Collinwood, Tennessee, sits in USDA hardiness zone 7b — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, prickly pear, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Collinwood, 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 Collinwood 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 Collinwood — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Collinwood — the short answer
Collinwood, Tennessee: USDA zone 7b, about 219 days between hard freezes, across 2K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~219
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 2K 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 Collinwood's average, not your lot's — a low corner or a tree line moves it. Against Collinwood's 219-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Collinwood
Each reading below is measured for Collinwood itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCollinwood runs about 219 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
MeasuredCollinwood 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 Collinwood is in
Collinwood sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Collinwood's own centroid, and it is not what its county reads: Wayne County is mostly Interior Plateau. The wider page above you is answering a different question about different ground.
What Grows in Collinwood
Every plant below cleared Collinwood's own zone 7b and its 219-day season. Each card opens that plant's Tennessee profile. How we score.
Is it too late to plant in Collinwood?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 4 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Collinwood
Closest first, within ~10 miles of Collinwood. Listing isn't leaking, and distance isn't exposure.
- Kephart S/sUnderground Storage Tanks · 1400 ft
- Rich'sUnderground Storage Tanks · 1400 ft
- Turner Williams GroceryUnderground Storage Tanks · 1400 ft
- Dennis MarketUnderground Storage Tanks · 1400 ft
- P And K Service StationUnderground Storage Tanks · 1400 ft
- Angelica/ Collinwood PlantUnderground Storage Tanks · 1400 ft
- Burn's GroceryUnderground Storage Tanks · 1400 ft
- Carmel Holt GroceryUnderground Storage Tanks · 1400 ft
- Andrew's GroceryUnderground Storage Tanks · 1400 ft
- S And S Service StationUnderground Storage Tanks · 1500 ft
- Hasti- Mart no. 1Underground Storage Tanks · 1600 ft
- Collinwood High SchoolUnderground Storage Tanks · 1600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Collinwood'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 Collinwood.
Sources Checked
within ~10 miles of Collinwood
Severity Distribution
within ~10 miles of Collinwood
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Collinwood, Underground Storage Tanks runs higher than the national average — 47 sites within ~10 miles of Collinwood. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Collinwood
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 Collinwood average
Your land is one point inside Collinwood
Everything above resolves to Collinwood as a whole — one PHZM band and one 28°F frost record, read across 2K 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 city 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 Collinwood Average
Collinwood Average
- ●USDA Zones 7b, averaged across Collinwood
- ●One soil character for all of Collinwood
- ●Frost dates read at Collinwood's scale: Mar 30 to Nov 4
YOUR Parcel
- ✓Your exact zone, not Collinwood's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Collinwood
Pull a site-specific report for your exact address in Collinwood, Tennessee — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Collinwood averages can't show:
We read public map data around Collinwood — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Collinwood average
How we know this about Collinwood
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Collinwood’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 city grain anywhere on this page — there is no city-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 Collinwood
When does frost risk typically end in Collinwood?
The last hard freeze (28°F) in Collinwood typically lands around Mar 30, 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 20.
When is the first frost in Collinwood?
The first hard freeze (28°F) in Collinwood typically arrives around Nov 4, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 21, so the watching starts about Oct 5 — about 219 days after the spring freeze cleared.
How long is the growing season in Collinwood?
Measured between 28°F hard freezes, Collinwood sees about 219 frost-free days — roughly Mar 30 through Nov 4, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 20 to Oct 21, about 184 days.
Is the soil safe to grow vegetables in Collinwood?
The federal record around Collinwood is a meaningful one — 54 documented sites, mostly Underground Storage Tanks entries (47), the nearest Underground Storage Tanks record about 0.3 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 Collinwood?
From about Oct 5 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 4 (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 4. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Collinwood's scale — its 7b band and its 219-day season. Your yard writes its own version of Collinwood'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 Collinwood’s own scale
6 of the readings below were taken at Collinwood's own scale — its own ~219-day season between 28°F freezes, the 1,780 acres it covers and 54 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Collinwood's own USDA hardiness band, zones 7bUSDA PHZM 2023
- Collinwood's own 28°F hard-freeze dates, about Mar 30 and Nov 4 and the ~219-day span between themNOAA 1991–2020 Climate Normals
- 54 documented contamination sites on the federal record near Collinwood, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Collinwood's boundary and the 1,780 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~219-day seasonGrowable Ground crop-matching engine
- Collinwood sits in the Southeastern Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Collinwood's 1,780 acres read through its county's SSURGO summaryfrom Wayne County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wayne County
- The growing challenges every Tennessee grower plans around — written at state scale, so they stay on the state guidefrom Tennessee
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Wayne County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Collinwood's 1,780 acreswhy one lot differs from the next →
- Which side of Collinwood you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,780 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Collinwood-wide figureread your own land →
More in Tennessee
Wider growing context
What grows across TennesseeCollinwood sits outside our named growing regions, so Tennessee as a whole is its closest context here.
Nearby growing guides