When to Plant Sweet Alyssum in Miami, Florida (33178)

Location

Miami, Florida

ZIP Code

33178

USDA Zone

11a

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Direct Sow Outdoors Thursday, December 4, 2025

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 Miami?

Get your seeds now so they're ready by Thursday, December 4, 2025.

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Growing Sweet Alyssum in Zone 11a

Sweet Alyssum (Lobularia maritima) is a popular garden vegetable. In Miami, Florida, which is in USDA Hardiness Zone 11a, you should direct sow seeds around Thursday, December 4, 2025.

Your average last frost date is Thursday, January 1, 2026. Sweet Alyssum grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.