Stryker, Montana, sits in USDA hardiness zone 5a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
A short list that earns its place here — cabbage, cranberry, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Stryker, 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 Stryker 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 Stryker — soil, climate, flood, and parcel records. How we handle your address.
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Stryker — the short answer
Stryker, Montana: USDA zone 5a, about 129 days between hard freezes, across 659 acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~129
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 659 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 5a is Stryker's average, not your lot's — a low corner or a tree line moves it. Against Stryker's 129-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Stryker
Each reading below is measured for Stryker itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredStryker runs about 129 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredStryker sits in USDA hardiness zone 5a.
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 Stryker is in
Stryker sits in the Northern Rockies — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Stryker's own centroid rather than borrowed from Lincoln County.
What Grows in Stryker
Every plant below cleared Stryker's own zone 5a and its 129-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Stryker?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Apr 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 20 — long-season crops need about 90 days of runway, quick greens only 30. Even here the calendar’s edges hold value: thirty-day greens late in the window, then garlic and a rested bed for spring.
What's on the federal record near Stryker
Closest first, within ~10 miles of Stryker. Listing isn't leaking, and distance isn't exposure.
- BN TWIN MEADOWS PRINT 332 COMP 21Underground Storage Tanks · 1200 ft
- BN PINKHAM MOUNTAIN COMP 29Underground Storage Tanks · 1200 ft
- 34N24W31BC 01Nitrate · 0.7 mi
- ANT FLAT WORK CENTERUnderground Storage Tanks · 5.1 mi
- TREGO SCHOOL DIST 53Underground Storage Tanks · 5.1 mi
- THE TREGO GENERAL STORE INCUnderground Storage Tanks · 5.2 mi
- FORTINE MERCANTILE US 93Underground Storage Tanks · 7.0 mi
- 35N25W31CA 01Nitrate · 7.5 mi
- Rex MineMining · 8.6 mi
- 35N26W25CA 01Nitrate · 8.9 mi
- 35N26W25AB 01Nitrate · 9.0 mi
- CRYSTAL LAKES RESORT INCUnderground Storage Tanks · 9.2 mi
3 more sites are on the record inside the same radius. See them on the map
Measured from Stryker'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 Stryker.
Sources Checked
within ~10 miles of Stryker
Severity Distribution
within ~10 miles of Stryker
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
Check your specific parcel in Stryker
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 Stryker average
Your land is one point inside Stryker
Everything above resolves to Stryker as a whole — one PHZM band and one 28°F frost record, read across 659 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 Stryker Average
Stryker Average
- ●USDA Zones 5a, averaged across Stryker
- ●One soil character for all of Stryker
- ●Frost dates read at Stryker's scale: May 14 to Sep 20
YOUR Parcel
- ✓Your exact zone, not Stryker's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Stryker
Pull a site-specific report for your exact address in Stryker, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Stryker averages can't show:
We read public map data around Stryker — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Stryker average
How we know this about Stryker
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 Stryker’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 Stryker
When does frost risk typically end in Stryker?
The last hard freeze (28°F) in Stryker typically lands around May 14, 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 Jun 4.
When is the first frost in Stryker?
The first hard freeze (28°F) in Stryker typically arrives around Sep 20, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 6, so the watching starts about Aug 21 — about 129 days after the spring freeze cleared.
How long is the growing season in Stryker?
Measured between 28°F hard freezes, Stryker sees about 129 frost-free days — roughly May 14 through Sep 20, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 4 to Sep 6, about 94 days.
Is the soil safe to grow vegetables in Stryker?
The federal record around Stryker shows 19 documented sites, mostly Underground Storage Tanks entries (9), the nearest Underground Storage Tanks record about 0.2 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do gardeners stretch the season in Stryker?
With about 129 frost-free days between hard freezes, Stryker rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 157 to 185 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 14 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Stryker's scale — its 5a band and its 129-day season. Your yard writes its own version of Stryker'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 Stryker’s own scale
6 of the readings below were taken at Stryker's own scale — its own ~129-day season between 28°F freezes, the 659 acres it covers and 19 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Stryker's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Stryker's own 28°F hard-freeze dates, about May 14 and Sep 20 and the ~129-day span between themNOAA 1991–2020 Climate Normals
- 19 documented contamination sites on the federal record near Stryker, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Stryker's boundary and the 659 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~129-day seasonGrowable Ground crop-matching engine
- The ecoregion at Stryker's own centroid, the Northern RockiesUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Stryker's 659 acres read through its county's SSURGO summaryfrom Lincoln County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lincoln County
- The growing challenges every Montana grower plans around — written at state scale, so they stay on the state guidefrom Montana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Lincoln County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Stryker's 659 acreswhy one lot differs from the next →
- Which side of Stryker you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 659 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 Stryker-wide figureread your own land →
More in Montana
Wider growing context
What grows across MontanaStryker sits outside our named growing regions, so Montana as a whole is its closest context here.
Nearby growing guides