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When to Plant Larkspur in Simi Valley, California (93063)

Location

Simi Valley, California

ZIP Code

93063

USDA Zone

10a

Last Frost

Sunday, January 25, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, December 28, 2025

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

🌿 Plant Details

Scientific Name Consolida ajacis
Days to Maturity 65 days
Mature Height 24-48"
Spread 12"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Moderate (1 inch/week)

↔️

Spacing

9" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 14-21 days

Ready to Plant Larkspur in Simi Valley?

Get your seeds now so they're ready by Sunday, December 28, 2025.

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🤝 Good Companions

CosmosZinniaRose

Other Plants for Simi Valley

Growing Larkspur in Zone 10a

Larkspur (Consolida ajacis) is a popular garden vegetable. In Simi Valley, California, which is in USDA Hardiness Zone 10a, you should direct sow seeds around Sunday, December 28, 2025.

Your average last frost date is Sunday, January 25, 2026. Larkspur grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.