Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for Marianna, FL

Marianna, FL is in USDA zone 9a across its 3 ZIP codes. The median last spring frost is March 1 and the first fall frost November 27.

Marianna on the zone map

Outlined: its 2 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone9a20 to 25 °F
ZIP codes3
Last frostMar 1
First frostNov 27
Growing season270 days

9a 3 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Marianna, FL

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 1median — 50% chance of a later frost
Safe for tender plantsMarch 21only 10% chance of frost after
First fall frostNovember 27median — 10% chance by Nov 8
Growing season270 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 9 and returns around December 22.

From the NOAA station Marianna Municipal Airport, FL, elevation 112 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Marianna

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Jan 18 – Feb 1
SpinachSow outdoors · Jan 18 – Feb 8
Broccoli, cabbageStart indoors · Dec 21 – Jan 4
Broccoli, cabbageTransplant · Feb 8 – Feb 22
Onion setsPlant outdoors · Feb 1 – Feb 15
PotatoesPlant outdoors · Feb 8 – Feb 22
LettuceSow outdoors · Feb 1 – Feb 15
Carrots, beetsSow outdoors · Feb 8 – Feb 22
TomatoesStart indoors · Jan 4 – Jan 18
TomatoesTransplant · Mar 8 – Mar 22
Peppers, eggplantStart indoors · Dec 21 – Jan 4
Peppers, eggplantTransplant · Mar 15 – Mar 29
BeansSow outdoors · Mar 8 – Mar 22
Sweet cornSow outdoors · Mar 8 – Mar 22
Cucumbers, squashSow outdoors · Mar 8 – Mar 22
Fall lettuce, spinachSow outdoors · Oct 2 – Oct 16
GarlicPlant cloves · Nov 13 – Dec 18
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 1) and first fall frost (Nov 27) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 32447 came on Jan 27 — about the same time as the 1991–2020 average (Jan 27).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 9a in Florida

473 plants native to the lower 48 states, recorded in Florida, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. Each links to its USDA PLANTS profile.

Trees 66

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °FAtlantic white cedar50 ft · blooms spring · medium shade tolerance · to −36 °F

Shrubs 113

aloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °FAmerican hornbeam30 ft · blooms mid spring · low shade tolerance · to −34 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °F

Wildflowers & perennials 143

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican century plant6 ft · blooms indeterminate · high shade tolerance · to 12 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °F

Grasses 131

American cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fbig cordgrass8 ft · blooms spring · high shade tolerance · to −3 °F

Vines 12

American wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °Fgraybark grape50 ft · blooms late spring · medium shade tolerance · to −8 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Marianna, FL.

Soil in Marianna, FL

The soil mapped at the center of ZIP 32447 is Bonifay — sand, well drained.

TextureSanddrains and warms fast; dries out and needs more feeding
pH5.3strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.81%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classFarmland of local importanceUSDA classification

Map unit: Bonifay sand, 0 to 5 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 32447; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marianna, FL

Summer high92 °Faverage high, July
Winter low41 °Faverage low, January
Hot days100days a year at 90 °F or more
Freezing nights22nights a year at 32 °F or less
Growing degree days6,933base 50 °F — the season’s usable heat
Longest day14 h 08 mindaylight on June 21
Shortest day10 h 09 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation51.1 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 63 °F, low 41 °F 63°41° JanFebruary: average high 67 °F, low 44 °F 67°44° FebMarch: average high 74 °F, low 49 °F 74°49° MarApril: average high 80 °F, low 55 °F 80°55° AprMay: average high 88 °F, low 64 °F 88°64° MayJune: average high 91 °F, low 71 °F 91°71° JunJuly: average high 92 °F, low 73 °F 92°73° JulAugust: average high 91 °F, low 73 °F 91°73° AugSeptember: average high 89 °F, low 69 °F 89°69° SepOctober: average high 81 °F, low 58 °F 81°58° OctNovember: average high 72 °F, low 47 °F 72°47° NovDecember: average high 65 °F, low 43 °F 65°43° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 4.04 in precipitation 4.0 JanFebruary: 4.49 in precipitation 4.5 FebMarch: 5.01 in precipitation 5.0 MarApril: 3.72 in precipitation 3.7 AprMay: 3.15 in precipitation 3.1 MayJune: 5.07 in precipitation 5.1 JunJuly: 5.10 in precipitation 5.1 JulAugust: 4.93 in precipitation 4.9 AugSeptember: 4.06 in precipitation 4.1 SepOctober: 3.06 in precipitation 3.1 OctNovember: 3.67 in precipitation 3.7 NovDecember: 4.81 in precipitation 4.8 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Marianna Municipal Airport, FL (6 mi away); precipitation: Marianna Municipal Airport, FL (6 mi away). Daylight is calculated from latitude.

ZIP codes in Marianna

324469a
20 to 25 °F
324479a
20 to 25 °F
324489a
20 to 25 °F

Florida planting zones →

Questions about Marianna

What planting zone is Marianna, FL?

Marianna, FL is in USDA hardiness zone 9a on the 2023 map (9a: 20 to 25 °F).

When is the last frost in Marianna, FL?

The median last spring frost is March 1 and the median first fall frost is November 27 (NOAA 1991–2020 normals, Marianna Municipal Airport station).

When can I plant a garden in Marianna, FL?

Cool-season crops like peas and spinach go in around Jan 18 – Feb 8; tomatoes, peppers, beans and squash after about Mar 8, once frost risk has passed.

What kind of onions grow in Marianna, FL?

Short-day onions: the longest day is 14 h 08 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Marianna, FL get?

About 51.1 inches of precipitation a year (NOAA 1991–2020 normals).