Blackstock, SC frost dates
Last spring frostApr 3median date
First fall frostNov 2median date
Growing season213 daysfrost-free
Hardiness zone8aZone 8a
How Blackstock compares
- In 8 years out of 10, the last spring frost in Blackstock falls between March 17 and April 19, a 33-day window. The first fall frost falls between October 20 and November 18.
- The median last frost is 9 days later than the South Carolina median of Mar 25.
- Its 213-day growing season is longer than 16% of the 375 South Carolina places with a regular frost season (state median 228 days).
- The last frost is 5 days later than the zone 8a median of Mar 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 8a chart.
- The weather station records an average of 83 nights a year at or below 32°F.
- Compared with Rock Hill, SC, 44 km away, the last frost here is 3 days later than there and the growing season is 5 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 17 |
| 50% (median) | April 3 |
| 10% (safe for tender plants) | April 19 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 20 |
| 50% (median) | November 2 |
| 90% (late) | November 18 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Blackstock, SC
Blackstock, SC frost dates — last frost Apr 3, first frost Nov 2, zone 8a. whenisthelastfrost.com
Crop
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Start indoors: Jan 9 to Jan 23Transplant outside: Mar 6 to Mar 20
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Jan 23 to Feb 6Transplant outside: Apr 17 to May 1
Start indoors: Feb 6 to Feb 20Transplant outside: Apr 10 to Apr 24
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 6 to Apr 10Plant for fall: Sep 7 to Oct 5
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 6 to Mar 20Sow outdoors: Mar 6 to Mar 20Plant for fall: Aug 24 to Sep 14
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 13 to Mar 27Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 6 to Feb 20Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 24 to May 8Sow outdoors: Apr 24 to May 8
Start indoors: Feb 20 to Mar 6Transplant outside: Apr 10 to Apr 24
Sow outdoors: Feb 20 to Mar 13Plant for fall: Aug 10 to Aug 31
Sow outdoors: Feb 20 to Mar 13Plant for fall: Sep 7 to Sep 28
Sow outdoors: Feb 27 to Apr 10Plant for fall: Sep 21 to Oct 12
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to Apr 24Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 24 to Sep 7
Start indoors: Mar 6 to Mar 13Sow outdoors: Apr 10 to Apr 24
Start indoors: Mar 6 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Mar 13 to Apr 10Plant for fall: Aug 10 to Aug 24
Sow outdoors: Mar 13 to Apr 10Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 13 to Apr 3
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 20 to Apr 10Plant for fall: Sep 7 to Sep 28
Sow outdoors: Apr 10 to May 1Plant for fall: Aug 17 to Aug 31
Sow outdoors: Apr 10 to Apr 24
Transplant outside: Apr 17 to May 8
Plant for fall: Oct 19 to Nov 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Blackstock, SC
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 9 – Jan 23 | Mar 6 – Mar 20 | — | — |
| Peppers | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Eggplant | Jan 23 – Feb 6 | Apr 17 – May 1 | — | — |
| Tomatoes | Feb 6 – Feb 20 | Apr 10 – Apr 24 | — | — |
| Lettuce | Feb 6 – Feb 20 | Mar 13 – Mar 27 | Mar 6 – Apr 10 | Sep 7 – Oct 5 |
| Kale | Feb 6 – Feb 20 | Mar 6 – Mar 20 | Mar 6 – Mar 20 | Aug 24 – Sep 14 |
| Broccoli | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Jul 27 – Aug 17 |
| Cabbage | Feb 6 – Feb 20 | Mar 13 – Mar 27 | — | Jul 27 – Aug 17 |
| Cauliflower | Feb 6 – Feb 20 | Mar 20 – Apr 3 | — | Jul 27 – Aug 17 |
| Okra | Feb 20 – Mar 6 | Apr 24 – May 8 | Apr 24 – May 8 | — |
| Basil | Feb 20 – Mar 6 | Apr 10 – Apr 24 | — | — |
| Peas | — | — | Feb 20 – Mar 13 | Aug 10 – Aug 31 |
| Spinach | — | — | Feb 20 – Mar 13 | Sep 7 – Sep 28 |
| Radishes | — | — | Feb 27 – Apr 10 | Sep 21 – Oct 12 |
| Cucumbers | Mar 6 – Mar 13 | Apr 17 – Apr 24 | Apr 10 – Apr 24 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Mar 6 – Mar 13 | — | Apr 10 – Apr 24 | — |
| Melons & Watermelon | Mar 6 – Mar 13 | Apr 17 – May 1 | — | — |
| Carrots | — | — | Mar 13 – Apr 10 | Aug 10 – Aug 24 |
| Beets | — | — | Mar 13 – Apr 10 | Aug 24 – Sep 7 |
| Potatoes | — | — | Mar 13 – Apr 3 | — |
| Swiss Chard | — | — | Mar 20 – Apr 17 | Aug 24 – Sep 7 |
| Cilantro | — | — | Mar 20 – Apr 10 | Sep 7 – Sep 28 |
| Green Beans | — | — | Apr 10 – May 1 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Apr 10 – Apr 24 | — |
| Sweet Potatoes | — | Apr 17 – May 8 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Chester 1 Se, SC weather station, 13 km away (elevation 561 ft (171 m)).
Frost dates near Blackstock
- Richburg Apr 3 · Nov 2
- Chester Apr 3 · Nov 2
- Great Falls Mar 31 · Nov 6
- Winnsboro Mar 31 · Nov 6
- Blair Apr 4 · Nov 1
- Fort Lawn Apr 3 · Nov 2
- Lando Mar 27 · Nov 5
- Edgemoor Mar 27 · Nov 5
- Rion Mar 31 · Nov 6
- Carlisle Apr 4 · Nov 1
Frequently asked questions
When is the last frost in Blackstock, SC?
The median last spring frost in Blackstock, SC is April 3. There is still about a 10% chance of frost after April 19, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Blackstock, SC?
The median first fall frost is November 2, with about a 10% chance of frost before October 20.
How long is the growing season in Blackstock, SC?
About 213 days between the median last spring frost and first fall frost.
What planting zone is Blackstock, SC?
Blackstock, SC is in USDA hardiness zone 8a.