Black-Eyed Susan illustration

Growing Black-Eyed Susan in Zone 1b

Zone 1b has harsh winters and a short growing season. Start Black-Eyed Susan early indoors to maximize your harvest window. Last frost: May 25. First frost: Aug 28.

Planting Calendar

Indoor
Outdoor
Harvest
Mar 30Aug 28

Season: May 25 – Aug 28 (95 days)

Zone1b
Last FrostMay 25
First FrostAug 28
Season Length95 days
Days to Harvest75
SunFull Sun
Frost ToleranceModerate
Spacing12/sqft

When to Plant Black-Eyed Susan in Zone 1b

Start Seeds Indoors: Mar 30

Start Black-Eyed Susan seeds indoors around Mar 30 (8 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 10–21 days.

Transplant Outdoors: May 25

Transplant Black-Eyed Susan seedlings outdoors after May 25. Wait until soil temperature reaches 55°F. Space plants at 12/sqft. Harden off plants for a week before moving outside.

Harvest: Aug 23

First harvest approximately Aug 23 (~90 days from transplant). Continue harvesting until first frost (Aug 28). Black-Eyed Susan can overwinter in mild climates for continued harvest.

Frequently Asked Questions

When should I plant Black-Eyed Susan in Zone 1b?

Start Black-Eyed Susan seeds indoors around Mar 30. Transplant outdoors after May 25. Expect first harvest around Aug 23.

What is the last frost date for Zone 1b?

The average last spring frost date for Zone 1b is May 25. The first fall frost averages Aug 28, giving a 95-day growing season.

Can I grow Black-Eyed Susan in Zone 1b?

Yes. Black-Eyed Susan needs 75 days to harvest. Zone 1b has a 95-day growing season, which is sufficient.

What is the best month to plant Black-Eyed Susan in Zone 1b?

The best time to start Black-Eyed Susan in Zone 1b is Mar. Begin seeds indoors around Mar 30, then transplant outdoors after the last frost date of May 25.

How long does Black-Eyed Susan take to harvest?

Black-Eyed Susan takes approximately 75 days from planting to harvest. In Zone 1b, expect your first harvest around Aug 23.

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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