Royal Palm Beach, Florida, sits in USDA hardiness zone 10b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Expect artichoke, meyer lemon, california poppy, and cabbage to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Royal Palm Beach, 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 Royal Palm Beach 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 Royal Palm Beach — soil, climate, flood, and parcel records. How we handle your address.
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Royal Palm Beach — the short answer
Royal Palm Beach, Florida: USDA zone 10b, no 28°F killing freeze on record — the season is year-round, across 7K acres of town.
- USDA zone
- 10b
- USDA PHZM 2023
- Killing freeze
- None on record
- NOAA RCC ACIS 1991–2020, this town’s own record
- Town area
- 7K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. The year-round finding is measured — a 30-year record with no 28°F killing freeze in it — never inferred from missing dates.
Hardiness Zone Range
Zone 10b is Royal Palm Beach's average, not your lot's — a low corner or a tree line moves it. Against Royal Palm Beach's no killing freeze on record, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Royal Palm Beach
Each reading below is measured for Royal Palm Beach itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Winter hardiness
MeasuredRoyal Palm Beach sits in USDA hardiness zone 10b.
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 Royal Palm Beach is in
Royal Palm Beach sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Royal Palm Beach's own centroid, and it is not what its county reads: Palm Beach County is mostly Southern Florida Coastal Plain. The wider page above you is answering a different question about different ground.
What Grows in Royal Palm Beach
Every plant below cleared Royal Palm Beach's own zone 10b. Each card opens that plant's Florida profile. How we score.
What's on the federal record near Royal Palm Beach
Closest first, within ~10 miles of Royal Palm Beach. Listing isn't leaking, and distance isn't exposure.
- ROYAL PALM BEACH COUNTRY CLUBUnderground Storage Tanks · 1900 ft
- PALM BEACH CO-FIRE RESCUE #28Underground Storage Tanks · 1900 ft
- PALM BEACH COUNTY CRESTWOOD MIDDLE SCHOOLBrownfields · 2600 ft
- SHELL STATION (CLOSED)Underground Storage Tanks · 0.5 mi
- CVS PHARMACY #3418Brownfields · 0.5 mi
- CHEVRON-ROYAL PALMUnderground Storage Tanks · 0.6 mi
- 7-ELEVEN STORE #37574Underground Storage Tanks · 0.6 mi
- WINN-DIXIE #212Brownfields · 0.6 mi
- CYPRESS TRAILS ELEMENTARY SCHOOLBrownfields · 0.6 mi
- EXXON-ROYAL PALMUnderground Storage Tanks · 0.6 mi
- PUBLIX SUPER MARKET #1851Brownfields · 0.7 mi
- WALGREENS STORE #1938Brownfields · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Royal Palm Beach'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 Royal Palm Beach.
Total Sites
1,435
within ~10 miles of Royal Palm Beach
Risk Level
Elevated
Highest-severity
4 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Royal Palm Beach
Severity Distribution
within ~10 miles of Royal Palm Beach
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 Royal Palm Beach
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 Royal Palm Beach average
Your land is one point inside Royal Palm Beach
Everything above resolves to Royal Palm Beach as a whole — one PHZM band and one 28°F frost record, read across 7K 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 Royal Palm Beach Average
Royal Palm Beach Average
- ●USDA Zones 10b, averaged across Royal Palm Beach
- ●One soil character for all of Royal Palm Beach
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not Royal Palm Beach's 10b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Royal Palm Beach
Pull a site-specific report for your exact address in Royal Palm Beach, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Royal Palm Beach averages can't show:
We read public map data around Royal Palm Beach — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Royal Palm Beach average
How we know this about Royal Palm Beach
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, with the labelled statewide window where none resolves; 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 Royal Palm Beach
Is it too late to plant in Royal Palm Beach?
No — Royal Palm Beach has no 28°F killing freeze in the 30-year station record, so the growing season is year-round and there is no last-frost date to wait for. Planting is paced by rainfall, heat and daylength instead of by frost: start heat-lovers any month, and time cool-season crops (lettuce, brassicas, peas) for the cooler, wetter half of the year or for higher ground. Succession sowing every few weeks works all year, so the limit is what you can keep watered and harvested, not the calendar.
When does frost risk typically end in Royal Palm Beach?
It doesn't — Royal Palm Beach records no 28°F killing freeze at all across the 1991–2020 station record, so there is no spring frost date to plant after. Cold still matters with elevation: the higher you garden, the cooler the nights, and a few tropical crops sulk below about 60°F even where they never freeze.
How long is the growing season in Royal Palm Beach?
Year-round — the 1991–2020 station record for Royal Palm Beach contains no 28°F killing freeze, so there is no season to measure between freezes. What paces planting instead is heat, rainfall and daylength: the hottest, wettest stretch is the hard part for cool-season crops, not winter. Elevation is the one real exception — the higher you garden, the colder the nights get.
Is the soil safe to grow vegetables in Royal Palm Beach?
The federal record around Royal Palm Beach is a meaningful one — 1,435 documented sites, mostly Underground Storage Tanks entries (623), the nearest Underground Storage Tanks record about 0.4 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.
Everything above is measured at Royal Palm Beach's scale — its 10b band and its no killing freeze on record. Your yard writes its own version of Royal Palm Beach'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 Royal Palm Beach’s own scale
6 of the readings below were taken at Royal Palm Beach's own scale — the 7,279 acres it covers and 1,435 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Royal Palm Beach's own USDA hardiness band, zones 10bUSDA PHZM 2023
- No 28°F killing freeze in the 30-year station record covering Royal Palm Beach — a year-round growing seasonNOAA Regional Climate Centers ACIS, 1991-2020
- 1,435 documented contamination sites on the federal record near Royal Palm Beach, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Royal Palm Beach's boundary and the 7,279 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear Royal Palm Beach's hardiness zoneGrowable Ground crop-matching engine
- Royal Palm Beach sits in the Southern Coastal Plain — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Royal Palm Beach's 7,279 acres read through its county's SSURGO summaryfrom Palm Beach County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Palm Beach County
- The growing challenges every Florida grower plans around — written at state scale, so they stay on the state guidefrom Florida
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Palm Beach County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Royal Palm Beach's 7,279 acreswhy one lot differs from the next →
- Which side of Royal Palm Beach you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 7,279 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Royal Palm Beach-wide figureread your own land →