Growing Marigolds in Zone 12
When to plant and harvest marigolds in Zone 12— based on your zone's frost dates.
Zone 12 sits just outside marigolds' ideal range (Zones 2–11), but a good harvest is achievable with careful timing and a little season extension.
Marigolds planting calendar for Zone 12
These months are derived from Zone 12's frost dates — last frost around None, first frost around None.
Start indoors
December
Sow outdoors
—
Transplant
January
Harvest
—
Marigolds care at a glance
- Sunlight
- Full sun (6+ hours)
- Water
- Moderate; drought-tolerant once established
- Spacing
- 8–12 in apart
- Days to maturity
- 50–60 days
- Best zones
- 2–11 (warm-season annual)
Growing marigolds in Zone 12: FAQs
Can you grow marigolds in Zone 12?＋
Zone 12 sits just outside marigolds' ideal range (Zones 2–11), but a good harvest is achievable with careful timing and a little season extension.
When should I plant marigolds in Zone 12?＋
In Zone 12, start seeds indoors around December. Zone 12's last spring frost is typically None and its first fall frost around None, which sets the planting window.
When to harvest marigolds in Zone 12?＋
Harvest timing depends on your planting date and variety — marigolds typically matures in 50–60 days. See the full guide for harvest cues.
Full Marigolds guide →
Complete care, problems, companions, and harvest tips.
Zone 12 overview →
Frost dates, climate, and everything to grow here.
June in Zone 12 →
What to sow, transplant, and harvest this month.