When to plant Crosne in Jefferson County, FL
Crosne planted in Jefferson County between February 16 and March 9 matures in 150–200 days — well before the November 21 first frost. A second sowing from September 26 to October 10 extends the harvest into fall.
When to Plant Crosne in Jefferson County, FL
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.
Jefferson County, Florida is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 21, giving you a growing season of approximately 257 days.
At an elevation of 105 feet, Jefferson County receives approximately 56 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Crosne may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Crosne will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crosne root diseases.
Jefferson County Soil Profile
Soil Type
Sand
Soil pH
6.0-7.0
Drainage
Well Drained
Crosne Planting Timeline — Jefferson County, FL
Crosne Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 16 | Feb 16 – Mar 9 |
| Harvest | July 20 | Jul 20 – Sep 21 |
| Fall Sowing | September 26 | Sep 26 – Oct 10 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Direct Sow |
| March | Direct Sow |
| April | — |
| May | — |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Fall Sowing Harvest |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
150–200 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 9a
📆 Growing Season
257 days in Jefferson County
Growing Tips for Jefferson 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
Check more plant combinations with our Companion Planting Checker →
Crosne in Other Locations
Frequently Asked Questions
When should I plant Crosne in Jefferson County, FL?
Jefferson County is in Zone 9a with an average last frost of March 9. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jefferson County, FL?
Jefferson County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 21.
When should I plant Crosne in Jefferson County, FL?
In Jefferson County, FL, plant Crosne after the last frost (around March 9) and before the first frost (around November 21). Best results when soil holds above 50°F.
What growing zone is Jefferson County, FL for Crosne?
Jefferson County sits in USDA Zone 9a. Crosne grows reliably in zones 4a through 9b, so it's a good fit here.
Can Crosne grow in Jefferson County's climate?
Yes — Crosne grows well in Jefferson County's temperate climate. Jefferson County averages a 257-day frost-free season, with last frost around March 9 and first frost around November 21.
Your Jefferson County Garden Planner — Free
A 22-page printable planner built for Jefferson County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.