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When to Plant Crosne in Dorchester County, SC

Crosne (Chinese artichoke) produces small, segmented white tubers with a crunchy texture and mild artichoke-nutty flavor. They are a rare delicacy in French cuisine.

Dorchester County, South Carolina is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 13, giving you a growing season of approximately 248 days.

At an elevation of 107 feet, Dorchester County receives approximately 49.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94ยฐF, providing good warmth for Crosne during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Crosne will need more frequent watering and organic matter to retain nutrients.

Dorchester County, SC (Zone 8b) Long season
248 days
Last Spring Frost March 10
248 growing days
First Fall Frost November 13

Dorchester County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (41 days to spare)
Transplant: Feb 21 🍅 Harvest: Jul 25 – Sep 26
Recommended (50%) ✓ Fits season (31 days to spare)
Transplant: Mar 10 🍅 Harvest: Aug 11 – Oct 13
Safe Start (90%) ✓ Fits season (33 days to spare)
Transplant: Apr 7 🍅 Harvest: Sep 8 – Nov 10

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

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Crosne needs ~3,588 GDD — county provides 5,084 GDD Excellent fit

Crosne Planting Timeline โ€” Dorchester County, SC

Crosne Planting Calendar

Activity When Date Range
Direct Sow February 24 Feb 24 โ€“ Mar 17
Fall Sowing September 4 Sep 4 โ€“ Sep 18
Harvest July 28 Jul 28 โ€“ Sep 29

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February Direct Sow
March Direct Sow
April โ€”
May โ€”
June โ€”
July Harvest
August Harvest
September Fall Sowing Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

150โ€“200 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

248 days

Growing Tips for Dorchester County

Plant tubers 3 inches deep in spring. Mark the location well as plants die back. Harvest in late fall after frost. Leave some tubers in ground for next year. Very labor-intensive to harvest.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Crosne in Dorchester County, SC?

Dorchester County is in Zone 8b with an average last frost of March 10. Plan your Crosne planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Dorchester County, SC?

Dorchester County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 13.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Dorchester County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Dorchester County, SC. Local conditions may vary. Last updated: April 2026.