When to plant Crosne in Jo Daviess County, IL
Jo Daviess County's spring Crosne window runs April 10 through May 1. time plantings around the expected last-frost window for best survival. A second sowing from August 2 to August 16 extends the harvest into fall.
When to Plant Crosne in Jo Daviess County, IL
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.
Jo Daviess County, Illinois is in USDA Zone 5a. The average last spring frost is April 24 and the first fall frost is October 11, giving you a growing season of approximately 170 days.
At an elevation of 501 feet, Jo Daviess County receives approximately 35.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Crosne during the growing season.
Jo Daviess County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Crosne Planting Timeline — Jo Daviess County, IL
Crosne Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 10 | Apr 10 – May 1 |
| Harvest | September 11 | Sep 11 – Sep 25 |
| Fall Sowing | August 2 | Aug 2 – Aug 16 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Direct Sow |
| June | — |
| July | — |
| August | Fall Sowing |
| September | Harvest |
| October | — |
| 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 5a
📆 Growing Season
170 days in Jo Daviess County
Growing Tips for Jo Daviess 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 Jo Daviess County, IL?
Jo Daviess County is in Zone 5a with an average last frost of April 24. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jo Daviess County, IL?
Jo Daviess County, Illinois is in USDA Hardiness Zone 5a. The average last spring frost is April 24 and first fall frost is October 11.
When should I plant Crosne in Jo Daviess County, IL?
In Jo Daviess County, IL, plant Crosne after the last frost (around April 24) and before the first frost (around October 11). Best results when soil holds above 50°F.
What growing zone is Jo Daviess County, IL for Crosne?
Jo Daviess County sits in USDA Zone 5a. Crosne grows reliably in zones 4a through 9b, so it's a good fit here.
Can Crosne grow in Jo Daviess County's climate?
Yes — Crosne grows well in Jo Daviess County's temperate climate. Jo Daviess County averages a 170-day frost-free season, with last frost around April 24 and first frost around October 11.
Your Jo Daviess County Garden Planner — Free
A 22-page printable planner built for Jo Daviess County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.