When to Plant Catnip in Bay Saint Louis, Mississippi (39521)

Location

Bay Saint Louis, Mississippi

ZIP Code

39521

USDA Zone

Last Frost

Friday, February 20, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, December 26, 2025

Transplant Outdoors Friday, March 6, 2026

Pro Tip: Start Catnip seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, March 6, 2026.

🌿 Plant Details

Scientific Name Nepeta cataria

Days to Maturity 90 days

Mature Height 18-36"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Low (less than 1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 7-14 days

Ready to Plant Catnip in Bay Saint Louis?

Get your seeds now so they're ready by Friday, December 26, 2025.

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Growing Catnip in Zone 9a

Catnip (Nepeta cataria) is a popular garden vegetable. In Bay Saint Louis, Mississippi, which is in USDA Hardiness Zone 9a, you should start seeds indoors around Friday, December 26, 2025.

Your average last frost date is Friday, February 20, 2026. Plan to transplant your Catnip seedlings outdoors around Friday, March 6, 2026, about 2 weeks after your last frost date.