When to Plant Parsley in Lothair, Montana (59461)

Location

Lothair, Montana

ZIP Code

59461

USDA Zone

Last Frost

Friday, May 15, 2026

📅 Planting Calendar

Start Seeds Indoors Friday, March 20, 2026

Transplant Outdoors Friday, May 29, 2026

Pro Tip: Start Parsley seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.

🌿 Plant Details

Scientific Name Petroselinum crispum

Days to Maturity 75 days

Mature Height 12-18"

Spread 12"

Type Leaf

Fruit Size N/A

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (keep moist)

↔️

Spacing

12" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 14-28 days

Ready to Plant Parsley in Lothair?

Get your seeds now so they're ready by Friday, March 20, 2026.

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Growing Parsley in Zone 4a

Parsley (Petroselinum crispum) is a popular garden vegetable. In Lothair, Montana, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, March 20, 2026.

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