Growing Zinnias in Zone 12
When to plant and harvest zinnias in Zone 12— based on your zone's frost dates.
Zone 12 sits just outside zinnias' ideal range (Zones 2–11), but a good harvest is achievable with careful timing and a little season extension.
Zinnias 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
—
Sow outdoors
January
Transplant
—
Harvest
March
Zinnias care at a glance
- Sunlight
- Full sun (6+ hours)
- Water
- Moderate; water at the base
- Spacing
- 6–12 in apart
- Days to maturity
- 60–70 days
- Best zones
- 2–11 (warm-season annual)
Growing zinnias in Zone 12: FAQs
Can you grow zinnias in Zone 12?＋
Zone 12 sits just outside zinnias' ideal range (Zones 2–11), but a good harvest is achievable with careful timing and a little season extension.
When should I plant zinnias in Zone 12?＋
In Zone 12, sow outdoors around January. Zone 12's last spring frost is typically None and its first fall frost around None, which sets the planting window.
When to harvest zinnias in Zone 12?＋
Expect to harvest zinnias in Zone 12 around March, depending on the season and variety.
Full Zinnias 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.