Alexander, Kansas, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Crops well matched to these conditions include cabbage, hazelnut, lavender, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Alexander, 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 Alexander 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 Alexander — soil, climate, flood, and parcel records. How we handle your address.
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Alexander — the short answer
Alexander, Kansas: USDA zone 6b, about 198 days between hard freezes, across 166 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~198
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 166 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 6b is Alexander's average, not your lot's — a low corner or a tree line moves it. Against Alexander's 198-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Alexander
Each reading below is measured for Alexander itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAlexander runs about 198 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
MeasuredAlexander sits in USDA hardiness zone 6b.
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 Alexander is in
Alexander sits in the Central Great Plains — EPA Level III, inside the wider Great Plains. That is read at Alexander's own centroid rather than borrowed from Rush County.
What Grows in Alexander
Every plant below cleared Alexander's own zone 6b and its 198-day season. Each card opens that plant's Kansas profile. How we score.
Is it too late to plant in Alexander?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — 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.
What's on the federal record near Alexander
Closest first, within ~10 miles of Alexander. Listing isn't leaking, and distance isn't exposure.
- FARMERS COOP OIL & SUPPLYUnderground Storage Tanks · 950 ft
- 18S 20W 20DCA 01Nitrate · 1300 ft
- MID STATE FARMERS CO-OPUnderground Storage Tanks · 1400 ft
- 18S 20W 20DBB 01Nitrate · 1700 ft
- 18S 20W 20ACC 01Nitrate · 2000 ft
- 18S 20W 19ACC 01Nitrate · 1.3 mi
- 18S 20W 15CCB 01Nitrate · 1.5 mi
- 18S 20W 19CCB 01Nitrate · 1.7 mi
- 18S 20W 14CCB 01Nitrate · 2.4 mi
- 19S 20W 04BBB 01Nitrate · 2.4 mi
- 18S 20W 36ABB 01Nitrate · 4.0 mi
- 17S 20W 29CDD 01Nitrate · 4.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Alexander'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 Alexander.
Total Sites
72
within ~10 miles of Alexander
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Alexander
Severity Distribution
within ~10 miles of Alexander
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Alexander, Nitrate runs higher than the national average — 66 sites within ~10 miles of Alexander. That's not a problem with your land — it's information about it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Alexander
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 Alexander average
Your land is one point inside Alexander
Everything above resolves to Alexander as a whole — one PHZM band and one 28°F frost record, read across 166 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 Alexander Average
Alexander Average
- ●USDA Zones 6b, averaged across Alexander
- ●One soil character for all of Alexander
- ●Frost dates read at Alexander's scale: Apr 12 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Alexander's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Alexander
Pull a site-specific report for your exact address in Alexander, Kansas — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Alexander averages can't show:
We read public map data around Alexander — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Alexander average
How we know this about Alexander
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 Alexander’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 Alexander
When does frost risk typically end in Alexander?
The last hard freeze (28°F) in Alexander typically lands around Apr 12, 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 3.
When is the first frost in Alexander?
The first hard freeze (28°F) in Alexander typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 198 days after the spring freeze cleared.
How long is the growing season in Alexander?
Measured between 28°F hard freezes, Alexander sees about 198 frost-free days — roughly Apr 12 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 3 to Oct 13, about 163 days.
Is the soil safe to grow vegetables in Alexander?
The federal record around Alexander is a meaningful one — 72 documented sites, mostly Nitrate entries (66), the nearest Underground Storage Tanks record about 0.2 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 Alexander?
From about Sep 27 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Alexander's scale — its 6b band and its 198-day season. Your yard writes its own version of Alexander'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 Alexander’s own scale
6 of the readings below were taken at Alexander's own scale — its own ~198-day season between 28°F freezes, the 166 acres it covers and 72 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Alexander's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Alexander's own 28°F hard-freeze dates, about Apr 12 and Oct 27 and the ~198-day span between themNOAA 1991–2020 Climate Normals
- 72 documented contamination sites on the federal record near Alexander, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Alexander's boundary and the 166 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~198-day seasonGrowable Ground crop-matching engine
- The ecoregion at Alexander's own centroid, the Central Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Alexander's 166 acres read through its county's SSURGO summaryfrom Rush County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rush County
- The growing challenges every Kansas grower plans around — written at state scale, so they stay on the state guidefrom Kansas
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Rush County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Alexander's 166 acreswhy one lot differs from the next →
- Which side of Alexander you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 166 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Alexander-wide figureread your own land →
More in Kansas
Wider growing context
What grows across KansasAlexander sits outside our named growing regions, so Kansas as a whole is its closest context here.
Nearby growing guides