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When to Plant Spinach in Thorne Bay, Alaska (99919)

Location

Thorne Bay, Alaska

ZIP Code

99919

USDA Zone

7b

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Sunday, February 22, 2026

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

🌿 Plant Details

Scientific Name Cynara scolymus
Days to Maturity 40 days
Mature Height 6-12"
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

0.5" deep

Seeds typically germinate in 7-14 days

🤝 Good Companions

StrawberryPeaBeanBrassicas

Other Plants for Thorne Bay

Growing Spinach in Zone 7b

Spinach (Cynara scolymus) is a popular garden vegetable. In Thorne Bay, Alaska, which is in USDA Hardiness Zone 7b, you should direct sow seeds around Sunday, February 22, 2026.

Your average last frost date is Sunday, April 5, 2026. Spinach grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.