Klondike Corner, New Hampshire, sits in USDA hardiness zone 6a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Klondike Corner, 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 Klondike Corner 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 Klondike Corner — soil, climate, flood, and parcel records. How we handle your address.
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Klondike Corner — the short answer
Klondike Corner, New Hampshire: USDA zone 6a, about 184 days between hard freezes, across 2K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~184
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 6a is Klondike Corner's average, not your lot's — a low corner or a tree line moves it. Against Klondike Corner's 184-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Klondike Corner
Each reading below is measured for Klondike Corner itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredKlondike Corner runs about 184 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredKlondike Corner sits in USDA hardiness zone 6a.
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 Klondike Corner is in
Klondike Corner sits in the Northeastern Highlands — EPA Level III, inside the wider Northern Forests. That is read at Klondike Corner's own centroid rather than borrowed from Hillsborough County.
What Grows in Klondike Corner
Every plant below cleared Klondike Corner's own zone 6a and its 184-day season. Each card opens that plant's New Hampshire profile. How we score.
Is it too late to plant in Klondike Corner?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 20 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 21 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
Documented around Klondike Corner
Spotted lanternfly documented 25 miles from Klondike Corner, first recorded 2021. What to watch for.
What's on the federal record near Klondike Corner
Closest first, within ~10 miles of Klondike Corner. Listing isn't leaking, and distance isn't exposure.
- RESTORATION STATION & COLLISION REPAIR LLCBrownfields · 1.0 mi
- NEW BOSTON AIR FORCE STATIONBrownfields · 1.0 mi
- NH-NCW 2Nitrate · 1.0 mi
- FORMER BETSY FREY PROPERTYUnderground Storage Tanks · 1.4 mi
- NEW BOSTON AIR FORCE STATIONSuperfund · 1.6 mi
- MANSFIELD BUS LINESUnderground Storage Tanks · 2.4 mi
- NH-NCW 3Nitrate · 2.6 mi
- SKVERIANUnderground Storage Tanks · 2.7 mi
- FORMER BARSS CONVENIENCE STOREUnderground Storage Tanks · 2.8 mi
- DANIELS OIL COUnderground Storage Tanks · 2.9 mi
- NH-BIW 703Nitrate · 2.9 mi
- NH-NCW 8Nitrate · 3.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Klondike Corner'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 Klondike Corner.
Total Sites
908
within ~10 miles of Klondike Corner
Risk Level
Elevated
Highest-severity
12 Superfund sites
Sources Checked
within ~10 miles of Klondike Corner
Severity Distribution
within ~10 miles of Klondike Corner
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Klondike Corner, Superfund runs higher than the national average — 12 sites within ~10 miles of Klondike Corner. 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.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Klondike Corner
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 Klondike Corner average
Your land is one point inside Klondike Corner
Everything above resolves to Klondike Corner 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 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 Klondike Corner Average
Klondike Corner Average
- ●USDA Zones 6a, averaged across Klondike Corner
- ●One soil character for all of Klondike Corner
- ●Frost dates read at Klondike Corner's scale: Apr 20 to Oct 21
YOUR Parcel
- ✓Your exact zone, not Klondike Corner's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Klondike Corner
Pull a site-specific report for your exact address in Klondike Corner, New Hampshire — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Klondike Corner averages can't show:
We read public map data around Klondike Corner — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Klondike Corner average
How we know this about Klondike Corner
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 Klondike Corner’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 Klondike Corner
When does frost risk typically end in Klondike Corner?
The last hard freeze (28°F) in Klondike Corner typically lands around Apr 20, 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 May 11.
When is the first frost in Klondike Corner?
The first hard freeze (28°F) in Klondike Corner typically arrives around Oct 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 7, so the watching starts about Sep 21 — about 184 days after the spring freeze cleared.
How long is the growing season in Klondike Corner?
Measured between 28°F hard freezes, Klondike Corner sees about 184 frost-free days — roughly Apr 20 through Oct 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 11 to Oct 7, about 149 days.
Is the soil safe to grow vegetables in Klondike Corner?
The federal record around Klondike Corner is a meaningful one — 908 documented sites, mostly Underground Storage Tanks entries (455), the nearest Brownfields record about 1.0 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 Klondike Corner?
From about Sep 21 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 Oct 21 (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 Oct 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Klondike Corner's scale — its 6a band and its 184-day season. Your yard writes its own version of Klondike Corner'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 Klondike Corner’s own scale
7 of the readings below were taken at Klondike Corner's own scale — its own ~184-day season between 28°F freezes, the 2,168 acres it covers and 908 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Klondike Corner's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Klondike Corner's own 28°F hard-freeze dates, about Apr 20 and Oct 21 and the ~184-day span between themNOAA 1991–2020 Climate Normals
- 908 documented contamination sites on the federal record near Klondike Corner, the closest Brownfields record about 1.0 miles out from the town centreFederal environmental registers
- Klondike Corner's boundary and the 2,168 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~184-day seasonGrowable Ground crop-matching engine
- The ecoregion at Klondike Corner's own centroid, the Northeastern HighlandsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Klondike Cornerlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Klondike Corner's 2,168 acres read through its county's SSURGO summaryfrom Hillsborough County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hillsborough County
- The growing challenges every New Hampshire grower plans around — written at state scale, so they stay on the state guidefrom New Hampshire
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Hillsborough County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Klondike Corner's 2,168 acreswhy one lot differs from the next →
- Which side of Klondike Corner you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,168 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 1.0 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 Klondike Corner-wide figureread your own land →
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