Place guide
Planting zones in Spartanburg, SC
Every ZIP code in this metro is USDA zone 8a. That is unusual — most metros span several zones — and it means the one number people usually look up is the same wherever you are here.
Your ZIP code
Get the exact answer for your address
Everything above describes Spartanburg, SC as a whole. Hardiness zones and freeze dates are published per ZIP code, so yours is exact — enter it and this page will tell you your zone, which NOAA station it comes from and how far away that station is.
Spartanburg, SC does not have one planting answer
Its own weather stations disagree about 12 of the 32 crops in this table right now, so any single list would be wrong for part of the metro area. That is not a gap in the data — it is what the data says.
- Shortest season
- 195 days
CHESNEE 7 WSW, SC US (USC00381625) - Longest season
- 231 days
TRYON, NC US (USC00318744)
36 days of growing season separate those two stations, and both serve ZIP codes in Spartanburg, SC. The ZIP lookup above answers for one address instead of averaging a place that has no average.
Why the hardiness zone does not settle this
A USDA zone is a winter-minimum statistic. It was never a growing-season one, and it does not behave like one: within a single zone the growing season runs a median 54 days wider at the 10th–90th percentile, and annual growing degree days vary by 2.02×.
The zones also overlap rather than stack — 30% of zone 6b freezes before the median zone 6a station. The zone tells you what survives your winter; the station tells you what finishes before your autumn.
All 8 stations agreeAt least one station
Every one of the 8 NOAA stations serving this metro area counts April 13 – October 26 as growing season (196 days). Widening to any single station gives March 27 – November 12 (230 days).
That is a 34-day difference inside one metro area — which is why this page gives ranges rather than a single planting date. The ZIP lookup above resolves it to one station.
Your freeze dates
Those are the earliest and latest medians among the 8 stations serving this metro — 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 — a zone is the average annual coldest night, a freeze date is when the season turns — 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 Spartanburg, SC it runs 195–231 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 85–90 °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. Summer rain over the same months runs 11.4–17.1" across those 8 stations, against the rough inch a week — about 13 inches over the same 92 days — that a vegetable garden is usually reckoned to want. At the middle station that is covered, so watering in Spartanburg, SC is for the gaps between storms rather than the whole season. The inches are NOAA's published normals; the inch a week is a rule of thumb, and it takes no account of a 89 °F summer afternoon drying the soil faster than a cool one.
When to start seeds in Spartanburg, SC
Every spring job for 63 crop dates, counted from this metro's own last spring freeze. Each is a range across all 8 stations — the earliest and latest that job falls anywhere in the metro — because no one station speaks for the whole area.
| Crop | Job | When | Offset |
|---|---|---|---|
| Green Onions | Start indoors | January 30 – February 16 | 8 weeks before |
| Peppers | Start indoors | January 30 – February 16 | 8 weeks before |
| Broccoli | Start indoors | February 13 – March 2 | 6 weeks before |
| Cabbage | Start indoors | February 13 – March 2 | 6 weeks before |
| Collards | Start indoors | February 13 – March 2 | 6 weeks before |
| Kale | Start indoors | February 13 – March 2 | 6 weeks before |
| Leaf Lettuce | Start indoors | February 13 – March 2 | 6 weeks before |
| Peas | Direct sow | February 13 – March 2 | 6 weeks before |
| Spinach | Direct sow | February 13 – March 2 | 6 weeks before |
| Sweet Potato | Start indoors | February 13 – March 2 | 6 weeks before |
| Tomatoes | Start indoors | February 13 – March 2 | 6 weeks before |
| Bok Choy | Start indoors | February 20 – March 9 | 5 weeks before |
| Kohlrabi | Start indoors | February 20 – March 9 | 5 weeks before |
| Swiss Chard | Start indoors | February 20 – March 9 | 5 weeks before |
| Arugula | Direct sow | February 27 – March 16 | 4 weeks before |
| Baby Salad Greens | Direct sow | February 27 – March 16 | 4 weeks before |
| Beets | Direct sow | February 27 – March 16 | 4 weeks before |
| Green Onions | Direct sow | February 27 – March 16 | 4 weeks before |
| Mustard Greens | Direct sow | February 27 – March 16 | 4 weeks before |
| Okra | Start indoors | February 27 – March 16 | 4 weeks before |
| Radishes | Direct sow | February 27 – March 16 | 4 weeks before |
