Redlands, Colorado, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Growers here do well with cabbage, hazelnut, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Redlands, 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 Redlands 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 Redlands — soil, climate, flood, and parcel records. How we handle your address.
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Redlands — the short answer
Redlands, Colorado: USDA zone 6b, about 197 days between hard freezes, across 8K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~197
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 8K 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 Redlands's average, not your lot's — a low corner or a tree line moves it. Against Redlands's 197-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Redlands
Each reading below is measured for Redlands itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRedlands runs about 197 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
MeasuredRedlands 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 Redlands is in
Redlands sits in the Colorado Plateaus — EPA Level III, inside the wider North American Deserts. That is read at Redlands's own centroid rather than borrowed from Mesa County.
What Grows in Redlands
Every plant below cleared Redlands's own zone 6b and its 197-day season. Each card opens that plant's Colorado profile. How we score.
Is it too late to plant in Redlands?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Redlands
Closest first, within ~10 miles of Redlands. Listing isn't leaking, and distance isn't exposure.
- Go-Fer Foods RedlandsUnderground Storage Tanks · 1500 ft
- UC00100222DDC-INNISNitrate · 0.5 mi
- Tiara Rado Golf CourseUnderground Storage Tanks · 0.9 mi
- Alta Convenience #6316Underground Storage Tanks · 1.1 mi
- WALKER STATE WILDLIFE AREA, WELL 17Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 2Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 4Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 18Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 12Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 19Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 3Nitrate · 1.3 mi
- WALKER STATE WILDLIFE AREA, WELL 5Nitrate · 1.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Redlands'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 Redlands.
Total Sites
584
within ~10 miles of Redlands
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Redlands
Severity Distribution
within ~10 miles of Redlands
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.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Redlands
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 Redlands average
Your land is one point inside Redlands
Everything above resolves to Redlands as a whole — one PHZM band and one 28°F frost record, read across 8K 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 Redlands Average
Redlands Average
- ●USDA Zones 6b, averaged across Redlands
- ●One soil character for all of Redlands
- ●Frost dates read at Redlands's scale: Apr 14 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Redlands's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Redlands
Pull a site-specific report for your exact address in Redlands, Colorado — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Redlands averages can't show:
We read public map data around Redlands — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Redlands average
How we know this about Redlands
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 Redlands’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 Redlands
When does frost risk typically end in Redlands?
The last hard freeze (28°F) in Redlands typically lands around Apr 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 May 5.
When is the first frost in Redlands?
The first hard freeze (28°F) in Redlands typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 197 days after the spring freeze cleared.
How long is the growing season in Redlands?
Measured between 28°F hard freezes, Redlands sees about 197 frost-free days — roughly Apr 14 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 14, about 162 days.
Is the soil safe to grow vegetables in Redlands?
The federal record around Redlands is a meaningful one — 584 documented sites, mostly Underground Storage Tanks entries (293), the nearest Underground Storage Tanks record about 0.3 miles 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 Redlands?
From about Sep 28 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 28 (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 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Redlands's scale — its 6b band and its 197-day season. Your yard writes its own version of Redlands'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 Redlands’s own scale
6 of the readings below were taken at Redlands's own scale — its own ~197-day season between 28°F freezes, the 8,252 acres it covers and 584 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Redlands's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Redlands's own 28°F hard-freeze dates, about Apr 14 and Oct 28 and the ~197-day span between themNOAA 1991–2020 Climate Normals
- 584 documented contamination sites on the federal record near Redlands, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Redlands's boundary and the 8,252 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~197-day seasonGrowable Ground crop-matching engine
- The ecoregion at Redlands's own centroid, the Colorado PlateausUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Redlands's 8,252 acres read through its county's SSURGO summaryfrom Mesa County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Mesa County
- The growing challenges every Colorado grower plans around — written at state scale, so they stay on the state guidefrom Colorado
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Mesa County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Redlands's 8,252 acreswhy one lot differs from the next →
- Which side of Redlands you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 8,252 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Redlands-wide figureread your own land →
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