Growing Black-Eyed Susan in Zone 3a
Zone 3a has harsh winters and a short growing season. Start Black-Eyed Susan early indoors to maximize your harvest window. Last frost: May 22. First frost: Sep 12.
Planting Calendar
Season: May 22 – Sep 12 (113 days)
When to Plant Black-Eyed Susan in Zone 3a
Start Seeds Indoors: Mar 27
Start Black-Eyed Susan seeds indoors around Mar 27 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 10–21 days.
Transplant Outdoors: May 22
Transplant Black-Eyed Susan seedlings outdoors after May 22. Wait until soil temperature reaches 55°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.
Harvest: Aug 20
First harvest approximately Aug 20 (~90 days from transplant). Continue harvesting until first frost (Sep 12). 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 3a?
Start Black-Eyed Susan seeds indoors around Mar 27. Transplant outdoors after May 22. Expect first harvest around Aug 20.
What is the last frost date for Zone 3a?
The average last spring frost date for Zone 3a is May 22. The first fall frost averages Sep 12, giving a 113-day growing season.
Can I grow Black-Eyed Susan in Zone 3a?
Yes. Black-Eyed Susan needs 75 days to harvest. Zone 3a has a 113-day growing season, which is sufficient.
What is the best month to plant Black-Eyed Susan in Zone 3a?
The best time to start Black-Eyed Susan in Zone 3a is Mar. Begin seeds indoors around Mar 27, then transplant outdoors after the last frost date of May 22.
How long does Black-Eyed Susan take to harvest?
Black-Eyed Susan takes approximately 75 days from planting to harvest. In Zone 3a, expect your first harvest around Aug 20.
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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