When to Plant Scallions in Decatur County, IN
Scallions (green onions) are mild-flavored alliums harvested for their slender green tops and white bases. They are quick-growing and perfect for succession planting.
Decatur County, Indiana is in USDA Zone 6a. The average last spring frost is April 10 and the first fall frost is October 20, giving you a growing season of approximately 193 days.
At an elevation of 985 feet, Decatur County receives approximately 32.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Scallions during the growing season.
Decatur County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7.1
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
Scallions Planting Timeline — Decatur County, IN
Scallions Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 6 | Mar 6 – Mar 20 |
| Transplant Outdoors | April 10 | Apr 10 – Apr 24 |
| Direct Sow | March 27 | Mar 27 – Apr 17 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
| Harvest | June 5 | Jun 5 – Jul 3 |
Plant 0.5" deep · 6" apart · Rows 12" 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 |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
50–70 days
Soil pH
6 – 7
USDA Zone
Zone 6a
Growing Season
193 days
Growing Tips for Decatur County
Direct sow every 3 weeks for continuous harvest. Thin to 1 inch apart or grow in clusters. Harvest when pencil-thick by pulling or cutting at soil level.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Scallions in Other Locations
Frequently Asked Questions
When should I plant Scallions in Decatur County, IN?
Decatur County is in Zone 6a with an average last frost of April 10. Plan your Scallions planting based on this frost date — see the calendar above for exact timing.
What planting zone is Decatur County, IN?
Decatur County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 10 and first fall frost is October 20.
Plan Your Garden with Confidence
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