When to Plant Valerian in Longlake, South Dakota (57457)

Location

Longlake, South Dakota

ZIP Code

57457

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, March 10, 2026

Transplant Outdoors Tuesday, May 19, 2026

Pro Tip: Start Valerian seeds indoors 8 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 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 Longlake?

Get your seeds now so they're ready by Tuesday, March 10, 2026.

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Vegetable GardenEarthworm attractor

Other Plants for Longlake

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Growing Valerian in Zone 4b

Valerian (Valeriana officinalis) is a popular garden vegetable. In Longlake, South Dakota, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, March 10, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Valerian seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.