Growing Onions in Zone 6
When to plant and harvest onions in Zone 6— based on your zone's frost dates.
Zone 6 sits comfortably within onions' best range (Zones 3–9), so it grows well here on a standard schedule.
Onions planting calendar for Zone 6
These months are derived from Zone 6's frost dates — last frost around Mid April – early May, first frost around Mid October – early November.
Start indoors
February
Sow outdoors
—
Transplant
March
Harvest
August
Onions care at a glance
- Sunlight
- Full sun
- Water
- 1 inch per week; stop as tops fall
- Spacing
- 4 in apart
- Days to maturity
- 90–120 days
- Best zones
- 3–9 (choose day-length type for your latitude)
Growing onions in Zone 6: FAQs
Can you grow onions in Zone 6?＋
Zone 6 sits comfortably within onions' best range (Zones 3–9), so it grows well here on a standard schedule.
When should I plant onions in Zone 6?＋
In Zone 6, start seeds indoors around February. Zone 6's last spring frost is typically Mid April – early May and its first fall frost around Mid October – early November, which sets the planting window.
When to harvest onions in Zone 6?＋
Expect to harvest onions in Zone 6 around August, depending on the season and variety.
Full Onions guide →
Complete care, problems, companions, and harvest tips.
Zone 6 overview →
Frost dates, climate, and everything to grow here.
June in Zone 6 →
What to sow, transplant, and harvest this month.