Bly, Oregon, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
The conditions favor cabbage, blackberry, california poppy, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Bly, 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 Bly 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 Bly — soil, climate, flood, and parcel records. How we handle your address.
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Bly — the short answer
Bly, Oregon: USDA zone 6a, about 125 days between hard freezes, across 541 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~125
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 541 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 Bly's average, not your lot's — a low corner or a tree line moves it. Against Bly's 125-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Bly
Each reading below is measured for Bly itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBly runs about 125 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
MeasuredBly 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 Bly is in
Bly sits in the Eastern Cascades Slopes and Foothills — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Bly's own centroid rather than borrowed from Klamath County.
What Grows in Bly
Every plant below cleared Bly's own zone 6a and its 125-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Bly?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Apr 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 24 — long-season crops need about 90 days of runway, quick greens only 30. When the window is tight, the fall moves are quick ones — baby greens, radishes, and garlic set for next season.
What's on the federal record near Bly
Closest first, within ~10 miles of Bly. Listing isn't leaking, and distance isn't exposure.
- BLY CHEVRONUnderground Storage Tanks · 2200 ft
- CENTURYTEL OF EASTERN OREGON, INC.Underground Storage Tanks · 2300 ft
- USDA USFS R06 FREMONT WINEMA NF BLY RDBrownfields · 2.3 mi
- BLY RANGER DISTRICTUnderground Storage Tanks · 2.3 mi
- OR STATE HWY 4-11 - BLYUnderground Storage Tanks · 2.3 mi
Measured from Bly'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 Bly.
Severity Distribution
within ~10 miles of Bly
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
Check your specific parcel in Bly
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 Bly average
Your land is one point inside Bly
Everything above resolves to Bly as a whole — one PHZM band and one 28°F frost record, read across 541 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 Bly Average
Bly Average
- ●USDA Zones 6a, averaged across Bly
- ●One soil character for all of Bly
- ●Frost dates read at Bly's scale: May 22 to Sep 24
YOUR Parcel
- ✓Your exact zone, not Bly's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Bly
Pull a site-specific report for your exact address in Bly, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Bly averages can't show:
We read public map data around Bly — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Bly average
How we know this about Bly
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 Bly’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 Bly
When does frost risk typically end in Bly?
The last hard freeze (28°F) in Bly typically lands around May 22, 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 12.
When is the first frost in Bly?
The first hard freeze (28°F) in Bly typically arrives around Sep 24, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 10, so the watching starts about Aug 25 — about 125 days after the spring freeze cleared.
How long is the growing season in Bly?
Measured between 28°F hard freezes, Bly sees about 125 frost-free days — roughly May 22 through Sep 24, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 12 to Sep 10, about 90 days.
Is the soil safe to grow vegetables in Bly?
The federal record around Bly is light — 5 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (4), the nearest Underground Storage Tanks record about 0.4 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do gardeners stretch the season in Bly?
With about 125 frost-free days between hard freezes, Bly 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 153 to 181 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 22 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Bly's scale — its 6a band and its 125-day season. Your yard writes its own version of Bly'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 Bly’s own scale
6 of the readings below were taken at Bly's own scale — its own ~125-day season between 28°F freezes, the 541 acres it covers and 5 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Bly's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Bly's own 28°F hard-freeze dates, about May 22 and Sep 24 and the ~125-day span between themNOAA 1991–2020 Climate Normals
- 5 documented contamination sites on the federal record near Bly, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Bly's boundary and the 541 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~125-day seasonGrowable Ground crop-matching engine
- The ecoregion at Bly's own centroid, the Eastern Cascades Slopes and FoothillsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Bly's 541 acres read through its county's SSURGO summaryfrom Klamath County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Klamath 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 Klamath County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Bly's 541 acreswhy one lot differs from the next →
- Which side of Bly you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 541 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Bly-wide figureread your own land →
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