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When to Plant Radish in Allakaket, Alaska (99720)

Location

Allakaket, Alaska

ZIP Code

99720

USDA Zone

1a

Last Frost

Monday, June 15, 2026

📅 Planting Calendar

Direct Sow Outdoors Monday, May 4, 2026

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

🌿 Plant Details

Scientific Name Rhaphanus sativus
Days to Maturity 25 days
Mature Height 6-12"
Spread 3"
Type Root
Fruit Size Small (1-2 inches)

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (keep moist)

↔️

Spacing

2" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 3-7 days

🤝 Good Companions

CarrotLettucePeaCucumberSpinach

⚠️ Avoid Planting Near

Hyssop

Other Plants for Allakaket

Growing Radish in Zone 1a

Radish (Rhaphanus sativus) is a popular garden vegetable. In Allakaket, Alaska, which is in USDA Hardiness Zone 1a, you should direct sow seeds around Monday, May 4, 2026.

Your average last frost date is Monday, June 15, 2026. Radish grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.