Jacinto, Mississippi, sits in USDA hardiness zone 7b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Crops well matched to these conditions include cabbage, prickly pear, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Jacinto, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single Jacinto lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around Jacinto — soil, climate, flood, and parcel records. How we handle your address.
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Jacinto — the short answer
Jacinto, Mississippi: USDA zone 7b, about 240 days between hard freezes, across 559 acres of town.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~240
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 559 acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 7b is Jacinto's average, not your lot's — a low corner or a tree line moves it. Against Jacinto's 240-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Jacinto
Each reading below is measured for Jacinto itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredJacinto runs about 240 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredJacinto sits in USDA hardiness zone 7b.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country Jacinto is in
Jacinto sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Jacinto's own centroid rather than borrowed from Alcorn County.
What Grows in Jacinto
Every plant below cleared Jacinto's own zone 7b and its 240-day season. Each card opens that plant's Mississippi profile. How we score.
Is it too late to plant in Jacinto?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 12 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Jacinto
Closest first, within ~10 miles of Jacinto. Listing isn't leaking, and distance isn't exposure.
- Cooksey's GroceryUnderground Storage Tanks · 2000 ft
- 003L0056 ALCORNNitrate · 2.3 mi
- 117D0018 PRENTISSNitrate · 4.1 mi
- 003L0007 ALCORNNitrate · 4.4 mi
- Prentiss County District 2 ShopUnderground Storage Tanks · 5.0 mi
- 141D0041 TISHOMINGONitrate · 5.4 mi
- 141D0042 TISHOMINGONitrate · 5.4 mi
- 141D0040 TISHOMINGONitrate · 5.4 mi
- Vern Crowe's AmocoUnderground Storage Tanks · 5.7 mi
- Bodeaux's One StopUnderground Storage Tanks · 5.7 mi
- Bishop's GroceryUnderground Storage Tanks · 5.7 mi
- Westvaco Corporation, Fine Papers DivUnderground Storage Tanks · 5.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Jacinto's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near Jacinto.
Total Sites
220
within ~10 miles of Jacinto
Risk Level
Elevated
Highest-severity
20 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Jacinto
Severity Distribution
within ~10 miles of Jacinto
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Jacinto, two things run higher than the national average within ~10 miles of Jacinto — PFAS (4 sites) and Nitrate (118 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Jacinto
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the Jacinto average
Your land is one point inside Jacinto
Everything above resolves to Jacinto as a whole — one PHZM band and one 28°F frost record, read across 559 acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at town scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the Jacinto Average
Jacinto Average
- ●USDA Zones 7b, averaged across Jacinto
- ●One soil character for all of Jacinto
- ●Frost dates read at Jacinto's scale: Mar 17 to Nov 12
YOUR Parcel
- ✓Your exact zone, not Jacinto's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Jacinto
Pull a site-specific report for your exact address in Jacinto, Mississippi — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Jacinto averages can't show:
We read public map data around Jacinto — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Jacinto average
How we know this about Jacinto
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Jacinto’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at town grain anywhere on this page — there is no town-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about Jacinto
When does frost risk typically end in Jacinto?
The last hard freeze (28°F) in Jacinto typically lands around Mar 17, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Apr 7.
When is the first frost in Jacinto?
The first hard freeze (28°F) in Jacinto typically arrives around Nov 12, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 29, so the watching starts about Oct 13 — about 240 days after the spring freeze cleared.
How long is the growing season in Jacinto?
Measured between 28°F hard freezes, Jacinto sees about 240 frost-free days — roughly Mar 17 through Nov 12, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 7 to Oct 29, about 205 days.
Is the soil safe to grow vegetables in Jacinto?
The federal record around Jacinto is a meaningful one — 220 documented sites, mostly Nitrate entries (118), the nearest Underground Storage Tanks record about 0.4 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Jacinto?
From about Oct 13 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 12 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 12. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Jacinto's scale — its 7b band and its 240-day season. Your yard writes its own version of Jacinto's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at Jacinto’s own scale
6 of the readings below were taken at Jacinto's own scale — its own ~240-day season between 28°F freezes, the 559 acres it covers and 220 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Jacinto's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Jacinto's own 28°F hard-freeze dates, about Mar 17 and Nov 12 and the ~240-day span between themNOAA 1991–2020 Climate Normals
- 220 documented contamination sites on the federal record near Jacinto, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Jacinto's boundary and the 559 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~240-day seasonGrowable Ground crop-matching engine
- The ecoregion at Jacinto's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Jacinto's 559 acres read through its county's SSURGO summaryfrom Alcorn County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Alcorn County
- The growing challenges every Mississippi grower plans around — written at state scale, so they stay on the state guidefrom Mississippi
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Alcorn County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Jacinto's 559 acreswhy one lot differs from the next →
- Which side of Jacinto you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 559 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any Jacinto-wide figureread your own land →