Can I Grow Basil in Mississippi?

USDA Zones 7b-9b · Plant zone range 10-11

Unlikely — Zone Mismatch

basil (zones 10-11) does not overlap with Mississippi's zone range (7b-9b). Growing outdoors is unlikely without significant protection.

One zone short — what would close it

Basil is hardy to zone 10, and the warmest ground in Mississippi is zone 9 — 1 zone short. Planted in open ground it will not survive a Mississippi winter. To grow it here, grow basil in a container and move it under cover for the coldest weeks, or give it a greenhouse.

Season extension and overwintering under cover both work at this margin. How to buy the weeks →

Zone math from 10-11 (plant) against 7-9 (Mississippi). Lift modeled by crop_engine Sprint 20B effective_zone_modifier (+2 zones) via api/fast_sections.py Unlock Engine v2.

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Your yard isn't the whole zone.

Mississippi spans zones 7b-9b, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score basil against your parcel's actual hardiness, soil, and sun.

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Zone Comparison

Basil Needs

  • USDA Zones: 10-11
  • Frost-Free Days: 80+
  • Sun: Full Sun
  • Mature size: 2 ft tall
  • Picking window: ~60 days of harvest
  • Drought tolerance: Low

Mississippi Has

  • USDA Zones: 7b-9b
  • Last Hard Freeze (28°F): Feb 17 - Mar 3
  • First Hard Freeze (28°F): Nov 21 - Nov 30
  • Annual Rainfall: 50-65 inches
  • Common Soils: Loess, Alluvial clay, Sandy loam

Plant Zone Range (zones 10-11)

10a
11b
3a (Cold)13b (Hot)

Preferred Soil pH

3.5 (Acidic)7.0 (Neutral)9.0 (Alkaline)
Highlighted range: pH 4.38.2

Plant data: USDA PLANTS Database / Growable Ground plant catalog. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.

When to Plant Basil in Mississippi

The frost window

Across Mississippi, the last spring hard freeze (28°F) clears between Feb 17 and Mar 3, and the first fall hard freeze lands between Nov 21 and Nov 30 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 263-day window you can count on — up to 286 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.

When to start the seed

Those dates are when basil goes out, not when it starts. It is sown under cover about 5 weeks ahead, so counting back from Mississippi's late-side last freeze of Mar 3 is what fixes your sowing date — and a yard that clears frost earlier than the state's late date starts earlier still.

Winter standing

Mississippi runs as cold as USDA zone 7, and no sourced winter-hardiness floor is on record for basil, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether basil is a permanent planting or a replant-every-spring crop for you turns on your own zone within Mississippi; check its hardiness range against that before treating it as long-lived ground.

Timing tuned to sub-state frost dates — Tishomingo County, not the statewide average.

Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.

Growing Season Fit

The zone check says basil does not survive a Mississippi winter in the ground. The season figures below measure a different question — whether it could finish a season here at all — and they only bear on Mississippi under protection.

Frost-free days

Basil wants 80+ frost-free days; a typical Mississippi site sees ~273 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves comfortable headroom for succession planting.

Growing degree days

Basil needs ~1100 GDD (base 50°F) to ripen. The state median runs ~5404 GDD (from PRISM 1991-2020 climate normals), so Mississippi's typical season clears that easily.

GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.

Soil + Drainage Fit

Basil tolerates a wide pH range (pH 4.3-8.2) — 3.9 units, acid ground through alkaline — so soil acidity is rarely what limits it in Mississippi. A soil test is still worth having, but for what else it tells you about this site, not to clear this plant. It will grow across that whole span, but it does best between pH 6 and 7 — worth knowing before you decide whether a Mississippi soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your Mississippi site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.

Your land, not the state average

SSURGO maps about 30.3% of Mississippi as poorly or somewhat-poorly drained, and the class flips parcel to parcel. Basil has low drought tolerance, so it is the fast-draining end that will cost you — your soil map unit, not the state average, is the real answer.

Check your parcel → Source: USDA NRCS SSURGO.

Plant pH and drainage requirements from USDA PLANTS Database. Mississippi soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.

Basil in Mississippi — Quick Answer

  • Verdict: Unlikely — Zone Mismatch
  • Plant Zones: 10-11 (USDA PLANTS Database)
  • State Zones: 7b-9b (USDA ARS PHZM 2023)
  • Growing Season: 28°F hard freezes about Feb 17 - Mar 3 to Nov 21 - Nov 30 (NOAA Regional Climate Centers ACIS, 1991-2020)
  • Days to Maturity: 65 days

What Else to Consider for Basil in Mississippi

Zone compatibility tells you about winter cold survival — but Mississippi growers also need to think about:

Extreme summer heat and humidity

Heavy alluvial clay in the Delta region

Frequent severe storms and flooding

Growing basil here specifically

Basil rates to USDA zones 10–11 and is hardy to about 44°F, but cold isn't the risk in Mississippi — wet is: with roughly 30.3% of its soils poorly-drained (SSURGO), soggy ground rots the crown.

Give basil a raised bed or mounded row with coarse amendment so its crown never sit wet. How to handle it →

What to actually do about these — and the constraints that apply to every Mississippi grower, not just basil — is covered on the Mississippi growing guide.

