When to plant Radicchio in Kane County, IL
Kane County gardeners should plant Radicchio between April 9 and April 30 in spring. With Kane County's Zone 5b climate (last frost April 23), Radicchio needs 60–80 days to mature — plant by July 29 for a full harvest. A second sowing from August 8 to August 22 extends the harvest into fall.
When to Plant Radicchio in Kane County, IL
Radicchio is an Italian chicory with stunning red and white leaves and a pleasantly bitter flavor. It forms tight heads and is used in salads, grilled, or braised.
Kane County, Illinois is in USDA Zone 5b. The average last spring frost is April 23 and the first fall frost is October 17, giving you a growing season of approximately 177 days.
At an elevation of 699 feet, Kane County receives approximately 35.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Radicchio during the growing season.
Kane County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Radicchio Planting Timeline — Kane County, IL
Radicchio Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 19 | Mar 19 – Apr 2 |
| Transplant Outdoors | April 23 | Apr 23 – May 7 |
| Direct Sow | April 9 | Apr 9 – Apr 30 |
| Harvest | June 25 | Jun 25 – Jul 30 |
| Fall Sowing | August 8 | Aug 8 – Aug 22 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–80 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
177 days in Kane County
Growing Tips for Kane County
Start in late summer for fall harvest. The red color develops with cool nights and light frost. Harvest when heads are firm and compact.
Companion Planting
Good Companions
Avoid Planting Near
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Radicchio in Other Locations
Frequently Asked Questions
When should I plant Radicchio in Kane County, IL?
Kane County is in Zone 5b with an average last frost of April 23. Plan your Radicchio planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kane County, IL?
Kane County, Illinois is in USDA Hardiness Zone 5b. The average last spring frost is April 23 and first fall frost is October 17.
When should I plant Radicchio in Kane County, IL?
In Kane County, IL, plant Radicchio after the last frost (around April 23) and before the first frost (around October 17). Best results when soil holds above 50°F.
What growing zone is Kane County, IL for Radicchio?
Kane County sits in USDA Zone 5b. Radicchio grows reliably in zones 4a through 10b, so it's a good fit here.
Can Radicchio grow in Kane County's climate?
Yes — Radicchio grows well in Kane County's temperate climate. Kane County averages a 177-day frost-free season, with last frost around April 23 and first frost around October 17.
Your Kane County Garden Planner — Free
A 22-page printable planner built for Kane County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.