When to Plant Catnip in Hill City, South Dakota (57745)

Location

Hill City, South Dakota

ZIP Code

57745

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 Catnip seeds indoors 8 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 2026.

🌿 Plant Details

Scientific Name Nepeta cataria

Days to Maturity 90 days

Mature Height 18-36"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Low (less than 1 inch/week)

↔️

Spacing

18" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 7-14 days

Ready to Plant Catnip in Hill City?

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

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TomatoPepperSquashPumpkin

Other Plants for Hill City

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Growing Catnip in Zone 4b

Catnip (Nepeta cataria) is a popular garden vegetable. In Hill City, 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 Catnip seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.