When to Plant Crosne in Spartanburg 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.
Spartanburg County, South Carolina is in USDA Zone 7b. The average last spring frost is April 7 and the first fall frost is November 1, giving you a growing season of approximately 208 days.
At an elevation of 275 feet, Spartanburg County receives approximately 52.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Crosne during the growing season. Clay soil retains moisture well for Crosne, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crosne root diseases.
Spartanburg County Soil Profile
Soil Type
Clay Loam
Soil pH
5.2-6.8
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
Crosne Planting Timeline — Spartanburg County, SC
Crosne Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 24 | Mar 24 – Apr 14 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
| Harvest | August 25 | Aug 25 – Oct 27 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | Direct Sow |
| May | — |
| June | — |
| July | — |
| August | Fall Sowing Harvest |
| September | Fall Sowing Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
150–200 days
Soil pH
6 – 7
USDA Zone
Zone 7b
Growing Season
208 days
Growing Tips for Spartanburg 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
Crosne in Other Locations
Frequently Asked Questions
When should I plant Crosne in Spartanburg County, SC?
Spartanburg County is in Zone 7b with an average last frost of April 7. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.
What planting zone is Spartanburg County, SC?
Spartanburg County, South Carolina is in USDA Hardiness Zone 7b. The average last spring frost is April 7 and first fall frost is November 1.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Spartanburg County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.