DeLisle, Mississippi, sits in USDA hardiness zone 9a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include artichoke, fig, california poppy, and cabbage — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in DeLisle, 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 DeLisle 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 DeLisle — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
DeLisle — the short answer
DeLisle, Mississippi: USDA zone 9a, about 309 days between hard freezes, across 3K acres of town.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 4
- Harrison County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 10
- Harrison County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~309
- Harrison County normal — NOAA 1991–2020, nearest to this town
- Town area
- 3K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Harrison County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is DeLisle's average, not your lot's — a low corner or a tree line moves it. Against DeLisle's 309-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in DeLisle
Each reading below is measured for DeLisle itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsDeLisle runs about 309 days between hard freezes (read from Harrison County, the closest normal to DeLisle) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredDeLisle sits in USDA hardiness zone 9a.
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 DeLisle is in
DeLisle sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at DeLisle's own centroid, and it is not what its county reads: Harrison County is mostly Southeastern Plains. The wider page above you is answering a different question about different ground.
What Grows in DeLisle
Every plant below cleared DeLisle's own zone 9a and its 309-day season. Each card opens that plant's Mississippi profile. How we score.
Is it too late to plant in DeLisle?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Jan 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 10 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near DeLisle
Closest first, within ~10 miles of DeLisle. Listing isn't leaking, and distance isn't exposure.
- Mr K'sUnderground Storage Tanks · 850 ft
- J C AUTOMOTIVEBrownfields · 1.0 mi
- Smith's Country StoreUnderground Storage Tanks · 1.1 mi
- 047J0001 HARRISONNitrate · 1.2 mi
- Gi Gi's Country Store & DeliUnderground Storage Tanks · 1.2 mi
- 047N0001 HARRISONNitrate · 1.2 mi
- The Country StoreUnderground Storage Tanks · 1.7 mi
- CHEMOURS DELISLE PLANTToxics Release Inventory · 2.0 mi
- CHEMOURS DELISLE PLANTBrownfields · 2.0 mi
- MISSISSIPPI FUEL CENTERBrownfields · 2.1 mi
- Interstate Station #12Underground Storage Tanks · 2.2 mi
- BURNS OIL COMPANY INC, MISSISSIPPI FUEL CENTERBrownfields · 2.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from DeLisle'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 DeLisle.
Total Sites
386
within ~10 miles of DeLisle
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of DeLisle
Severity Distribution
within ~10 miles of DeLisle
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around DeLisle, PFAS runs higher than the national average — 5 sites within ~10 miles of DeLisle. That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in DeLisle
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 DeLisle average
Your land is one point inside DeLisle
Everything above resolves to DeLisle as a whole — one PHZM band, read across 3K acres, with hard-freeze dates borrowed from Harrison County’s record because no 30-year normal resolves at this town’s own centroid. 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 DeLisle Average
DeLisle Average
- ●USDA Zones 9a, averaged across DeLisle
- ●One soil character for all of DeLisle
- ●Frost dates read at DeLisle's scale: Feb 4 to Dec 10
YOUR Parcel
- ✓Your exact zone, not DeLisle's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in DeLisle
Pull a site-specific report for your exact address in DeLisle, Mississippi — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that DeLisle averages can't show:
We read public map data around DeLisle — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the DeLisle average
How we know this about DeLisle
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 Harrison County’s record, because none resolves here; 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 DeLisle
When does frost risk typically end in DeLisle?
The last hard freeze (28°F) in DeLisle typically lands around Feb 4, 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 Feb 25.
When is the first frost in DeLisle?
The first hard freeze (28°F) in DeLisle typically arrives around Dec 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 26, so the watching starts about Nov 10 — about 309 days after the spring freeze cleared.
How long is the growing season in DeLisle?
Measured between 28°F hard freezes, DeLisle sees about 309 frost-free days — roughly Feb 4 through Dec 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 25 to Nov 26, about 274 days.
Is the soil safe to grow vegetables in DeLisle?
The federal record around DeLisle is a meaningful one — 386 documented sites, mostly Underground Storage Tanks entries (168), the nearest Underground Storage Tanks record about 0.2 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 DeLisle?
From about Nov 10 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 Dec 10 (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 Dec 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at DeLisle's scale — its 9a band and its 309-day season. Your yard writes its own version of DeLisle'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 DeLisle’s own scale
5 of the readings below were taken at DeLisle's own scale — the 3,348 acres it covers and 386 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- DeLisle's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 386 documented contamination sites on the federal record near DeLisle, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- DeLisle's boundary and the 3,348 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~309-day seasonGrowable Ground crop-matching engine
- DeLisle sits in the Southern Coastal Plain — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — DeLisle has no normal of its own, so its county's is the closest measured readfrom Harrison County
- Soil character — no town-scale survey exists, so DeLisle's 3,348 acres read through its county's SSURGO summaryfrom Harrison County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Harrison 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 Harrison County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among DeLisle's 3,348 acreswhy one lot differs from the next →
- Which side of DeLisle you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,348 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 DeLisle-wide figureread your own land →