When to Plant Valerian in Wapello, Iowa (52653)

Location

Wapello, Iowa

ZIP Code

52653

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Planting Calendar

Start Seeds Indoors Saturday, February 28, 2026

Transplant Outdoors Saturday, May 9, 2026

Pro Tip: Start Valerian seeds indoors 8 weeks before your last frost date, then transplant outdoors around Saturday, May 9, 2026.

🌿 Plant Details

Scientific Name Valeriana officinalis

Days to Maturity 365 days

Mature Height 36-60"

Spread 24"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

24" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Valerian in Wapello?

Get your seeds now so they're ready by Saturday, February 28, 2026.

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Vegetable GardenEarthworm attractor

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Growing Valerian in Zone 5b

Valerian (Valeriana officinalis) is a popular garden vegetable. In Wapello, Iowa, which is in USDA Hardiness Zone 5b, you should start seeds indoors around Saturday, February 28, 2026.

Your average last frost date is Saturday, April 25, 2026. Plan to transplant your Valerian seedlings outdoors around Saturday, May 9, 2026, about 2 weeks after your last frost date.