Terrebonne, Oregon, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include cabbage, blackberry, 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 Terrebonne, 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 Terrebonne 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 Terrebonne — soil, climate, flood, and parcel records. How we handle your address.
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Terrebonne — the short answer
Terrebonne, Oregon: USDA zone 6b, about 150 days between hard freezes, across 650 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~150
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 650 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 Terrebonne's average, not your lot's — a low corner or a tree line moves it. Against Terrebonne's 150-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Terrebonne
Each reading below is measured for Terrebonne itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTerrebonne runs about 150 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
MeasuredTerrebonne 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 Terrebonne is in
Terrebonne sits in the Blue Mountains — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Terrebonne's own centroid, and it is not what its county reads: Deschutes County is mostly Eastern Cascades Slopes and Foothills. The wider page above you is answering a different question about different ground.
What Grows in Terrebonne
Every plant below cleared Terrebonne's own zone 6b and its 150-day season. Each card opens that plant's Oregon profile. How we score.
Is it too late to plant in Terrebonne?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Apr 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 6 — 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 Terrebonne
Closest first, within ~10 miles of Terrebonne. Listing isn't leaking, and distance isn't exposure.
- 14S13E16L01 Terrebonne City WellNitrate · 700 ft
- TERREBONNE CHEVRONUnderground Storage Tanks · 1300 ft
- TERREBONNE CFNUnderground Storage Tanks · 1500 ft
- DESCHUTES VALLEY EQUIPMENT INCUnderground Storage Tanks · 1600 ft
- 14S/13E-29BDDNitrate · 1.9 mi
- SWIFT & MCCORMICKToxics Release Inventory · 2.5 mi
- 14S/13E-23DDDNitrate · 2.8 mi
- HOME DEPOT USA HD 4032Brownfields · 3.8 mi
- CROOKED RIVER RANCH WTR COPFAS · 3.9 mi
- REDMOND CARDLOCKUnderground Storage Tanks · 3.9 mi
- DAVE HAMILTON CHEVY-OLDS INCUnderground Storage Tanks · 4.0 mi
- HAMILTON DAVE CHEVROLET OLDSMOBILE JEEP INCORPORATEDBrownfields · 4.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Terrebonne'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 Terrebonne.
Total Sites
164
within ~10 miles of Terrebonne
Risk Level
Moderate
Highest-severity
13 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Terrebonne
Severity Distribution
within ~10 miles of Terrebonne
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Terrebonne, Toxics Release Inventory runs higher than the national average — 13 sites within ~10 miles of Terrebonne. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Terrebonne
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 Terrebonne average
Your land is one point inside Terrebonne
Everything above resolves to Terrebonne as a whole — one PHZM band and one 28°F frost record, read across 650 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 Terrebonne Average
Terrebonne Average
- ●USDA Zones 6b, averaged across Terrebonne
- ●One soil character for all of Terrebonne
- ●Frost dates read at Terrebonne's scale: May 9 to Oct 6
YOUR Parcel
- ✓Your exact zone, not Terrebonne's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Terrebonne
Pull a site-specific report for your exact address in Terrebonne, Oregon — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Terrebonne averages can't show:
We read public map data around Terrebonne — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Terrebonne average
How we know this about Terrebonne
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 Terrebonne’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 Terrebonne
When does frost risk typically end in Terrebonne?
The last hard freeze (28°F) in Terrebonne typically lands around May 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 May 30.
When is the first frost in Terrebonne?
The first hard freeze (28°F) in Terrebonne typically arrives around Oct 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 22, so the watching starts about Sep 6 — about 150 days after the spring freeze cleared.
How long is the growing season in Terrebonne?
Measured between 28°F hard freezes, Terrebonne sees about 150 frost-free days — roughly May 9 through Oct 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 30 to Sep 22, about 115 days.
Is the soil safe to grow vegetables in Terrebonne?
The federal record around Terrebonne shows 164 documented sites, mostly Underground Storage Tanks entries (83), the nearest Nitrate record about 0.1 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 I protect my plants from frost in Terrebonne?
From about Sep 6 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 6 (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 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Terrebonne's scale — its 6b band and its 150-day season. Your yard writes its own version of Terrebonne'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 Terrebonne’s own scale
6 of the readings below were taken at Terrebonne's own scale — its own ~150-day season between 28°F freezes, the 650 acres it covers and 164 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Terrebonne's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Terrebonne's own 28°F hard-freeze dates, about May 9 and Oct 6 and the ~150-day span between themNOAA 1991–2020 Climate Normals
- 164 documented contamination sites on the federal record near Terrebonne, the closest Nitrate record about 0.1 miles out from the town centreFederal environmental registers
- Terrebonne's boundary and the 650 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~150-day seasonGrowable Ground crop-matching engine
- Terrebonne sits in the Blue Mountains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Terrebonne's 650 acres read through its county's SSURGO summaryfrom Deschutes County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Deschutes 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 Deschutes County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Terrebonne's 650 acreswhy one lot differs from the next →
- Which side of Terrebonne you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 650 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.1 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 Terrebonne-wide figureread your own land →