When to Plant Snapdragon in San Diego, California (92147)

Location

San Diego, California

ZIP Code

92147

USDA Zone

11a

Last Frost

Thursday, January 1, 2026

📅 Planting Calendar

Start Seeds Indoors Thursday, November 6, 2025

Transplant Outdoors Thursday, January 15, 2026

Pro Tip: Start Snapdragon seeds indoors 8 weeks before your last frost date, then transplant outdoors around Thursday, January 15, 2026.

🌿 Plant Details

Scientific Name Antirrhinum majus

Days to Maturity 60 days

Mature Height 12-36"

Spread 12"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-21 days

Ready to Plant Snapdragon in San Diego?

Get your seeds now so they're ready by Thursday, November 6, 2025.

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Growing Snapdragon in Zone 11a

Snapdragon (Antirrhinum majus) is a popular garden vegetable. In San Diego, California, which is in USDA Hardiness Zone 11a, you should start seeds indoors around Thursday, November 6, 2025.

Your average last frost date is Thursday, January 1, 2026. Plan to transplant your Snapdragon seedlings outdoors around Thursday, January 15, 2026, about 2 weeks after your last frost date.