| Turnips | Direct sow | February 27 – March 16 | 4 weeks before |
| Cabbage | Set out | March 6 – March 23 | 3 weeks before |
| Carrots | Direct sow | March 6 – March 23 | 3 weeks before |
| Collards | Direct sow | March 6 – March 23 | 3 weeks before |
| Collards | Set out | March 6 – March 23 | 3 weeks before |
| Cucumbers | Start indoors | March 6 – March 23 | 3 weeks before |
| Green Onions | Set out | March 6 – March 23 | 3 weeks before |
| Kale | Direct sow | March 6 – March 23 | 3 weeks before |
| Kale | Set out | March 6 – March 23 | 3 weeks before |
| Kohlrabi | Direct sow | March 6 – March 23 | 3 weeks before |
| Kohlrabi | Set out | March 6 – March 23 | 3 weeks before |
| Leaf Lettuce | Direct sow | March 6 – March 23 | 3 weeks before |
| Pumpkins | Start indoors | March 6 – March 23 | 3 weeks before |
| Summer Squash | Start indoors | March 6 – March 23 | 3 weeks before |
| Winter Squash | Start indoors | March 6 – March 23 | 3 weeks before |
| Zucchini | Start indoors | March 6 – March 23 | 3 weeks before |
| Bok Choy | Direct sow | March 13 – March 30 | 2 weeks before |
| Bok Choy | Set out | March 13 – March 30 | 2 weeks before |
| Broccoli | Set out | March 13 – March 30 | 2 weeks before |
| Cilantro | Direct sow | March 13 – March 30 | 2 weeks before |
| Leaf Lettuce | Set out | March 13 – March 30 | 2 weeks before |
| Swiss Chard | Direct sow | March 13 – March 30 | 2 weeks before |
| Swiss Chard | Set out | March 13 – March 30 | 2 weeks before |
| Dill | Direct sow | March 20 – April 6 | 1 week before |
| Bush Beans | Direct sow | April 3 – April 20 | 1 week after |
| Cucumbers | Set out | April 3 – April 20 | 1 week after |
| Pumpkins | Direct sow | April 3 – April 20 | 1 week after |
| Pumpkins | Set out | April 3 – April 20 | 1 week after |
| Summer Squash | Direct sow | April 3 – April 20 | 1 week after |
| Summer Squash | Set out | April 3 – April 20 | 1 week after |
| Sweet Corn | Direct sow | April 3 – April 20 | 1 week after |
| Tomatoes | Set out | April 3 – April 20 | 1 week after |
| Winter Squash | Direct sow | April 3 – April 20 | 1 week after |
| Winter Squash | Set out | April 3 – April 20 | 1 week after |
| Zucchini | Direct sow | April 3 – April 20 | 1 week after |
| Zucchini | Set out | April 3 – April 20 | 1 week after |
| Cucumbers | Direct sow | April 10 – April 27 | 2 weeks after |
| Okra | Direct sow | April 10 – April 27 | 2 weeks after |
| Okra | Set out | April 10 – April 27 | 2 weeks after |
| Peppers | Set out | April 10 – April 27 | 2 weeks after |
| Southern Peas | Direct sow | April 10 – April 27 | 2 weeks after |
| Sweet Potato | Set out | April 10 – April 27 | 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 lives through a zone 8a winter
Winter hardiness runs on the zone alone, so this one is exact for the whole of Spartanburg, SC rather than a range. Of 74 perennial fruits, nuts, berries, vegetables and herbs, 57 come through a zone 8a winter — and 8 of the failures are not about cold at all, but about winters too mild to break dormancy or summers too hot.
Among them: Apple, Aronia, Elderberry, Summer Raspberry, Asparagus, Horseradish, Rhubarb, Sunchoke. See the full list with reasons.
Cautious — shortens the seasonMedian across stationsOptimistic
- Last spring freeze
- Plan to April 27 to be careful. Median March 27 – April 13 across 8 stations; March 9 is the optimistic end.
- First fall freeze
- Plan to October 15 to be careful. Median October 26 – November 12 across 8 stations; December 1 is the optimistic end.
NOAA publishes these as probabilities, not averages — 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
All 8 NOAA stations whose normals this page quotes, spanning about 78 km north to south. Every one is named with its identifier in the station list below — 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 — the table below gives it per ZIP code rather than this page averaging it.
| Station | NOAA ID | Last spring freeze | First fall freeze | Season |
|---|---|---|---|---|
| Chesnee 7 Wsw, SC | USC00381625 | April 13 | October 26 | 195 days |
| Fountain Inn 2 SW, SC | USC00383145 | March 29 | November 5 | 222 days |
| Greer, SC | USW00003870 | March 28 | November 7 | 224 days |
| Laurens, SC | USC00385017 | April 1 | November 5 | 219 days |
| Santuck, SC | USC00387722 | April 4 | November 1 | 210 days |
| Spartanburg 3 Sse, SC | USC00388188 | April 8 | November 1 | 206 days |
| Tryon, NC | USC00318744 | March 27 | November 12 | 231 days |
| Union 8 S, SC | USC00388786 | April 6 | October 30 | 207 days |
These are medians, not averages — NOAA publishes freeze dates as a probability distribution, and half of years freeze later than the date shown.
