Selma, Oregon, sits in USDA hardiness zone 8b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Well-matched crops include cabbage, fig, california poppy, 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 Selma, 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 Selma 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 Selma — soil, climate, flood, and parcel records. How we handle your address.
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Selma — the short answer
Selma, Oregon: USDA zone 8b, about 201 days between hard freezes, across 4K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 9
- 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
- ~201
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K 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 8b is Selma's average, not your lot's — a low corner or a tree line moves it. Against Selma's 201-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Selma
Each reading below is measured for Selma itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSelma runs about 201 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
MeasuredSelma sits in USDA hardiness zone 8b.
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 Selma is in
Selma sits in the Klamath Mountains/California High North Coast Range — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Selma's own centroid rather than borrowed from Josephine County.
What Grows in Selma
Every plant below cleared Selma's own zone 8b and its 201-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Selma?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 9 (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. 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 Selma
Closest first, within ~10 miles of Selma. Listing isn't leaking, and distance isn't exposure.
- Weather PeridotiteMining · 350 ft
- SELMA 76Underground Storage Tanks · 400 ft
- SELMA STATION LLCUnderground Storage Tanks · 0.7 mi
- 37S/08W-35DBBNitrate · 2.0 mi
- Unnamed ProspectMining · 2.0 mi
- Squaw Creek ChromeMining · 2.1 mi
- SHELTON, BRUCEUnderground Storage Tanks · 2.3 mi
- RheaMining · 2.5 mi
- Rhea ChromiteMining · 2.5 mi
- Horse Shoe LodeMining · 2.5 mi
- Cedar CreekMining · 3.2 mi
- Bluff ProspectMining · 3.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Selma'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 Selma.
Total Sites
314
within ~10 miles of Selma
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Selma
Severity Distribution
within ~10 miles of Selma
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Selma, Mining runs higher than the national average — 280 sites within ~10 miles of Selma. That's not a problem with your land — it's information about it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Selma
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 Selma average
Your land is one point inside Selma
Everything above resolves to Selma as a whole — one PHZM band and one 28°F frost record, read across 4K 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 Selma Average
Selma Average
- ●USDA Zones 8b, averaged across Selma
- ●One soil character for all of Selma
- ●Frost dates read at Selma's scale: Apr 9 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Selma's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Selma
Pull a site-specific report for your exact address in Selma, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Selma averages can't show:
We read public map data around Selma — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Selma average
How we know this about Selma
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 Selma’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 Selma
When does frost risk typically end in Selma?
The last hard freeze (28°F) in Selma typically lands around Apr 9, 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 30.
When is the first frost in Selma?
The first hard freeze (28°F) in Selma 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 201 days after the spring freeze cleared.
How long is the growing season in Selma?
Measured between 28°F hard freezes, Selma sees about 201 frost-free days — roughly Apr 9 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 30 to Oct 13, about 166 days.
Is the soil safe to grow vegetables in Selma?
The federal record around Selma is a meaningful one — 314 documented sites, mostly Mining entries (280), the nearest Mining record under a tenth of a mile 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 Selma?
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 Selma's scale — its 8b band and its 201-day season. Your yard writes its own version of Selma'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 Selma’s own scale
6 of the readings below were taken at Selma's own scale — its own ~201-day season between 28°F freezes, the 4,132 acres it covers and 314 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Selma's own USDA hardiness band, zones 8bUSDA PHZM 2023
- Selma's own 28°F hard-freeze dates, about Apr 9 and Oct 27 and the ~201-day span between themNOAA 1991–2020 Climate Normals
- 314 documented contamination sites on the federal record near Selma, the closest Mining record under a tenth of a mile out from the town centreFederal environmental registers
- Selma's boundary and the 4,132 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~201-day seasonGrowable Ground crop-matching engine
- The ecoregion at Selma's own centroid, the Klamath Mountains/California High North Coast RangeUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Selma's 4,132 acres read through its county's SSURGO summaryfrom Josephine County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Josephine County
- The growing challenges every Oregon grower plans around — written at state scale, so they stay on the state guidefrom Oregon
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Josephine County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Selma's 4,132 acreswhy one lot differs from the next →
- Which side of Selma you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,132 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Mining record under a tenth of a mile 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 Selma-wide figureread your own land →
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