Growing Black-Eyed Susan in Zone 10a
Zone 10a has a year-round growing season. Black-Eyed Susan can be planted almost any time with proper planning. Last frost: Feb 20. First frost: Dec 1.
Planting Calendar
Season: Feb 20 – Dec 1 (284 days)
When to Plant Black-Eyed Susan in Zone 10a
Start Seeds Indoors: Dec 26
Start Black-Eyed Susan seeds indoors around Dec 26 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 10–21 days.
Transplant Outdoors: Feb 20
Transplant Black-Eyed Susan seedlings outdoors after Feb 20. Wait until soil temperature reaches 55°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.
Harvest: May 21
First harvest approximately May 21 (~90 days from transplant). Continue harvesting until first frost (Dec 1). Black-Eyed Susan can overwinter in mild climates for continued harvest.
Black-Eyed Susan in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Black-Eyed Susan in Zone 10a?
Start Black-Eyed Susan seeds indoors around Dec 26. Transplant outdoors after Feb 20. Expect first harvest around May 21.
What is the last frost date for Zone 10a?
The average last spring frost date for Zone 10a is Feb 20. The first fall frost averages Dec 1, giving a 284-day growing season.
Can I grow Black-Eyed Susan in Zone 10a?
Yes. Black-Eyed Susan needs 75 days to harvest. Zone 10a has a 284-day growing season, which is sufficient.
What is the best month to plant Black-Eyed Susan in Zone 10a?
The best time to start Black-Eyed Susan in Zone 10a is Dec. Begin seeds indoors around Dec 26, then transplant outdoors after the last frost date of Feb 20.
How long does Black-Eyed Susan take to harvest?
Black-Eyed Susan takes approximately 75 days from planting to harvest. In Zone 10a, expect your first harvest around May 21.
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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