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When to Plant Mustard in San Simon, Arizona (85632)

Location

San Simon, Arizona

ZIP Code

85632

USDA Zone

8a

Last Frost

Friday, March 20, 2026

📅 Planting Calendar

Direct Sow Outdoors Friday, February 6, 2026

Pro Tip: Mustard can be directly sown outdoors. Plant 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Brassica juncea
Days to Maturity 56 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

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Other Plants for San Simon

Growing Mustard in Zone 8a

Mustard (Brassica juncea) is a popular garden vegetable. In San Simon, Arizona, which is in USDA Hardiness Zone 8a, you should direct sow seeds around Friday, February 6, 2026.

Your average last frost date is Friday, March 20, 2026. Mustard grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.