Unlikely — Zone Mismatch
New Zealand kauri (zones 9-11) does not overlap with Arkansas's zone range (6b-8b). Growing outdoors is unlikely without significant protection.
One zone short — what would close it
New Zealand Kauri is hardy to zone 9, and the warmest ground in Arkansas is zone 8 — 1 zone short. Planted in open ground it will not survive a Arkansas winter. To grow it here, grow new zealand kauri in a container and move it under cover for the coldest weeks, or give it a greenhouse.
Season extension and overwintering under cover both work at this margin. How to buy the weeks →
Zone math from 9-11 (plant) against 6-8 (Arkansas). Lift modeled by crop_engine Sprint 20B effective_zone_modifier (+2 zones) via api/fast_sections.py Unlock Engine v2.
Your yard isn't the whole zone.
Arkansas spans zones 6b-8b, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score new zealand kauri against your parcel's actual hardiness, soil, and sun.
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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Zone Comparison
New Zealand Kauri Needs
- USDA Zones: 9-11
- Frost-Free Days: 150+
- Sun: Full Sun
- Mature size: 150 ft tall
- Drought tolerance: Low
Arkansas Has
- USDA Zones: 6b-8b
- Last Hard Freeze (28°F): Mar 2 - Mar 20
- First Hard Freeze (28°F): Nov 15 - Nov 23
- Annual Rainfall: 44-56 inches
- Common Soils: Silt loam, Sandy loam, Red clay
Plant Zone Range (zones 9-11)
Preferred Soil pH
Plant data: USDA PLANTS Database / Growable Ground plant catalog. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant New Zealand Kauri in Arkansas
The frost window
Across Arkansas, the last spring hard freeze (28°F) clears between Mar 2 and Mar 20, and the first fall hard freeze lands between Nov 15 and Nov 23 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 240-day window you can count on — up to 266 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.
Winter standing
Arkansas runs as cold as USDA zone 6, and no sourced winter-hardiness floor is on record for new zealand kauri, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether new zealand kauri is a permanent planting or a replant-every-spring crop for you turns on your own zone within Arkansas; check its hardiness range against that before treating it as long-lived ground.
Timing tuned to sub-state frost dates — Carroll County, not the statewide average.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
The zone check says new zealand kauri does not survive a Arkansas winter in the ground. The season figures below measure a different question — whether it could finish a season here at all — and they only bear on Arkansas under protection.
Frost-free days
New Zealand Kauri wants 150+ frost-free days; a typical Arkansas site sees ~254 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves comfortable headroom for succession planting.
Chill hours
New Zealand Kauri has no winter-chill requirement — its listed minimum is 0 hours (USDA PLANTS Database). Arkansas typically banks ~1780 chill hours per winter (from PRISM 1991-2020 climate normals), so chill is not a constraint on this plant here — and not evidence in its favour either. Winter survival and season length are what decide it.
GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.
Soil + Drainage Fit
New Zealand Kauri likes near-neutral soil (pH 4.5-6.5). That's the common-ground band across Arkansas's silt loam and sandy loam — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 4.8 and 5.5 — worth knowing before you decide whether a Arkansas soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your Arkansas site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Your land, not the state average
SSURGO maps about 33.9% of Arkansas as poorly or somewhat-poorly drained, and the class flips parcel to parcel. New Zealand Kauri has low drought tolerance, so it is the fast-draining end that will cost you — your soil map unit, not the state average, is the real answer.
Check your parcel → Source: USDA NRCS SSURGO.
Plant pH and drainage requirements from USDA PLANTS Database. Arkansas soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
New Zealand Kauri in Arkansas — Quick Answer
- Verdict: Unlikely — Zone Mismatch
- Plant Zones: 9-11 (USDA PLANTS Database)
- State Zones: 6b-8b (USDA ARS PHZM 2023)
- Growing Season: 28°F hard freezes about Mar 2 - Mar 20 to Nov 15 - Nov 23 (NOAA Regional Climate Centers ACIS, 1991-2020)
What Else to Consider for New Zealand Kauri in Arkansas
Zone compatibility tells you about winter cold survival — but Arkansas growers also need to think about:
Hot, humid summers drive fungal and bacterial diseases
Heavy clay soils in parts of the Ozarks
Severe spring storms and hail risk
Growing new zealand kauri here specifically
New Zealand Kauri roots run deep and prefer pH 4.5–6.5, but drainage comes first here: SSURGO maps about 33.9% of Arkansas as poorly or somewhat-poorly drained, and wet ground rots its crown before pH ever matters.
Plant new zealand kauri on a raised, gravel-amended berm so water drains fast and the crown stays dry. How to handle it →
What to actually do about these — and the constraints that apply to every Arkansas grower, not just new zealand kauri — is covered on the Arkansas growing guide.
Timing shifts within Arkansas
Arkansas isn't one climate. In Carroll County, the last hard freeze (28°F) holds until about Mar 26 — roughly 16 days later than the recorded state median — so plant new zealand kauri to your county's window, not the statewide date.
New Zealand Kauri needs about 150 days of frost-free season to complete its cycle. Even Benton County — Arkansas’s shortest season at 226 frost-free days — clears that by 76 days, so season length isn’t the constraint anywhere in Arkansas. What varies is your own parcel.
County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). New Zealand Kauri's 150-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.
Arkansas Cooperative Extension
For Arkansas-specific cultivar recommendations, planting calendars, and pest pressure for new zealand kauri, the canonical source is University of Arkansas Cooperative Extension Service. Their fact sheets carry the local trial data we can't generalize across 50 states.
Common Questions About Growing New Zealand Kauri in Arkansas
When can I plant New Zealand Kauri in Arkansas?
Arkansas's last spring hard freeze (28°F) clears between Mar 2 and Mar 20, and the first fall hard freeze lands between Nov 15 and Nov 23 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for New Zealand Kauri, so this page does not state whether it overwinters in Arkansas and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.
What hardiness zone is New Zealand Kauri grown in across Arkansas?
Arkansas spans USDA hardiness zones 6b-8b (USDA ARS PHZM 2023). New Zealand Kauri carries a range of zones 9-11, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Arkansas site have?
A typical Arkansas site sees ~254 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). New Zealand Kauri needs 150+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date. In cooler counties like Carroll, the freeze-free season runs shorter than the state average, so verify your own county's window.
How should I amend the soil for New Zealand Kauri in Arkansas?
New Zealand Kauri prefers pH 4.5-6.5 and well (dry spells) drainage (FAO ECOCROP). That sits in the common-ground band across Arkansas soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will New Zealand Kauri actually grow on my specific land in Arkansas?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores new zealand kauri against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Arkansas
State-level data is a sketch. Your Growable Ground report scores new zealand kauri against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your lot that Arkansas new zealand kauri averages can't show:
We read public map data around Arkansas — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Arkansas new zealand kauri average
Explore More
Growing guides for new zealand kauri
Analysis by the Growable Ground research team, grounded in USDA PLANTS, USDA NRCS SSURGO, NOAA Climate Normals (1991-2020), and named Cooperative Extension sources. How we know →
Cite this dataset
Kirchick, M. (2026). Growable Ground Plant Database [Data set]. Zenodo. https://doi.org/10.5281/zenodo.21435643
Licensed CC BY-NC 4.0. DOI 10.5281/zenodo.21435643
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