Yes — Strong Match
eggplant is grown in zones 2-12, which covers every zone Missouri contains (5b-8a). Whether the season is long enough is the question that remains.
Eggplant in Missouri — the short answer
Eggplant in Missouri: grown in zones 2–12, full sun.
- Plant zones
- 2-12
- Not verified — NC State Extension Gardener Plant Toolbox lists zones 9a–12b
- Missouri zones
- 5b-8a
- USDA PHZM 2023
- Frost window
- Mar 27 - Apr 2 – Oct 31 - Nov 7
- NOAA RCC ACIS 1991-2020, 28°F
- Shortest county season
- 192 days
- NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
- Days to maturity
- 75 days
- Growable Ground Plant Database
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.
Your yard isn't the whole zone.
Missouri spans zones 5b-8a, 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 eggplant against your parcel's actual hardiness, soil, and sun.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
No card required · your parcel report in seconds — read in full free for your first 14 days
Missouri is not one climate
A single Missouri answer averages 115 counties whose growing seasons are 66 days apart — from 192 frost-free days in Crawford County to 258 in Pemiscot County. Which end of that your land sits nearer changes what eggplant can finish before the first hard freeze.
The middle half of 115 counties runs 211–225 days, with a median of 219 days — a 66-day span end to end.
Measured across 115 Missouri counties. NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.
Where in Missouri Fits Best
Even within Missouri's zones 5b-8a, county microclimates differ enough to change what thrives. These counties carry the closest zone match for eggplant (USDA PHZM 2023):
Zone Comparison
Eggplant Needs
- USDA Zones: 2-12
- Sun: Full Sun
- Mature size: 3 ft tallWe haven't confirmed this against a published source yet.
- Picking window: ~45 days of harvestWe haven't confirmed this against a published source yet.
- Drought tolerance: Low
Missouri Has
- USDA Zones: 5b-8a
- Last Hard Freeze (28°F): Mar 27 - Apr 2
- First Hard Freeze (28°F): Oct 31 - Nov 7
- Annual Rainfall: 34-50 inches
- Common Soils: Silt loam, Clay loam, Loess
Plant Zone Range (zones 2-12)
Preferred Soil pH
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Eggplant in Missouri
The frost window
Across Missouri, the last spring hard freeze (28°F) clears between Mar 27 and Apr 2, and the first fall hard freeze lands between Oct 31 and Nov 7 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 212-day window you can count on — up to 225 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 eggplant goes out, not when it starts. It is sown under cover about 9 weeks ahead, so counting back from Missouri's late-side last freeze of Apr 2 is what fixes your sowing date — and a yard that clears frost earlier than the state's late date starts earlier still.
Grown as an annual here
Eggplant is a true perennial in its home range — it overwinters from USDA zone 9 and warmer (NC State Extension Gardener Plant Toolbox) — but Missouri runs as cold as zone 5, so it is killed back each winter and replanted each spring. Treat it on the season schedule above, not as a permanent planting: there is no fall establishment window for it here.
Timing tuned to sub-state frost dates — Crawford County, not the statewide average.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
Eggplant is grown in zones 2–12, which covers every zone Missouri contains (5b-8a). It overwinters in the ground only in zone 9 and warmer (NC State Extension Gardener Plant Toolbox). Missouri's typical season runs ~219 frost-free days against the ~70 eggplant needs.
Growing degree days
Eggplant needs ~2400 GDD (base 50°F) to ripen. We haven't confirmed this against a published source yet. The state median runs ~3770 GDD (from PRISM 1991-2020 climate normals), so Missouri'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
Eggplant tolerates a wide pH range (pH 4.3-8.5) — 4.2 units, acid ground through alkaline — so soil acidity is rarely what limits it in Missouri. 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 5.5 and 6.8 — worth knowing before you decide whether a Missouri soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your Missouri site is heavier clay or sits in a low spot, a raised bed lifts the roots above wet ground, or work in compost.
Your land, not the state average
SSURGO maps about 31.8% of Missouri as poorly or somewhat-poorly drained, and the class flips parcel to parcel. Eggplant 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 requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. Missouri soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Before you plant eggplant for food
Anything you grow to eat takes up what is in the ground it grows in, so what is on record near you is worth knowing before eggplant goes in. What follows is Missouri’s documented federal record at state scale — a screening signal, not a soil test, and not a statement about any one lot.
Safe to Grow Here?
What the federal record shows across Missouri — and how to grow with it.
We checked the federal record across Missouri — 23,505 documented sites across 7 of the 8 source types we track.
The most significant on record: 270 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.
Missouri carries one of the heavier federal records we track — and that's not a verdict on your yard. Proximity to a documented site is information, not a diagnosis: nothing here says any particular parcel is affected. It does earn one concrete step — before food beds go in the ground, a professional soil test tells you exactly what you're working with, and raised beds of imported, lab-tested soil grow well almost anywhere in the meantime.
Sources Checked
across Missouri
Severity Distribution
across Missouri
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Missouri, two things run higher than the national average across Missouri — Mining (4,339 sites) and CAFO (595 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Sources: EPA, USGS — 950K documented sites tracked nationwide across 8 federal source types.
What Else to Consider for Eggplant in Missouri
The zone range tells you where eggplant is grown — but Missouri growers also need to think about:
Highly variable weather with late frosts and early heat
Heavy clay soils in many regions
Ozark soils are thin and rocky
Growing eggplant here specifically
Eggplant roots run medium and prefer pH 4.3–8.5, but drainage comes first here: SSURGO maps about 31.8% of Missouri as poorly or somewhat-poorly drained, and wet ground rots its crown before pH ever matters.
