Calendula illustration

Growing Calendula in Zone 13b

Zone 13b has a year-round growing season. Calendula can be planted almost any time with proper planning. Last frost: Jan 1. First frost: Dec 31.

Planting Calendar

Indoor
Outdoor
Harvest
Nov 20Dec 31

Season: Jan 1 – Dec 31 (364 days)

Zone13b
Last FrostJan 1
First FrostDec 31
Season Length364 days
Days to Harvest55
SunFull Sun
Frost ToleranceModerate
Spacing12/sqft

When to Plant Calendula in Zone 13b

Start Seeds Indoors: Nov 20

Start Calendula seeds indoors around Nov 20 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 7–14 days.

Transplant Outdoors: Dec 18

Transplant Calendula seedlings outdoors after Dec 18. Wait until soil temperature reaches 45°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.

Harvest: Jan 27

First harvest approximately Jan 27 (~40 days from transplant). Continue harvesting until first frost (Dec 31).

Frequently Asked Questions

When should I plant Calendula in Zone 13b?

Start Calendula seeds indoors around Nov 20. Transplant outdoors after Dec 18. Expect first harvest around Jan 27.

What is the last frost date for Zone 13b?

The average last spring frost date for Zone 13b is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.

Can I grow Calendula in Zone 13b?

Yes. Calendula needs 55 days to harvest. Zone 13b has a 364-day growing season, which is sufficient.

What is the best month to plant Calendula in Zone 13b?

The best time to start Calendula in Zone 13b is Nov. Begin seeds indoors around Nov 20, then transplant outdoors after the last frost date of Jan 1.

How long does Calendula take to harvest?

Calendula takes approximately 55 days from planting to harvest. In Zone 13b, expect your first harvest around Jan 27.

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