Chemult, Oregon, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Expect pumpkin, blackberry, california poppy, and zucchini to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Chemult, 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 Chemult 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 Chemult — soil, climate, flood, and parcel records. How we handle your address.
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Chemult — the short answer
Chemult, Oregon: USDA zone 6a, about 70 days between hard freezes, across 165 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jun 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Aug 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~70
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 165 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 Chemult's average, not your lot's — a low corner or a tree line moves it. Against Chemult's 70-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Chemult
Each reading below is measured for Chemult itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredChemult runs about 70 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
MeasuredChemult 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 Chemult is in
Chemult sits in the Eastern Cascades Slopes and Foothills — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Chemult's own centroid rather than borrowed from Klamath County.
What Grows in Chemult
Every plant below cleared Chemult's own zone 6a and its 70-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Chemult?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around May 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jun 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Aug 27 — 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 Chemult
Closest first, within ~10 miles of Chemult. Listing isn't leaking, and distance isn't exposure.
- PILOT TRAVEL CENTERS 133Brownfields · 250 ft
- PILOT TRAVEL CENTER #133Underground Storage Tanks · 600 ft
- FREEDOM BROS. FUEL CO.Underground Storage Tanks · 700 ft
- R & D MARKETUnderground Storage Tanks · 1000 ft
- USDA USFS R06 WINEMA NF CHEMULT RANGER DISTBrownfields · 1.0 mi
- GEORGIA-PACIFIC CORPUnderground Storage Tanks · 4.0 mi
- OR STATE HWY, 4-11 CHEMULTUnderground Storage Tanks · 4.0 mi
- CHEMULT MOTELUnderground Storage Tanks · 4.0 mi
- CHEMULT OIL COMPANY, INC.Underground Storage Tanks · 4.0 mi
- CHEMULT PACIFIC PRIDEUnderground Storage Tanks · 4.0 mi
- CHEMULT CHEVRONUnderground Storage Tanks · 4.0 mi
- USDA, FS, CHEMULT, RS, WINEMA NFUnderground Storage Tanks · 5.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Chemult'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 Chemult.
Severity Distribution
within ~10 miles of Chemult
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Chemult, Underground Storage Tanks runs higher than the national average — 25 sites within ~10 miles of Chemult. That's not a problem with your land — it's information about it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Chemult
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 Chemult average
Your land is one point inside Chemult
Everything above resolves to Chemult as a whole — one PHZM band and one 28°F frost record, read across 165 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 Chemult Average
Chemult Average
- ●USDA Zones 6a, averaged across Chemult
- ●One soil character for all of Chemult
- ●Frost dates read at Chemult's scale: Jun 18 to Aug 27
YOUR Parcel
- ✓Your exact zone, not Chemult's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Chemult
Pull a site-specific report for your exact address in Chemult, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Chemult averages can't show:
We read public map data around Chemult — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Chemult average
How we know this about Chemult
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 Chemult’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 Chemult
When does frost risk typically end in Chemult?
The last hard freeze (28°F) in Chemult typically lands around Jun 18, 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 Jul 9.
When is the first frost in Chemult?
The first hard freeze (28°F) in Chemult typically arrives around Aug 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Aug 13, so the watching starts about Jul 28 — about 70 days after the spring freeze cleared.
How long is the growing season in Chemult?
Measured between 28°F hard freezes, Chemult sees about 70 frost-free days — roughly Jun 18 through Aug 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jul 9 to Aug 13, about 35 days.
Is the soil safe to grow vegetables in Chemult?
The federal record around Chemult is light — 28 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (25), the nearest Brownfields record under a tenth of a mile 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 Chemult?
With about 70 frost-free days between hard freezes, Chemult 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 98 to 126 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the Jun 18 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Chemult's scale — its 6a band and its 70-day season. Your yard writes its own version of Chemult'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 Chemult’s own scale
6 of the readings below were taken at Chemult's own scale — its own ~70-day season between 28°F freezes, the 165 acres it covers and 28 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Chemult's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Chemult's own 28°F hard-freeze dates, about Jun 18 and Aug 27 and the ~70-day span between themNOAA 1991–2020 Climate Normals
- 28 documented contamination sites on the federal record near Chemult, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Chemult's boundary and the 165 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~70-day seasonGrowable Ground crop-matching engine
- The ecoregion at Chemult'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 Chemult's 165 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 Chemult's 165 acreswhy one lot differs from the next →
- Which side of Chemult you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 165 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Chemult-wide figureread your own land →
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