stiff goldenrod (Solidago rigida), photographi

Can I Grow Stiff Goldenrod in Hawaii?

USDA Zones 8b-13a · Plant zone range 3-9

Conditional — Some Areas

stiff goldenrod (zones 3-9) reaches only part of Hawaii (8b-13a): zones 8-9 are in range, so where you are in the state decides it.

Stiff Goldenrod in Hawaii — the short answer

Stiff Goldenrod in Hawaii: hardy in zones 3–9, full sun, against a state median of ~365 frost-free days.

Plant zones
3-9
Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
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.

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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 stiff goldenrod against your parcel's actual hardiness, soil, and sun.

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Where Stiff Goldenrod Stands in Hawaii

Stiff Goldenrod is rated for zones 39 — a cold floor USDA puts at -40 to -30°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 stiff goldenrod.

Above the zone 9 ceiling

5 counties

3 of 5 shown

Too little winter chill rather than too much cold — a low-chill selection is what changes it.

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

Stiff Goldenrod Needs

  • USDA Zones: 3-9
  • Sun: Full Sun
  • Mature size: 5 ft tall
  • Picking window: ~45 days of harvest
  • Drought tolerance: High

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 3-9)

3a
9b
3a (Cold)13b (Hot)

Preferred Soil pH

3.5 (Acidic)7.0 (Neutral)9.0 (Alkaline)
Highlighted range: pH 5.57.5

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 Stiff Goldenrod 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, stiff goldenrod 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 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

Stiff Goldenrod likes near-neutral soil (pH 5.5-7.5). That's the common-ground band across Hawaii's volcanic and laterite — a soil test confirms it for your site. Drainage matters: this plant wants well (dry spells). If your Hawaii site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.

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 Stiff Goldenrod 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 stiff goldenrod — is covered on the Hawaii growing guide.

Where in Hawaii Stiff Goldenrod Is Zone-Hardy

Stiff Goldenrod is rated for USDA zones 39. Every Hawaii county sits above it. Even Hawaii County, the state’s coldest at zone 10a-11b, is milder than the plant’s zone 9 ceiling — the constraint here is winter chill it will not get, not cold it cannot take.

Across those 5 counties Hawaii’s winter-low ladder runs from zone 10a-11b in Hawaii County to zone 10a-11b in Maui County 1.5 USDA zones of spread, which is 15°F between the two counties’ average coldest night of the year. None of that range reaches the band stiff goldenrod needs, so here the statewide answer really is the answer.

County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. Stiff Goldenrod’s zone 39 band: USDA PLANTS / Growable Ground plant database. A parcel report resolves your address’s own zone and frost dates rather than its county’s.

Pollinator + Wildlife Value

Stiff Goldenrod draws honeybees, native bees, and butterflies (high value, Growable Ground Plant Database). Planting it near vegetable beds can lift fruit set on neighboring crops. Stiff Goldenrod's flowers are not fenced in by a freeze date here: the 1991-2020 record resolves no 28°F killing frost anywhere in Hawaii, so what limits bloom is the plant's own cycle rather than the calendar.

Hawaii Cooperative Extension

For Hawaii-specific cultivar recommendations, planting calendars, and pest pressure for stiff goldenrod, the canonical source is UH Mānoa CTAHR Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.

Is Stiff Goldenrod native to Hawaii?

Stiff Goldenrod is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Hawaii. It can still earn a place in a Hawaii garden — the zone comparison above tells you whether it will thrive.

Looking for plants that belong here? The Hawaii growing guide lists USDA-documented natives for the state.

Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.

Common Questions About Growing Stiff Goldenrod in Hawaii

When can I plant Stiff Goldenrod 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 Stiff Goldenrod grown in across Hawaii?

Hawaii spans USDA hardiness zones 8b-13a (USDA ARS PHZM 2023). Stiff Goldenrod carries a range of zones 3-9, 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). Stiff Goldenrod should be matched against that window, so check whether your local microclimate runs above or below the state average before settling on a planting date.

Is Stiff Goldenrod native to Hawaii?

Stiff Goldenrod is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Hawaii. It can still earn a place in a Hawaii garden — the zone comparison above tells you whether it will thrive.

How should I amend the soil for Stiff Goldenrod in Hawaii?

Stiff Goldenrod prefers pH 5.5-7.5 and well (dry spells) drainage (Growable Ground Plant Database). 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 Stiff Goldenrod actually grow on my specific land in Hawaii?

State-level zone + climate data is a sketch. A Growable Ground parcel report scores stiff goldenrod against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.

Free Report

Check your specific parcel in Hawaii

State-level data is a sketch. Your Growable Ground report scores stiff goldenrod against your parcel's exact soil, sun, drainage, and frost data — not zone averages.

Three things about your lot that Hawaii stiff goldenrod averages can't show:

Your soil pHYour frost-free days — Hawaii averages 365Your sun & shade

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 stiff goldenrod average

Explore More

Explore Hawaii county by county

Hawaii carries 5 counties with their own USDA zone — a sample of the growing pages for stiff goldenrod there:

Where else stiff goldenrod grows

Stiff Goldenrod'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 795 plants — a rotating sample of the rest of the shelf.

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