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Place guide

Planting zones in Lexington-Fayette, KY

This metro spans USDA zones 6b to 7a, so there is no single zone for Lexington-Fayette, KY and anyone who gives you one is rounding. 70% of its ZIP codes are zone 7a; the rest are not.

USDA zones 6b–7a 2 zones across 27 ZIP codes
ZIP codes 27 27 have a NOAA station within range
Weather stations 8 NOAA 1991–2020 normals, across 1,470 sq mi

Your ZIP code

Get the exact answer for your address

Everything above describes Lexington-Fayette, KY as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact β€” enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.

Works for all 40,502 US ZIP codes. Freeze dates need a NOAA station within 100 km; where there is none, the page says so rather than estimating one.

The growing season in Lexington-Fayette, KY is closing

Nothing in the 32-crop table still has time to mature here. The first fall freeze normally arrives October 18 – November 1 across the 8 NOAA stations serving this metro area .

Your next season already has a date

The first job of it is πŸ§… Green Onions, start indoors, around February 10 – February 27 β€” counted back from a last spring freeze of April 7 – April 24 here.

Every spring date for your ZIP β†’

These are ranges across the whole metro area. The ZIP lookup above gives the dates from your own nearest station instead.

Growing season across Lexington-Fayette, KY A one-year bar. Every one of the 8 NOAA stations serving this metro area counts April 24 to October 18 as growing season, 177 days. At least one counts April 7 to November 1, 208 days. The same figures are written out below this chart. JFMAMJJASONDApril 24October 18

All 8 stations agreeAt least one station

Every one of the 8 NOAA stations serving this metro area counts April 24 – October 18 as growing season (177 days). Widening to any single station gives April 7 – November 1 (208 days).

That is a 31-day difference inside one metro area β€” which is why this page gives ranges rather than a single planting date. The ZIP lookup above resolves it to one station.

Which zone you are in depends where you are

Lexington-Fayette, KY covers 2 hardiness zones. A guide that gives the metro one zone has picked whichever is largest and rounded everyone else into it β€” which is fine for the 70% in zone 7a and wrong for the other 30%. Here is the actual split.

Zone ZIP codes Share  
7a 19 70%
6b 8 30%

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

Last spring freeze April 7 – April 24
First fall freeze October 18 – November 1

Those are the earliest and latest medians among the 8 stations serving this metro β€” not an average, and not one station standing in for the rest. Half of years freeze later than a station's own median.

The spread is the point. Even in a metro that is one hardiness zone throughout, its stations disagree about the last spring freeze. Hardiness zone and frost date measure different things β€” a zone is the average annual coldest night, a freeze date is when the season turns β€” and a place can be uniform in one and varied in the other. Use the tools below with your own ZIP rather than the ends of this range.

Your growing season

NOAA publishes a growing-season length for each station, and across the 8 stations serving Lexington-Fayette, KY it runs 175–206 days . That figure is published, not computed from the two freeze dates β€” subtracting one from the other gives the wrong answer wherever a season crosses New Year. Mean summer high (June–August) runs 83–87 Β°F , below the 90 Β°F point where cool-season crops reliably bolt. Summer rain over the same months runs 12.2–14.0" across those 7 stations, against the rough inch a week β€” about 13 inches over the same 92 days β€” that a vegetable garden is usually reckoned to want. The middle station covers about 96% of it, so expect to make up the rest. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 86 Β°F summer afternoon drying the soil faster than a cool one.

When to start seeds in Lexington-Fayette, KY

Every spring job for 63 crop dates, counted from this metro's own last spring freeze. Each is a range across all 8 stations β€” the earliest and latest that job falls anywhere in the metro β€” because no one station speaks for the whole area.

