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When to Plant Cilantro in Chester, Idaho (83421)

Location

Chester, Idaho

ZIP Code

83421

USDA Zone

5a

Last Frost

Sunday, May 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, April 12, 2026

Pro Tip: Cilantro can be directly sown outdoors. Plant 4 weeks before your last frost date.

🌿 Plant Details

Scientific Name Coriandrum sativum
Days to Maturity 45 days
Mature Height 12-24"
Spread 6"
Type Leaf
Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Partial Shade to Full Sun

💧

Water

Regular (keep moist)

↔️

Spacing

6" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-10 days

🤝 Good Companions

AniseTomatoSpinachBean

⚠️ Avoid Planting Near

Fennel

Other Plants for Chester

Growing Cilantro in Zone 5a

Cilantro (Coriandrum sativum) is a popular garden vegetable. In Chester, Idaho, which is in USDA Hardiness Zone 5a, you should direct sow seeds around Sunday, April 12, 2026.

Your average last frost date is Sunday, May 10, 2026. Cilantro grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.