Every ZIP code in Spartanburg, SC
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 — 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 |
|---|---|---|---|
| 29301 | 8a | Spartanburg 3 Sse, SC | 9.7 km |
| 29302 | 8a | Spartanburg 3 Sse, SC | 6.9 km |
| 29303 | 8a | Spartanburg 3 Sse, SC | 10.9 km |
| 29306 | 8a | Spartanburg 3 Sse, SC | 1.8 km |
| 29307 | 8a | Spartanburg 3 Sse, SC | 11.2 km |
| 29316 | 8a | Chesnee 7 Wsw, SC | 7.6 km |
| 29320 | 8a | Spartanburg 3 Sse, SC | 9.1 km |
| 29321 | 8a | Union 8 S, SC | 14.1 km |
| 29322 | 8a | Tryon, NC | 14.4 km |
| 29323 | 8a | Chesnee 7 Wsw, SC | 5.7 km |
| 29324 | 8a | Spartanburg 3 Sse, SC | 12.4 km |
| 29329 | 8a | Spartanburg 3 Sse, SC | 11.8 km |
| 29331 | 8a | Union 8 S, SC | 18.4 km |
| 29333 | 8a | Spartanburg 3 Sse, SC | 7.0 km |
| 29334 | 8a | Greer, SC | 9.1 km |
| 29335 | 8a | Laurens, SC | 20.7 km |
| 29338 | 8a | Chesnee 7 Wsw, SC | 4.1 km |
| 29349 | 8a | Chesnee 7 Wsw, SC | 10.4 km |
| 29353 | 8a | Santuck, SC | 24.7 km |
| 29364 | 8a | Santuck, SC | 17.9 km |
| 29365 | 8a | Greer, SC | 11.8 km |
| 29369 | 8a | Spartanburg 3 Sse, SC | 10.7 km |
| 29373 | 8a | Spartanburg 3 Sse, SC | 15.7 km |
| 29374 | 8a | Spartanburg 3 Sse, SC | 14.6 km |
| 29375 | 8a | Greer, SC | 10.0 km |
| 29376 | 8a | Spartanburg 3 Sse, SC | 11.1 km |
| 29377 | 8a | Greer, SC | 12.4 km |
| 29378 | 8a | Spartanburg 3 Sse, SC | 8.2 km |
| 29379 | 8a | Santuck, SC | 9.4 km |
| 29385 | 8a | Greer, SC | 14.7 km |
| 29388 | 8a | Fountain Inn 2 SW, SC | 19.2 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.
-
What survives my winter?
Runs on the hardiness zone, so it answers for all of Spartanburg, SC at once — zone 8a across 74 perennial fruits, berries, vegetables and herbs.
- When do I start my seeds?
Dates every spring job from your own last freeze — sow indoors, set out, direct sow.
- When do I sow the next round?
How often each crop is worth re-sowing, and when the next sowing is due.
- What can I still plant?
Counts the growing days left before your first fall freeze, crop by crop.
Other places to compare
These metros are also entirely zone 8a, so the winter answer here is the same one they get — the freeze dates and the spring calendar are their own.
- Abilene, TX — zone 8a
- Wichita Falls, TX — zone 8a
- Rocky Mount, NC — zone 8a
- Sherman-Denison, TX — zone 8a
- San Angelo, TX — zone 8a
- Decatur, AL — zone 8a
- Pinehurst-Southern Pines, NC — zone 8a
- Gadsden, AL — zone 8a
Gardening in South Carolina — zones 8a– 9b covers the whole state: how its 418 ZIP codes divide between 4 hardiness zones, and the freeze dates across every NOAA station in it.
Other metro areas in SC:
- Hilton Head Island-Bluffton-Port Royal, SC Zones 8b–9b
- Florence, SC Zone 8b
- Myrtle Beach-Conway-North Myrtle Beach, SC Zone 8b
- Sumter, SC Zone 8b
- Greenville-Anderson-Greer, SC Zones 8a–8b
- Columbia, SC Zones 8a–8b
- Charleston-North Charleston, SC Zones 8b–9a
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 — the search is the honest version, and you choose.
- Row cover and frost clothThe season here closes at the first fall freeze dated above — a cover buys back some of those days at the end.
- MulchFor the perennials nearest their cold limit in zone 8a, where an insulated crown is what decides whether they come back.
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.