Spanish Lake, Missouri, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
These conditions suit cabbage, hazelnut, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Spanish Lake, 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 Spanish Lake 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 Spanish Lake — soil, climate, flood, and parcel records. How we handle your address.
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Spanish Lake — the short answer
Spanish Lake, Missouri: USDA zone 7a, about 248 days between hard freezes, across 5K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~248
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 5K 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 7a is Spanish Lake's average, not your lot's — a low corner or a tree line moves it. Against Spanish Lake's 248-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Spanish Lake
Each reading below is measured for Spanish Lake itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSpanish Lake runs about 248 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
MeasuredSpanish Lake sits in USDA hardiness zone 7a.
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 Spanish Lake is in
Spanish Lake sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Spanish Lake's own centroid rather than borrowed from St. Louis County.
What Grows in Spanish Lake
Every plant below cleared Spanish Lake's own zone 7a and its 248-day season. Each card opens that plant's Missouri profile. How we score.
Is it too late to plant in Spanish Lake?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 22 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Spanish Lake
Survey cells within 31 miles of Spanish Lake checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 231 miles off. What to watch for.
What's on the federal record near Spanish Lake
Closest first, within ~10 miles of Spanish Lake. Listing isn't leaking, and distance isn't exposure.
- SPANISH LAKE PARKUnderground Storage Tanks · 1900 ft
- MPC 9Underground Storage Tanks · 2400 ft
- WALLIS PETROLEUM, L.C. #9058Underground Storage Tanks · 2400 ft
- FAMILY DOLLAR # 5065Brownfields · 2500 ft
- MPC 12Underground Storage Tanks · 2500 ft
- SIEMANS OILUnderground Storage Tanks · 0.5 mi
- SPANISH LAKE FIRE DEPARTMENTUnderground Storage Tanks · 0.5 mi
- MIDLAND AUTO & TIRE # 3Brownfields · 0.6 mi
- MPC 77Underground Storage Tanks · 0.8 mi
- TRINITY CATHOLIC HIGH SCHOOLBrownfields · 0.9 mi
- T47N R07E 35BAA1Nitrate · 1.1 mi
- WOLCO, INC.Brownfields · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Spanish Lake'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 Spanish Lake.
Sources Checked
within ~10 miles of Spanish Lake
Severity Distribution
within ~10 miles of Spanish Lake
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Spanish Lake, two things run higher than the national average within ~10 miles of Spanish Lake — Superfund (35 sites) and Toxics Release Inventory (171 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Spanish Lake
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 Spanish Lake average
Your land is one point inside Spanish Lake
Everything above resolves to Spanish Lake as a whole — one PHZM band and one 28°F frost record, read across 5K 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 Spanish Lake Average
Spanish Lake Average
- ●USDA Zones 7a, averaged across Spanish Lake
- ●One soil character for all of Spanish Lake
- ●Frost dates read at Spanish Lake's scale: Mar 19 to Nov 22
YOUR Parcel
- ✓Your exact zone, not Spanish Lake's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Spanish Lake
Pull a site-specific report for your exact address in Spanish Lake, Missouri — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Spanish Lake averages can't show:
We read public map data around Spanish Lake — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Spanish Lake average
How we know this about Spanish Lake
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 Spanish Lake’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 Spanish Lake
When does frost risk typically end in Spanish Lake?
The last hard freeze (28°F) in Spanish Lake typically lands around Mar 19, 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 9.
When is the first frost in Spanish Lake?
The first hard freeze (28°F) in Spanish Lake typically arrives around Nov 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 8, so the watching starts about Oct 23 — about 248 days after the spring freeze cleared.
How long is the growing season in Spanish Lake?
Measured between 28°F hard freezes, Spanish Lake sees about 248 frost-free days — roughly Mar 19 through Nov 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 9 to Nov 8, about 213 days.
Is the soil safe to grow vegetables in Spanish Lake?
The federal record around Spanish Lake runs heavier than most — 2,318 documented sites, mostly Underground Storage Tanks entries (1,395), the nearest Underground Storage Tanks record about 0.4 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Spanish Lake?
From about Oct 23 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 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Spanish Lake's scale — its 7a band and its 248-day season. Your yard writes its own version of Spanish Lake'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 Spanish Lake’s own scale
7 of the readings below were taken at Spanish Lake's own scale — its own ~248-day season between 28°F freezes, the 4,718 acres it covers and 2,318 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Spanish Lake's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Spanish Lake's own 28°F hard-freeze dates, about Mar 19 and Nov 22 and the ~248-day span between themNOAA 1991–2020 Climate Normals
- 2,318 documented contamination sites on the federal record near Spanish Lake, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Spanish Lake's boundary and the 4,718 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~248-day seasonGrowable Ground crop-matching engine
- The ecoregion at Spanish Lake's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
- Lanternfly survey cells around Spanish Lake checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Spanish Lake's 4,718 acres read through its county's SSURGO summaryfrom St. Louis County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom St. Louis County
- The growing challenges every Missouri grower plans around — written at state scale, so they stay on the state guidefrom Missouri
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom St. Louis County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Spanish Lake's 4,718 acreswhy one lot differs from the next →
- Which side of Spanish Lake you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,718 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 Spanish Lake-wide figureread your own land →