable than spring.
Dec 21 – Jan 4Jan 18 – Feb 1—Oct 1 – Oct 15
Radish
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 11 – Mar 1Nov 12 – Dec 10
Strawberry—Jan 18 – Feb 8——
Beets
Mild winters: fall and winter plantings are usually more reliable than spring.
——Jan 25 – Mar 8Oct 15 – Oct 29

Nearby cities in Florida

More: all Florida cities · other zone 9b cities: Houston, TX, Phoenix, AZ, San Jose, CA, Fresno, CA, Sacramento, CA, Mesa, AZ, Bakersfield, CA, New Orleans, LA