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When to Plant Black-eyed Susan in Marietta, North Carolina (28362)

Location

Marietta, North Carolina

ZIP Code

28362

USDA Zone

8b

Last Frost

Sunday, March 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, February 15, 2026

Pro Tip: Sow Black-eyed Susan directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Rudbeckia hirta
Days to Maturity 85 days
Mature Height 18-36"
Spread 18"
Type Annual/Perennial

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low (drought tolerant)

↔️

Spacing

18" apart

🌱

Planting Depth

0.13" deep

Seeds typically germinate in 7-14 days

Ready to Plant Black-eyed Susan in Marietta?

Get your seeds now so they're ready by Sunday, February 15, 2026.

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🤝 Good Companions

EchinaceaLavenderSageSwitchgrass

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Growing Black-eyed Susan in Zone 8b

Black-eyed Susan (Rudbeckia hirta) is a popular garden vegetable. In Marietta, North Carolina, which is in USDA Hardiness Zone 8b, you should direct sow seeds around Sunday, February 15, 2026.

Your average last frost date is Sunday, March 15, 2026. Black-eyed Susan grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.