When to Plant Carrots in Barnwell County, SC
Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.
Barnwell County, South Carolina is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 10, giving you a growing season of approximately 233 days.
At an elevation of 157 feet, Barnwell County receives approximately 48.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97°F, so Carrots may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Carrots will need more frequent watering and organic matter to retain nutrients.
Barnwell County Soil Profile
Soil Type
Sandy Loam
Soil pH
5-6.3
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Carrots Planting Timeline — Barnwell County, SC
Carrots Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 8 | Mar 8 – Mar 29 |
| Fall Sowing | September 1 | Sep 1 – Sep 15 |
| Harvest | May 10 | May 10 – Jun 14 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | — |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
60–80 days
Soil pH
6 – 6.8
USDA Zone
Zone 8a
Growing Season
233 days
Growing Tips for Barnwell County
Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial — requires two seasons.
Carrots in Other Locations
Frequently Asked Questions
When should I plant Carrots in Barnwell County, SC?
Barnwell County is in Zone 8a with an average last frost of March 22. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.
What planting zone is Barnwell County, SC?
Barnwell County, South Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 10.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Barnwell County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
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