When to Plant Onion in Newport News City, VA
Onions are a fundamental kitchen staple available in yellow, white, and red varieties. Choose long-day, short-day, or intermediate types based on your latitude.
Newport News City, Virginia is in USDA Zone 7b. The average last spring frost is March 22 and the first fall frost is November 17, giving you a growing season of approximately 240 days.
At an elevation of 356 feet, Newport News City receives approximately 41.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Onion during the growing season.
Newport News City Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-7.1
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
Onion Planting Timeline — Newport News City, VA
Onion Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 15 | Feb 15 – Mar 1 |
| Transplant Outdoors | March 22 | Mar 22 – Apr 5 |
| Direct Sow | March 8 | Mar 8 – Mar 29 |
| Fall Sowing | September 8 | Sep 8 – Sep 22 |
| Harvest | June 21 | Jun 21 – Aug 9 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
90–120 days
Soil pH
6 – 7
USDA Zone
Zone 7b
Growing Season
240 days
Growing Tips for Newport News City
Start seeds indoors 8-10 weeks before transplanting. Match day-length type to your latitude. Stop watering when tops begin to fall over and cure bulbs for 2-3 weeks before storage.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Onion in Other Locations
Frequently Asked Questions
When should I plant Onion in Newport News City, VA?
Newport News City is in Zone 7b with an average last frost of March 22. Plan your Onion planting based on this frost date — see the calendar above for exact timing.
What planting zone is Newport News City, VA?
Newport News City, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is March 22 and first fall frost is November 17.
Plan Your Garden with Confidence
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