Conditional — Some Areas
Panama rubber tree (zones 12-12) reaches only part of Hawaii (8b-13a): zone 12 are in range, so where you are in the state decides it.
Panama Rubber Tree in Hawaii — the short answer
Panama Rubber Tree in Hawaii: hardy in zones 12–12, full sun.
- Plant zones
- 12-12
- Hardy to zone 12a: Tropical Plants Database (Useful Tropical Plants) lists 10 °C, converted to zone 12a, checked Oct 2026. Ceiling: our plant database.
- Hawaii zones
- 8b-13a
- USDA PHZM 2023
- Killing freeze
- None on record
- NOAA RCC ACIS 1991-2020
- Shortest county season
- 365 days
- NOAA Regional Climate Centers ACIS station record, 1991-2020, county 28°F killing freeze
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.
Your yard isn't the whole zone.
Hawaii spans zones 8b-13a, 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 panama rubber tree against your parcel's actual hardiness, soil, and sun.
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Hawaii is not one climate
Hawaii’s winter-low ladder runs across 5 counties, from zone 9 in Hawaii County to zone 11.5 in Kalawao County. That is 25°F between the two counties’ average coldest night — the difference between panama rubber tree overwintering in the ground and coming under cover.
The middle half of 5 counties runs 10–11.5 zones, with a median of 10 zones — a 2.5-zone span end to end.
Measured across 5 Hawaii counties. USDA PHZM 2023, per county. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.
Where Panama Rubber Tree Stands in Hawaii
Panama Rubber Tree is rated for zones 12–12 — a cold floor USDA puts at 50 to 60°F. No Hawaii county sits inside it, so in open ground this is a grown-under-cover plant here rather than a bed plant — which is a statement about Hawaii winters, not about panama rubber tree.
Below the zone 12 floor
5 counties
- Hawaii County · zone 9a-13a
- Kauai County · zone 10a-12b
- Maui County · zone 10a-13a
3 of 5 shown
Winter cold is the limit here — the same plant works in a container that comes under cover.
County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. A zone is a 10°F band of average annual extreme minimum temperature, so the floor above is the band the plant's rating denotes, not a single measured kill point. Slope, shelter and cold-air drainage routinely move a site half a zone either way from its county figure — which is the part only your address resolves.
Zone Comparison
Panama Rubber Tree Needs
- USDA Zones: 12-12
- Sun: Full Sun
Hawaii Has
- USDA Zones: 8b-13a
- Hard Freeze (28°F): None on record — year-round season
- Annual Rainfall: 10-400 inches
- Common Soils: Volcanic, Laterite, Coral sand
Plant Zone Range (zones 12-12)
Preferred Soil pH
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Panama Rubber Tree in Hawaii
The frost window
Hawaii has none — the 1991-2020 station record carries no 28°F killing freeze, so there is no last-frost date to plant after and no first-frost date to harvest before (NOAA Regional Climate Centers ACIS station record). The growing season is year-round; what paces planting here is rainfall, heat and elevation, not the calendar.
Establishment timing
As a long-lived plant, panama rubber tree can go in any month here. Aim for the start of your wetter season so it establishes on rainfall rather than on irrigation, and give it a year in the ground before judging it.
Frost tenderness
Panama Rubber Tree is killed by cold below 50°F (FAO ECOCROP), which simply does not bind at low and mid elevation here. It does bind upslope: Hawaii's summit country genuinely freezes, and no station up there carries a long enough daily record for us to date it.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Soil + Drainage Fit
Panama Rubber Tree likes near-neutral soil (pH 4.5-7). That's the common-ground band across Hawaii's volcanic and laterite — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 5 and 6 — worth knowing before you decide whether a Hawaii soil test result is a problem or just a number. Drainage matters: this plant wants well (dry spells). If your Hawaii site is heavier clay or sits in a low spot, a raised bed lifts the roots above wet ground, or work in compost.
Plant pH requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. Hawaii soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
What Else to Consider for Panama Rubber Tree in Hawaii
Zone compatibility tells you about winter cold survival — but Hawaii growers also need to think about:
Extreme rainfall variation — desert on one side, rainforest on the other
Volcanic soil is nutrient-poor in young flows
Invasive species pressure is severe
What to actually do about these — and the constraints that apply to every Hawaii grower, not just panama rubber tree — is covered on the Hawaii growing guide.
Where in Hawaii Panama Rubber Tree Is Zone-Hardy
Panama Rubber Tree is rated for USDA zones 12–12. No single Hawaii county falls inside it: 0 are colder than the plant’s zone 12 floor and 0 are milder than its zone 12 ceiling. A band this narrow straddles the state rather than sitting inside it.
Across those 5 counties Hawaii’s winter-low ladder runs from zone 9a-13a in Hawaii County to zone 11b-12b in Kalawao County — 3.5 USDA zones of spread, which is 35°F between the two counties’ average coldest night of the year. None of that range reaches the band panama rubber tree needs, so here the statewide answer really is the answer.
County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. Panama Rubber Tree’s zone 12–12 band: Hardy to zone 12a: Tropical Plants Database (Useful Tropical Plants) lists 10 °C, converted to zone 12a, checked Oct 2026. Ceiling: our plant database.. A parcel report resolves your address’s own zone and frost dates rather than its county’s.
Hawaii Cooperative Extension
For Hawaii-specific cultivar recommendations, planting calendars, and pest pressure for panama rubber tree, the canonical source is UH Mānoa CTAHR Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Common Questions About Growing Panama Rubber Tree in Hawaii
When can I plant Panama Rubber Tree in Hawaii?
Any month — Hawaii records no 28°F killing freeze in the 1991-2020 station record, so there is no last-frost date to wait for and the growing season is year-round (NOAA Regional Climate Centers ACIS station record). Pace planting by rainfall, heat and elevation instead: the summit country does freeze, and no station up there carries a long enough record to date it.
What hardiness zone is Panama Rubber Tree grown in across Hawaii?
Hawaii spans USDA hardiness zones 8b-13a (USDA ARS PHZM 2023). Panama Rubber Tree carries a range of zones 12-12, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Hawaii site have?
A typical Hawaii site sees ~365 frost-free days per year (derived from NOAA Regional Climate Centers ACIS station record, 1991-2020). Panama Rubber Tree needs 330+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
How should I amend the soil for Panama Rubber Tree in Hawaii?
Panama Rubber Tree prefers pH 4.5-7 and well (dry spells) drainage (FAO ECOCROP). That sits in the common-ground band across Hawaii soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Panama Rubber Tree actually grow on my specific land in Hawaii?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores panama rubber tree against your address's mapped soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Hawaii
State-level data is a sketch. Your Growable Ground report scores panama rubber tree against your land's mapped soil, modelled sun, drainage, and frost data — not zone averages.
Three things about your lot that Hawaii panama rubber tree averages can't show:
We read public map data around Hawaii — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Hawaii panama rubber tree average
Explore More
Growing guides for panama rubber tree
Explore Hawaii county by county
Hawaii carries 5 counties with their own USDA zone — a sample of the growing pages for panama rubber tree there:
Where else panama rubber tree grows
Panama Rubber Tree's zone band crosses state lines — these are the states closest to Hawaii in winter climate where it also has a page, plus the far ends of its range. Each one re-answers the question with that state's own record.
More to grow in Hawaii
Hawaii has a growing page for 789 plants — a rotating sample of the rest of the shelf.
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