Metro areas

Gardening in Orlando-Kissimmee-Sanford, FL

This metro spans USDA zones 9b to 10a, so there is no single zone for Orlando-Kissimmee-Sanford, FL and anyone who gives you one is rounding. 63% of its ZIP codes are zone 10a; the rest are not.

USDA zones 9b–10a 2 zones across 96 ZIP codes
ZIP codes 96 96 have a NOAA station within range
Weather stations 15 NOAA 1991–2020 normals, across 3,492 sq mi

Which zone you are in depends where you are

Orlando-Kissimmee-Sanford, FL covers 2 hardiness zones. A guide that gives the metro one zone has picked whichever is largest and rounded everyone else into it — which is fine for the 63% in zone 10a and wrong for the other 37%. Here is the actual split.

Zone ZIP codes Share  
10a 60 63%
9b 36 38%

Zones are published per ZIP code, so yours is exact even though the metro's is not. The hardiness tool will tell you which one you are in.

Your freeze dates

No freeze range is shown for Orlando-Kissimmee-Sanford, FL, because the freeze window here crosses New Year, so an earliest-to-latest range would be arithmetic on dates that do not sit in order. The tools below still answer for individual ZIP codes here, and will say what applies.

Your growing season

NOAA publishes a growing-season length for each station, and across the 15 stations serving Orlando-Kissimmee-Sanford, FL it runs 281–365 days . That figure is published, not computed from the two freeze dates — subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 89–93 °F , at or above the 90 °F point where cool-season crops bolt and tomato and pepper pollen fails — so midsummer sowings of lettuce and its relatives are worth holding here.

What survives the winter changes across Orlando-Kissimmee-Sanford, FL

Of 74 perennial fruits, nuts, berries, vegetables and herbs, 40 come through the winter in zone 9b and only 25 in zone 10a. That is a different garden at each end of the same metro.

Zone ZIPs Survive Fail for being too warm
9b 36 40 of 74 32
10a 60 25 of 74 49

The last column is the counterintuitive one, and it is why the totals do not simply rise as the winters get milder. Most temperate fruit needs a documented number of hours below about 45 °F to break dormancy and set a crop, so an apple fails in a winter that is too warm; currants and rhubarb cook in the summer heat that comes with it. See the full list with reasons.

The 15 stations behind these numbers

Every figure above comes from these, and each is named so you can check it. Distances vary by ZIP code, so the tools report yours rather than this page guessing.

Station NOAA ID Last spring freeze First fall freeze Season
Bushnell 1 E, FL USC00081163 March 2 December 5 281 days
Clermont 9 S, FL USC00081641 January 29 January 11 349 days
Deland 1 Sse, FL USC00082229 February 17 December 30 310 days
Kenansville, FL USC00084500 January 26 January 10 354 days
Kissimmee 2, FL USC00084625 January 28 January 6 342 days
Leesburg Muni AP, FL USW00012819 January 26 January 9 346 days
Lisbon, FL USC00085076 February 2 January 3 327 days
Mt Plymouth 1Ssw, FL USC00087228 February 24 December 29 301 days
Orlando Executive AP, FL USW00012841 January 17 January 13 365 days
Orlando INTL AP, FL USW00012815 January 25 January 10 355 days
Orlando Sanford AP, FL USW00012854 January 24 January 9 352 days
Orlando W, FL USC00086634 January 28 January 9 343 days
Sanford, FL USC00087982 January 26 January 12 359 days
Scottsmoor 2.5 Ssw, FL USC00088051 February 10 January 8 327 days
Titusville, FL USC00088942 January 25 January 13 362 days

These are medians, not averages — NOAA publishes freeze dates as a probability distribution, and half of years freeze later than the date shown.

Work out your own dates

Each of these takes a ZIP code and answers for that ZIP alone, citing the station it used and how far away it is. There is a ZIP box in the header of every page.

Where these numbers come from

The hardiness zone is the USDA 2023 Plant Hardiness Zone Map, published per ZIP code by PRISM at Oregon State. The freeze dates are NOAA's 1991–2020 Climate Normals, read from every station whose normals cover a ZIP code in this metro. Nothing here is estimated, and no station stands in for another.

This page names no single station on purpose. Picking one to represent a metro sounds reasonable and is not: the station serving the most ZIP codes is an artifact of where ZIP centroids happen to fall, and it selects a lock on the Monongahela for Pittsburgh and a far southern suburb for Chicago. A range across every station is true; a single cited date for a whole metro is not.

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