Crop Job When Offset
Green Onions Start indoors February 10 – February 27 8 weeks before
Peppers Start indoors February 10 – February 27 8 weeks before
Broccoli Start indoors February 24 – March 13 6 weeks before
Cabbage Start indoors February 24 – March 13 6 weeks before
Collards Start indoors February 24 – March 13 6 weeks before
Kale Start indoors February 24 – March 13 6 weeks before
Leaf Lettuce Start indoors February 24 – March 13 6 weeks before
Peas Direct sow February 24 – March 13 6 weeks before
Spinach Direct sow February 24 – March 13 6 weeks before
Sweet Potato Start indoors February 24 – March 13 6 weeks before
Tomatoes Start indoors February 24 – March 13 6 weeks before
Bok Choy Start indoors March 3 – March 20 5 weeks before
Kohlrabi Start indoors March 3 – March 20 5 weeks before
Swiss Chard Start indoors March 3 – March 20 5 weeks before
Arugula Direct sow March 10 – March 27 4 weeks before
Baby Salad Greens Direct sow March 10 – March 27 4 weeks before
Beets Direct sow March 10 – March 27 4 weeks before
Green Onions Direct sow March 10 – March 27 4 weeks before
Mustard Greens Direct sow March 10 – March 27 4 weeks before
Okra Start indoors March 10 – March 27 4 weeks before
Radishes Direct sow March 10 – March 27 4 weeks before
Turnips Direct sow March 10 – March 27 4 weeks before
Cabbage Set out March 17 – April 3 3 weeks before
Carrots Direct sow March 17 – April 3 3 weeks before
Collards Direct sow March 17 – April 3 3 weeks before
Collards Set out March 17 – April 3 3 weeks before
Cucumbers Start indoors March 17 – April 3 3 weeks before
Green Onions Set out March 17 – April 3 3 weeks before
Kale Direct sow March 17 – April 3 3 weeks before
Kale Set out March 17 – April 3 3 weeks before
Kohlrabi Direct sow March 17 – April 3 3 weeks before
Kohlrabi Set out March 17 – April 3 3 weeks before
Leaf Lettuce Direct sow March 17 – April 3 3 weeks before
Pumpkins Start indoors March 17 – April 3 3 weeks before
Summer Squash Start indoors March 17 – April 3 3 weeks before
Winter Squash Start indoors March 17 – April 3 3 weeks before
Zucchini Start indoors March 17 – April 3 3 weeks before
Bok Choy Direct sow March 24 – April 10 2 weeks before
Bok Choy Set out March 24 – April 10 2 weeks before
Broccoli Set out March 24 – April 10 2 weeks before
Cilantro Direct sow March 24 – April 10 2 weeks before
Leaf Lettuce Set out March 24 – April 10 2 weeks before
Swiss Chard Direct sow March 24 – April 10 2 weeks before
Swiss Chard Set out March 24 – April 10 2 weeks before
Dill Direct sow March 31 – April 17 1 week before
Bush Beans Direct sow April 14 – May 1 1 week after
Cucumbers Set out April 14 – May 1 1 week after
Pumpkins Direct sow April 14 – May 1 1 week after
Pumpkins Set out April 14 – May 1 1 week after
Summer Squash Direct sow April 14 – May 1 1 week after
Summer Squash Set out April 14 – May 1 1 week after
Sweet Corn Direct sow April 14 – May 1 1 week after
Tomatoes Set out April 14 – May 1 1 week after
Winter Squash Direct sow April 14 – May 1 1 week after
Winter Squash Set out April 14 – May 1 1 week after
Zucchini Direct sow April 14 – May 1 1 week after
Zucchini Set out April 14 – May 1 1 week after
Cucumbers Direct sow April 21 – May 8 2 weeks after
Okra Direct sow April 21 – May 8 2 weeks after
Okra Set out April 21 – May 8 2 weeks after
Peppers Set out April 21 – May 8 2 weeks after
Southern Peas Direct sow April 21 – May 8 2 weeks after
Sweet Potato Set out April 21 – May 8 2 weeks after

The week offsets are conventional extension guidance and vary by variety; the freeze dates they are counted from are measured. For a single date rather than a range, run when do I start my seeds? with your own ZIP code.

What survives the winter changes across Lexington-Fayette, KY

Of 74 perennial fruits, nuts, berries, vegetables and herbs, 58 come through the winter in zone 7a and only 51 in zone 6b. That is a different garden at each end of the same metro.

Zone ZIPs Survive Fail for being too warm
6b 8 51 of 74 0
7a 19 58 of 74 1

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 Β°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.

How certain the freeze dates are in Lexington-Fayette, KY Two rows. Each runs from the cautious date, which shortens the growing season, to the optimistic one. The median dates sit between them. Every figure is repeated in the text below this chart. JFMAMJJASONDLast spring freezeFirst fall freeze

Cautious β€” shortens the seasonMedian across stationsOptimistic

Last spring freeze
Plan to May 12 to be careful. Median April 7 – April 24 across 8 stations; March 25 is the optimistic end.
First fall freeze
Plan to October 6 to be careful. Median October 18 – November 1 across 8 stations; November 11 is the optimistic end.

NOAA publishes these as probabilities, not averages β€” the middle figure is a median, so half of years fall either side of it. The cautious end is the 10% tail: in roughly nine years in ten the freeze falls on the safe side of it.

