When to Plant Sweet Alyssum in Durham, North Carolina (27708)

Location

Durham, North Carolina

ZIP Code

27708

USDA Zone

Last Frost

Friday, March 20, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, February 20, 2026

Pro Tip: Sow Sweet Alyssum directly outdoors 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Lobularia maritima

Days to Maturity 45 days

Mature Height 4-8"

Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

6" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 5-10 days

Ready to Plant Sweet Alyssum in Durham?

Get your seeds now so they're ready by Friday, February 20, 2026.

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Other Plants for Durham

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Growing Sweet Alyssum in Zone 8a

Sweet Alyssum (Lobularia maritima) is a popular garden vegetable. In Durham, North Carolina, which is in USDA Hardiness Zone 8a, you should direct sow seeds around Friday, February 20, 2026.

Your average last frost date is Friday, March 20, 2026. Sweet Alyssum grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.