When to Plant Hollyhock in Bowbells, North Dakota (58721)

Location

Bowbells, North Dakota

ZIP Code

58721

USDA Zone

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, April 3, 2026

Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Hollyhock seeds indoors 6 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.

🌿 Plant Details

Scientific Name Alcea rosea

Days to Maturity 365 days

Mature Height 48-96"

Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 10-14 days

Ready to Plant Hollyhock in Bowbells?

Get your seeds now so they're ready by Friday, April 3, 2026.

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Growing Hollyhock in Zone 4a

Hollyhock (Alcea rosea) is a popular garden vegetable. In Bowbells, North Dakota, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, April 3, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Hollyhock seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.