When to Plant Catnip in San Jose, California (95103)

Location

San Jose, California

ZIP Code

95103

USDA Zone

Last Frost

Tuesday, February 10, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, December 16, 2025

Transplant Outdoors Tuesday, February 24, 2026

Pro Tip: Start Catnip seeds indoors 8 weeks before your last frost date, then transplant outdoors around Tuesday, February 24, 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 San Jose?

Get your seeds now so they're ready by Tuesday, December 16, 2025.

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TomatoPepperSquashPumpkin

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Growing Catnip in Zone 9b

Catnip (Nepeta cataria) is a popular garden vegetable. In San Jose, California, which is in USDA Hardiness Zone 9b, you should start seeds indoors around Tuesday, December 16, 2025.

Your average last frost date is Tuesday, February 10, 2026. Plan to transplant your Catnip seedlings outdoors around Tuesday, February 24, 2026, about 2 weeks after your last frost date.