Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 30, 2026

Planting zone for Miami Beach, FL

Miami Beach, FL is in USDA zone 11a across its 7 ZIP codes.

Miami Beach on the zone map

Outlined: its 5 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone11a40 to 45 °F

ZIP codes7

Last frostrare

First frostrare

Growing seasonall year

11a 7 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Perrine 4w, FL, elevation 10 ft) the median growing season is 365 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 33140 came on Jan 10 — about the same time as the 1991–2020 average (Jan 10).

average
Jan 102026
Jan 10

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 11a in Florida

518 plants native to the lower 48 states, recorded in Florida, and rated by the USDA to survive 40 °F or colder — the bottom of zone 11a. Each links to its USDA PLANTS profile.

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Miami Beach, FL.

Soil in Miami Beach, FL

The soil mapped at the center of ZIP 33140 is Sunny Isles — fine sand, poorly drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureFine sanddrains and warms fast; dries out and needs more feeding

pH4.8strongly acidic; most vegetables like 6.0–7.0

DrainagePoorly drainedconsider raised beds

Organic matter1.5%low — add compost

Hydrologic groupA/Ddrains fast once dried out; wet otherwise

Farmland classNot prime farmlandUSDA classification

Map unit: Urban land, 0 to 2 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 33140; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Miami Beach, FL

Summer high88 °Faverage high, July

Winter low61 °Faverage low, January

Hot days30days a year at 90 °F or more

Freezing nights0nights a year at 32 °F or less

Growing degree days9,525base 50 °F — the season’s usable heat

Longest day13 h 45 mindaylight on June 21

Shortest day10 h 31 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation57.2 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Miami Beach, FL (within 1 mile); precipitation: Miami Beach, FL (within 1 mile). Daylight is calculated from latitude.