When to plant Collard Greens in Jasper County, IL
Plant Collard Greens in Jasper County after April 13; the prime window is March 30–April 20. A second sowing from August 11 to August 25 extends the harvest into fall.
When to Plant Collard Greens in Jasper County, IL
Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.
Jasper County, Illinois is in USDA Zone 6b. The average last spring frost is April 13 and the first fall frost is October 20, giving you a growing season of approximately 190 days.
At an elevation of 1,384 feet, Jasper County receives approximately 35 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Collard Greens during the growing season.
Jasper County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Collard Greens Planting Timeline — Jasper County, IL
Collard Greens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 9 | Mar 9 – Mar 23 |
| Transplant Outdoors | April 13 | Apr 13 – Apr 27 |
| Direct Sow | March 30 | Mar 30 – Apr 20 |
| Harvest | June 8 | Jun 8 – Aug 10 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
55–75 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
190 days in Jasper County
Growing Tips for Jasper County
Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.
Companion Planting
Good Companions
Avoid Planting Near
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Collard Greens in Other Locations
Frequently Asked Questions
When should I plant Collard Greens in Jasper County, IL?
Jasper County is in Zone 6b with an average last frost of April 13. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jasper County, IL?
Jasper County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 13 and first fall frost is October 20.
When should I plant Collard Greens in Jasper County, IL?
In Jasper County, IL, plant Collard Greens after the last frost (around April 13) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Jasper County, IL for Collard Greens?
Jasper County sits in USDA Zone 6b. Collard Greens grows reliably in zones 2a through 11b, so it's a good fit here.
Can Collard Greens grow in Jasper County's climate?
Yes — Collard Greens grows well in Jasper County's temperate climate. Jasper County averages a 190-day frost-free season, with last frost around April 13 and first frost around October 20.
Your Jasper County Garden Planner — Free
A 22-page printable planner built for Jasper County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.