Plant eggplant on a raised, gravel-amended berm so water drains fast and the crown stays dry. How to handle it →
What to actually do about these — and the constraints that apply to every Missouri grower, not just eggplant — is covered on the Missouri growing guide.
Timing shifts within Missouri
Missouri isn't one climate. In Crawford County, the last hard freeze (28°F) holds until about Apr 10 — roughly 12 days later than the recorded state median — so plant eggplant to your county's window, not the statewide date.
County last-freeze dates: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). A parcel report resolves your address's own frost dates.
Where in Missouri Eggplant Is Zone-Hardy
Eggplant is rated for USDA zones 2–12. Every one of Missouri’s 115 counties sits inside that band — from Atchison County at zone 5b to Pemiscot County at zone 7b — so winter cold is not what decides this plant anywhere in the state. What is left to vary is your own parcel: slope, shelter and cold-air drainage routinely move a site half a zone either way from the county figure.
Across those 115 counties Missouri’s winter-low ladder runs from zone 5b in Atchison County to zone 7b in Pemiscot County — 2 USDA zones of spread, which is 20°F between the two counties’ average coldest night of the year. That is why a statewide hardiness answer is where you start and not where you finish.
The planting window moves with it. Crawford County holds its last hard freeze (28°F) until about Apr 10, while Pemiscot County is clear by Mar 9 — 32 days apart. Set eggplant out on your county’s date, not the state’s.
County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. County last-freeze dates: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F killing freeze — earlier than the folk 32°F "last frost". Eggplant’s zone 2–12 band: Not verified — NC State Extension Gardener Plant Toolbox lists zones 9a–12b. A parcel report resolves your address’s own zone and frost dates rather than its county’s.
Pollinator + Wildlife Value
Eggplant draws native bees (moderate value). Planting it near vegetable beds can lift fruit set on neighboring crops. Outdoors, eggplant can only work that bloom inside Missouri's frost window — roughly 219 days, opening after the last 28°F freeze (Mar 27 - Apr 2) and closing at the first (Oct 31 - Nov 7), per NOAA Regional Climate Centers ACIS, 1991-2020. Pollinator value: We haven't confirmed this against a published source yet.
Good to Know Before You Plant Eggplant
Eggplant is listed as toxic to dogs, cats (leaves, stems) at a mild level. (Source: NC State Extension Gardener Plant Toolbox.) Most listed plants only cause brief upset — a raised bed or a fenced corner usually keeps curious pets clear. Worth knowing for placement: in Missouri this is a one-season plant and the first hard freeze (Oct 31 - Nov 7) takes it down, so the exposure above is a summer-long one rather than something standing in the bed all year.
Missouri Cooperative Extension
For Missouri-specific cultivar recommendations, planting calendars, and pest pressure for eggplant, the canonical source is MU Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Eggplant native to Missouri?
No — the USDA PLANTS Database lists Eggplant as introduced rather than native in the Lower 48, so it is not part of Missouri's native flora. It grows here as a garden plant; pairing it with a few Missouri natives keeps local pollinators fed too.
Looking for plants that belong here? The Missouri growing guide lists plants that USDA PLANTS records growing in Missouri and that Kew and NatureServe Explorer both list in its native range, leaving out any that NatureServe flags as exotic there or that our audit holds.
State records: USDA PLANTS Database state-distribution data (presence, not state-level nativity), accessed 2026-10-19.
Common Questions About Growing Eggplant in Missouri
When can I plant Eggplant in Missouri?
Missouri's last spring hard freeze (28°F) clears between Mar 27 and Apr 2, and the first fall hard freeze lands between Oct 31 and Nov 7 (NOAA Regional Climate Centers ACIS, 1991-2020). Eggplant overwinters only from USDA zone 9 and warmer, and Missouri runs as cold as zone 5, so it is grown as an annual here — plant it after the last hard freeze, two to three weeks later for tender stock, and expect to replant next spring rather than establishing it for the long term.
What hardiness zone is Eggplant grown in across Missouri?
Missouri spans USDA hardiness zones 5b-8a (USDA ARS PHZM 2023). Eggplant carries a range of zones 2-12, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Missouri site have?
A typical Missouri site sees ~219 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Eggplant needs 70+ 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 Crawford, the freeze-free season runs shorter than the state average, so verify your own county's window.
Is Eggplant native to Missouri?
No — the USDA PLANTS Database lists Eggplant as introduced rather than native in the Lower 48, so it is not part of Missouri's native flora. It grows here as a garden plant; pairing it with a few Missouri natives keeps local pollinators fed too.
How should I amend the soil for Eggplant in Missouri?
Eggplant tolerates pH 4.3-8.5 and well (dry spells) drainage (FAO ECOCROP). That is a 4.2-unit span, acid ground through alkaline, so pH is rarely what limits this plant on a Missouri site — amend for drainage and organic matter first.
Will Eggplant actually grow on my specific land in Missouri?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores eggplant against your address's mapped soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Missouri
State-level data is a sketch. Your Growable Ground report scores eggplant against your land's mapped soil, modelled sun, drainage, and frost data — not zone averages.
Three things about your lot that Missouri eggplant averages can't show:
We read public map data around Missouri — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Missouri eggplant average
Explore More
Growing guides for eggplant
Explore Missouri county by county
Missouri carries 115 counties with their own USDA zone — a sample of the growing pages for eggplant there:
Where else eggplant grows
Eggplant's zone band crosses state lines — these are the states closest to Missouri in winter climate where it also has a page, plus the far ends of its range. Each one re-answers the question with that state's own record.
More to grow in Missouri
Missouri has a growing page for 890 plants — a rotating sample of the rest of the shelf.
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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