What Grows in Two Buttes, Colorado

USDA Zones 6b · 159 acres

Two Buttes, Colorado, sits in USDA hardiness zone 6b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.

These conditions suit cabbage, blackberry, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.

Score your parcel · free

Even in Two Buttes, 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 Two Buttes 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 Two Buttes — soil, climate, flood, and parcel records. How we handle your address.

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Two Buttes — the short answer

Two Buttes, Colorado: USDA zone 6b, about 191 days between hard freezes, across 159 acres of town.

USDA zone
6b
USDA PHZM 2023
Last hard freeze (28°F)
Apr 15
NOAA 1991–2020 Climate Normals, 28°F — this town
First hard freeze (28°F)
Oct 23
NOAA 1991–2020 Climate Normals, 28°F — this town
Days between freezes
~191
NOAA 1991–2020 Climate Normals, 28°F — this town
Town area
159 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

6b6b
3a (Cold)13b (Hot)

Zone 6b is Two Buttes's average, not your lot's — a low corner or a tree line moves it. Against Two Buttes's 191-day season, see what your own ground reads.

Soil varies lot by lot — soil types explained.

What this means for growing in Two Buttes

Each reading below is measured for Two Buttes itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length

Measured

Two Buttes runs about 191 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

Measured

Two Buttes 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 Two Buttes is in

Two Buttes sits in the High Plains — EPA Level III, inside the wider Great Plains. That is read at Two Buttes's own centroid rather than borrowed from Baca County.

What that means for soil

What Grows in Two Buttes

Every plant below cleared Two Buttes's own zone 6b and its 191-day season. Each card opens that plant's Colorado profile. How we score.

cabbage, photograph
Growing cabbage in ColoradoZones 2–11Two Buttes's 6b — 4 zones of cold margin.
blackberry, photograph
Colorado blackberry guideZones 5–8Two Buttes's 6b — 1 zone of cold margin.
California poppy, photograph
California poppy in ColoradoZones 6–10Two Buttes's 6b is its exact cold limit.
collard greens, photograph
Collard greens: Colorado growing notesZones 2–11Two Buttes's 6b — 4 zones of cold margin.
pawpaw, photograph
Growing pawpaw in ColoradoZones 5–9Two Buttes's 6b — 1 zone of cold margin.
lavender, photograph
Colorado lavender guideZones 5–8Two Buttes's 6b — 1 zone of cold margin.
garlic, photograph
Garlic in ColoradoZones 2–10Two Buttes's 6b — 4 zones of cold margin.
pecan, photograph
Pecan: Colorado growing notesZones 5–9Two Buttes's 6b — 1 zone of cold margin.
Turkish rocket, photograph
Growing turkish rocket in ColoradoTwo Buttes's 191 days clear the ~90 it needs.
kale, photograph
Colorado kale guideZones 2–11Two Buttes's 6b — 4 zones of cold margin.
prickly pear, photograph
Prickly pear in ColoradoZones 5–10Two Buttes's 6b — 1 zone of cold margin.
angelica, photograph
Angelica: Colorado growing notesZones 4–9Two Buttes's 191 days clear the ~120 it needs.
lentil, photograph
Growing lentil in ColoradoZones 2–11Two Buttes's 191 days clear the ~70 it needs.
okra, photograph
Colorado okra guideZones 2–12Two Buttes's 191 days clear the ~50 it needs.
potato, photograph
Potato in ColoradoZones 2–11Two Buttes's 6b — 4 zones of cold margin.
iris, photograph
Iris: Colorado growing notesZones 3–10Two Buttes's 6b — 3 zones of cold margin.
sunflower, photograph
Growing sunflower in ColoradoZones 2–11Two Buttes's 191 days clear the ~70 it needs.
lilac, photograph
Colorado lilac guideZones 4–10Two Buttes's 6b — 2 zones of cold margin.
hops, photograph
Hops in ColoradoZones 3–8Two Buttes's 6b — 3 zones of cold margin.
hosta, photograph
Hosta: Colorado growing notesZones 3–8Two Buttes's 6b — 3 zones of cold margin.
French marigold, photograph
Growing french marigold in ColoradoTwo Buttes's 191 days clear the ~50 it needs.
Oregon grape, photograph
Colorado oregon grape guideZones 5–8Two Buttes's 6b — 1 zone of cold margin.
Virginia creeper, photograph
Virginia creeper in ColoradoZones 3–9Two Buttes's 6b — 3 zones of cold margin.
tulip, photograph
Tulip: Colorado growing notesZones 6–8Two Buttes's 6b is its exact cold limit.
American elm, photograph
Growing american elm in ColoradoZones 3–9Two Buttes's 6b — 3 zones of cold margin.
Ethiopian mustard, photograph
Colorado ethiopian mustard guideZones 4–10Two Buttes's 6b — 2 zones of cold margin.
Kentucky bluegrass, botanical illustration
Kentucky bluegrass in ColoradoZones 2–7Two Buttes's 6b — 4 zones of cold margin.
Douglas fir, photograph
Douglas fir: Colorado growing notesZones 4–10Two Buttes's 6b — 2 zones of cold margin.
alfalfa, photograph
Growing alfalfa in ColoradoZones 2–10Two Buttes's 191 days clear the ~100 it needs.
Indian grass, photograph
Colorado indian grass guideZones 4–9Two Buttes's 6b — 2 zones of cold margin.