The 8 stations behind these numbers

The 8 NOAA stations serving Lexington-Fayette, KY A relative sketch of where the stations sit, about 70 kilometres north to south. Each is named with its NOAA identifier in the station list on this page, which carries the same information as text. CRESSY, KY US (USC00151895)CYNTHIANA, KY US (USC00151998)DIX DAM, KY US (USC00152214)EASTERN KENTUCKY UNIV, KY US (USC00152409)FRANKFORT CAPITAL CITY AP, KY US (USW00053841)LEXINGTON BLUEGRASS AP, KY US (USW00093820)MT STERLING, KY US (USC00155640)VERSAILLES 3 NNW, KY US (USW00063838) ~70 km north to south

All 8 NOAA stations whose normals this page quotes, spanning about 70 km north to south. Every one is named with its identifier in the station list below β€” this page does not single one out, because no one station speaks for a whole metro area.

A relative sketch, not a map with a projection: longitude is adjusted for latitude so the shape is not stretched, and there is no basemap. For the one station nearest a specific address, with its real distance, use the ZIP lookup above.

Every figure above comes from these, and each is named so you can check it. Which station serves a given ZIP code, and how far away it is, varies across the metro β€” the table below gives it per ZIP code rather than this page averaging it.

Station NOAA ID Last spring freeze First fall freeze Season
Cressy, KY USC00151895 April 20 October 19 182 days
Cynthiana, KY USC00151998 April 18 October 23 188 days
Dix Dam, KY USC00152214 April 7 November 1 206 days
Eastern Kentucky Univ, KY USC00152409 April 15 October 22 190 days
Frankfort Capital City AP, KY USW00053841 April 15 October 24 192 days
Lexington Bluegrass AP, KY USW00093820 April 13 October 28 196 days
Mt Sterling, KY USC00155640 April 24 October 18 175 days
Versailles 3 Nnw, KY USW00063838 April 12 October 28 198 days

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

Every ZIP code in Lexington-Fayette, KY

Zones are published per ZIP code, not per metro area, so this is the exact answer rather than the metro area's average. The station column is the nearest one to that ZIP code's centroid and how far away it is β€” the same figure the tools use, shown here so you can see which ZIP codes are well covered and which are reaching.

ZIP code USDA zone Nearest NOAA station Distance
40324 6b Lexington Bluegrass AP, KY 23.3 km
40339 7a Lexington Bluegrass AP, KY 11.4 km
40347 6b Versailles 3 Nnw, KY 7.3 km
40348 6b Cynthiana, KY 16.0 km
40356 7a Dix Dam, KY 15.9 km
40357 6b Mt Sterling, KY 18.1 km
40361 6b Cynthiana, KY 21.0 km
40370 6b Cynthiana, KY 19.9 km
40379 6b Frankfort Capital City AP, KY 23.1 km
40383 7a Versailles 3 Nnw, KY 9.8 km
40390 7a Dix Dam, KY 8.5 km
40391 6b Cressy, KY 18.4 km
40502 7a Lexington Bluegrass AP, KY 11.2 km
40503 7a Lexington Bluegrass AP, KY 7.4 km
40504 7a Lexington Bluegrass AP, KY 5.4 km
40505 7a Lexington Bluegrass AP, KY 13.2 km
40507 7a Lexington Bluegrass AP, KY 9.6 km
40508 7a Lexington Bluegrass AP, KY 8.6 km
40509 7a Lexington Bluegrass AP, KY 20.6 km
40510 7a Lexington Bluegrass AP, KY 3.9 km
40511 7a Lexington Bluegrass AP, KY 16.8 km
40513 7a Lexington Bluegrass AP, KY 2.7 km
40514 7a Lexington Bluegrass AP, KY 7.3 km
40515 7a Eastern Kentucky Univ, KY 19.7 km
40516 7a Lexington Bluegrass AP, KY 21.4 km
40517 7a Lexington Bluegrass AP, KY 12.1 km
40536 7a Lexington Bluegrass AP, KY 8.7 km

ZIP-code positions are area centroids, so a large rural ZIP code's listed distance is measured from the middle of its area rather than from any particular address in it.

Your own ZIP

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.

Other places to compare

These metros span exactly the same zones β€” 6b–7a β€” so the same plants are in and out of range across them. The freeze dates and the spring calendar are their own.

Gardening in Kentucky β€” zones 6b– 7b covers the whole state: how its 775 ZIP codes divide between 3 hardiness zones, and the freeze dates across every NOAA station in it.

Other metro areas in KY:

All 388 metro areas, by state

Gear

If you want to act on this

Each link opens an Amazon search rather than a product we picked. We have not tested these and do not rank them β€” the search is the honest version, and you choose.

As an Amazon Associate we earn from qualifying purchases. That costs you nothing extra, and it buys no influence over anything on this site: the dates come from NOAA normals and the zones from the USDA, and no product affects either.

Sources

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.

All metro areas