When to Plant Verbena in Broomfield, Colorado (80021)

Location

Broomfield, Colorado

ZIP Code

80021

USDA Zone

Last Frost

Monday, April 20, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, February 23, 2026

Transplant Outdoors Monday, May 4, 2026

Pro Tip: Start Verbena seeds indoors 8 weeks before your last frost date, then transplant outdoors around Monday, May 4, 2026.

🌿 Plant Details

Scientific Name Verbena hybrida

Days to Maturity 85 days

Mature Height 6-18"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Verbena in Broomfield?

Get your seeds now so they're ready by Monday, February 23, 2026.

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🤝 Good Companions

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Growing Verbena in Zone 6a

Verbena (Verbena hybrida) is a popular garden vegetable. In Broomfield, Colorado, which is in USDA Hardiness Zone 6a, you should start seeds indoors around Monday, February 23, 2026.

Your average last frost date is Monday, April 20, 2026. Plan to transplant your Verbena seedlings outdoors around Monday, May 4, 2026, about 2 weeks after your last frost date.