Timing shifts within Mississippi

Mississippi isn't one climate. In Tishomingo County, the last hard freeze (28°F) holds until about Mar 23 — roughly 26 days later than the recorded state median — so plant basil to your county's window, not the statewide date.

Basil needs about 80 days of frost-free season to complete its cycle. Even Tishomingo County — Mississippi’s shortest season at 232 frost-free days — clears that by 152 days, so season length isn’t the constraint anywhere in Mississippi. What varies is your own parcel.

Across Mississippi’s 82 counties the frost-free season runs from 232 days in Tishomingo County to 309 days in Harrison County — a spread of 77 days, which is why a single statewide planting date misleads. The median Mississippi county sees 273 frost-free days, leaving basil about 193 days of slack on a typical parcel — room for a second sowing where the season runs long.

County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). Basil's 80-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.

Pollinator + Wildlife Value

Basil draws honeybees and native bees (moderate value, Growable Ground Plant Database). Planting it near vegetable beds can lift fruit set on neighboring crops. Outdoors, basil can only work that bloom inside Mississippi's frost window — roughly 273 days, opening after the last 28°F freeze (Feb 17 - Mar 3) and closing at the first (Nov 21 - Nov 30), per NOAA Regional Climate Centers ACIS, 1991-2020.

Recommended Basil Varieties for Mississippi

Mississippi publishes no state variety trial for basil, so we won't invent a "best for Mississippi" list. Choose types rated to your USDA hardiness zone (7b-9b), and confirm winter survival and drainage against your own parcel.

Mississippi Cooperative Extension

For Mississippi-specific cultivar recommendations, planting calendars, and pest pressure for basil, the canonical source is Mississippi State University Extension Service. Their fact sheets carry the local trial data we can't generalize across 50 states.

Is Basil native to Mississippi?

No — the USDA PLANTS Database lists Basil as introduced rather than native in the Lower 48, so it is not part of Mississippi's native flora. It grows here as a garden plant; pairing it with a few Mississippi natives keeps local pollinators fed too.

Looking for plants that belong here? The Mississippi growing guide lists USDA-documented natives for the state.

Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.

What pests threaten basil in Mississippi?

Japanese beetle is documented in Mississippi and will find basil, but it is manageable here. What an experienced grower watches for, and does:

Japanese beetle

Japanese beetle

Worth watchingdocumented in part of this state

This is on the University of Minnesota's list of Japanese beetle preferred plants — but their read is that fruits, vegetables and herbs tolerate limited leaf feeding, and that in most cases the damage is cosmetic and will not kill the plant.

What to do: Protect it only through the few peak weeks: handpick into soapy water in the cool of morning, harvest regularly through July and August to take the feeding pressure off the edible parts, and keep the plant well watered — a vigorous plant outgrows feeding that looks worse than it is. Do not hang a beetle trap.

Documented range: states listed as Japanese-beetle infested · University of Minnesota Extension, National Plant Board

The full japanese beetle playbook

Only pests whose documented range and host relationship both trace to a primary source appear here — so a quiet section means we have nothing sourced to tell you, not that your garden is pest-free.

Common Questions About Growing Basil in Mississippi

When can I plant Basil in Mississippi?

Mississippi's last spring hard freeze (28°F) clears between Feb 17 and Mar 3, and the first fall hard freeze lands between Nov 21 and Nov 30 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Basil, so this page does not state whether it overwinters in Mississippi and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.

What hardiness zone is Basil grown in across Mississippi?

Mississippi spans USDA hardiness zones 7b-9b (USDA ARS PHZM 2023). Basil carries a range of zones 10-11, so the overlap zones are where outdoor growing is most reliable.

How many frost-free days does a typical Mississippi site have?

A typical Mississippi site sees ~273 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Basil needs 80+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date. In cooler counties like Tishomingo, the freeze-free season runs shorter than the state average, so verify your own county's window.

Is Basil native to Mississippi?

No — the USDA PLANTS Database lists Basil as introduced rather than native in the Lower 48, so it is not part of Mississippi's native flora. It grows here as a garden plant; pairing it with a few Mississippi natives keeps local pollinators fed too.

How should I amend the soil for Basil in Mississippi?

Basil tolerates pH 4.3-8.2 and well (dry spells) drainage (FAO ECOCROP). That is a 3.9-unit span, acid ground through alkaline, so pH is rarely what limits this plant on a Mississippi site — amend for drainage and organic matter first.

Will Basil actually grow on my specific land in Mississippi?

State-level zone + climate data is a sketch. A Growable Ground parcel report scores basil against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.

Free Report

Check your specific parcel in Mississippi

State-level data is a sketch. Your Growable Ground report scores basil against your parcel's exact soil, sun, drainage, and frost data — not zone averages.

Three things about your lot that Mississippi basil averages can't show:

Your soil pHYour frost-free days — Mississippi averages 273Your sun & shade

We read public map data around Mississippi — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the Mississippi basil average

Analysis by the Growable Ground research team, grounded in USDA PLANTS, USDA NRCS SSURGO, NOAA Climate Normals (1991-2020), and named Cooperative Extension sources. How we know →

Cite this dataset

Kirchick, M. (2026). Growable Ground Plant Database [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21435643

Licensed CC BY-NC 4.0. DOI 10.5281/zenodo.21435643

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