Black-Eyed Susan illustration

Growing Black-Eyed Susan in Zone 11a

Zone 11a has a year-round growing season. Black-Eyed Susan can be planted almost any time with proper planning. Last frost: Jan 28. First frost: Dec 22.

Planting Calendar

Indoor
Outdoor
Harvest
Dec 3Dec 22

Season: Jan 28 – Dec 22 (328 days)

Zone11a
Last FrostJan 28
First FrostDec 22
Season Length328 days
Days to Harvest75
SunFull Sun
Frost ToleranceModerate
Spacing12/sqft

When to Plant Black-Eyed Susan in Zone 11a

Start Seeds Indoors: Dec 3

Start Black-Eyed Susan seeds indoors around Dec 3 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 10–21 days.

Transplant Outdoors: Jan 28

Transplant Black-Eyed Susan seedlings outdoors after Jan 28. Wait until soil temperature reaches 55°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.

Harvest: Apr 28

First harvest approximately Apr 28 (~90 days from transplant). Continue harvesting until first frost (Dec 22). Black-Eyed Susan can overwinter in mild climates for continued harvest.

Frequently Asked Questions

When should I plant Black-Eyed Susan in Zone 11a?

Start Black-Eyed Susan seeds indoors around Dec 3. Transplant outdoors after Jan 28. Expect first harvest around Apr 28.

What is the last frost date for Zone 11a?

The average last spring frost date for Zone 11a is Jan 28. The first fall frost averages Dec 22, giving a 328-day growing season.

Can I grow Black-Eyed Susan in Zone 11a?

Yes. Black-Eyed Susan needs 75 days to harvest. Zone 11a has a 328-day growing season, which is sufficient.

What is the best month to plant Black-Eyed Susan in Zone 11a?

The best time to start Black-Eyed Susan in Zone 11a is Dec. Begin seeds indoors around Dec 3, then transplant outdoors after the last frost date of Jan 28.

How long does Black-Eyed Susan take to harvest?

Black-Eyed Susan takes approximately 75 days from planting to harvest. In Zone 11a, expect your first harvest around Apr 28.

Plan Your Black-Eyed Susan Garden

Track Black-Eyed Susan from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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