Is it too late to plant in Two Buttes?

For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — 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 Two Buttes

Closest first, within ~10 miles of Two Buttes. Listing isn't leaking, and distance isn't exposure.

  1. Baca County District IUnderground Storage Tanks · 750 ft
  2. SC02904418DCCNitrate · 3.3 mi
  3. Former Co-op SsUnderground Storage Tanks · 4.3 mi
  4. SC02904515CCDNitrate · 5.2 mi
  5. SC02904433BDBNitrate · 5.6 mi
  6. SC02804501AAANitrate · 5.8 mi
  7. SC03004405DCANitrate · 7.0 mi
  8. 43W-28S-28 BB01 COS-1074Nitrate · 7.0 mi
  9. 28S-45W-19 BBO1 COS-1055Nitrate · 7.7 mi
  10. SC02704330BBB1Nitrate · 9.0 mi

Measured from Two Buttes'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 Two Buttes.

Total Sites

18

within ~10 miles of Two Buttes

Risk Level

Low

Highest-severity

16 nitrate monitoring sites

Severity Distribution

within ~10 miles of Two Buttes

High0Moderate16Low2

Highest-Severity Sites

28S-45W-19 Bbo1 Cos-1055
Nitrate Monitoring · Well
28S-45W-19 Bbo1 Cos-1055
Nitrate Monitoring · Well
43W-28S-28 Bb01 Cos-1074
Nitrate Monitoring · Well
43W-28S-28 Bb01 Cos-1074
Nitrate Monitoring · Well
Sc02804501aaa
Nitrate Monitoring · Well

Know Before You Grow

  • On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
  • Underground tanks leak petroleum as they age — near a former filling station, test the soil.
Free Report

Check your specific parcel in Two Buttes

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 Two Buttes average

Your land is one point inside Two Buttes

Everything above resolves to Two Buttes as a whole — one PHZM band and one 28°F frost record, read across 159 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 Two Buttes Average

Two Buttes Average

  • USDA Zones 6b, averaged across Two Buttes
  • One soil character for all of Two Buttes
  • Frost dates read at Two Buttes's scale: Apr 15 to Oct 23

YOUR Parcel

  • Your exact zone, not Two Buttes's 6b
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your specific parcel in Two Buttes

Pull a site-specific report for your exact address in Two Buttes, Colorado — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your lot that Two Buttes averages can't show:

Your soil pHYour frost-free days — Two Buttes averages 191Your sun & shade

We read public map data around Two Buttes — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources read at your address, not the Two Buttes average

How we know this about Two Buttes

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 Two Buttes’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 Two Buttes

When does frost risk typically end in Two Buttes?

The last hard freeze (28°F) in Two Buttes typically lands around Apr 15, 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 6.

When is the first frost in Two Buttes?

The first hard freeze (28°F) in Two Buttes typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 191 days after the spring freeze cleared.

How long is the growing season in Two Buttes?

Measured between 28°F hard freezes, Two Buttes sees about 191 frost-free days — roughly Apr 15 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 9, about 156 days.

Is the soil safe to grow vegetables in Two Buttes?

The federal record around Two Buttes is light — 18 documented sites across the 9 federal source types we checked, mostly Nitrate entries (16), the nearest Underground Storage Tanks record about 0.1 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 I protect my plants from frost in Two Buttes?

From about Sep 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.

Everything above is measured at Two Buttes's scale — its 6b band and its 191-day season. Your yard writes its own version of Two Buttes'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 Two Buttes’s own scale

6 of the readings below were taken at Two Buttes's own scale — its own ~191-day season between 28°F freezes, the 159 acres it covers and 18 documented sites around it; 4 are borrowed from a wider read, named and linked below.

Measured here

  • Two Buttes's own USDA hardiness band, zones 6bUSDA PHZM 2023
  • Two Buttes's own 28°F hard-freeze dates, about Apr 15 and Oct 23 and the ~191-day span between themNOAA 1991–2020 Climate Normals
  • 18 documented contamination sites on the federal record near Two Buttes, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
  • Two Buttes's boundary and the 159 acres inside itUS Census TIGER/Line 2025
  • Which of 1,086 plants clear zones 6b and a ~191-day seasonGrowable Ground crop-matching engine
  • The ecoregion at Two Buttes's own centroid, the High PlainsUS EPA Level III Ecoregions

Inherited from a wider read

  • Soil character — no town-scale survey exists, so Two Buttes's 159 acres read through its county's SSURGO summaryfrom Baca County
  • Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Baca 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 Baca County

What this page can’t tell you

  • The soil pH, drainage, sun hours, and frost pockets on any one lot among Two Buttes's 159 acreswhy one lot differs from the next
  • Which side of Two Buttes you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 159 acresreading your own microclimate
  • How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Two Buttes-wide figureread your own land
The next step finer is your own address