Growing Onions in Zone 8
When to plant and harvest onions in Zone 8— based on your zone's frost dates.
Zone 8 sits comfortably within onions' best range (Zones 3–9), so it grows well here on a standard schedule.
Onions planting calendar for Zone 8
These months are derived from Zone 8's frost dates — last frost around Late February – late March, first frost around Mid November – mid December.
Start indoors
January
Sow outdoors
—
Transplant
February
Harvest
July
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 8: FAQs
Can you grow onions in Zone 8?＋
Zone 8 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 8?＋
In Zone 8, start seeds indoors around January. Zone 8's last spring frost is typically Late February – late March and its first fall frost around Mid November – mid December, which sets the planting window.
When to harvest onions in Zone 8?＋
Expect to harvest onions in Zone 8 around July, depending on the season and variety.
Full Onions guide →
Complete care, problems, companions, and harvest tips.
Zone 8 overview →
Frost dates, climate, and everything to grow here.
June in Zone 8 →
What to sow, transplant, and harvest this month.