When to Plant Scallions in Vanderburgh 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.
Vanderburgh County, Indiana is in USDA Zone 6b. The average last spring frost is April 7 and the first fall frost is October 29, giving you a growing season of approximately 205 days.
At an elevation of 901 feet, Vanderburgh County receives approximately 40.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Scallions during the growing season.
Vanderburgh County Soil Profile
Soil Type
Silt Loam
Soil pH
6-6.8
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
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Scallions Planting Timeline — Vanderburgh County, IN
Scallions Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 3 | Mar 3 – Mar 17 |
| Transplant Outdoors | April 7 | Apr 7 – Apr 21 |
| Direct Sow | March 24 | Mar 24 – Apr 14 |
| Fall Sowing | August 20 | Aug 20 – Sep 3 |
| Harvest | June 2 | Jun 2 – Jun 30 |
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 | — |
| August | Fall Sowing |
| September | Fall Sowing |
| 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 6b
Growing Season
205 days
Growing Tips for Vanderburgh 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 Vanderburgh County, IN?
Vanderburgh County is in Zone 6b with an average last frost of April 7. Plan your Scallions planting based on this frost date — see the calendar above for exact timing.
What planting zone is Vanderburgh County, IN?
Vanderburgh County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 7 and first fall frost is October 29.
Plan Your Garden with Confidence
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