When to Plant Eggplant 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 Eggplant seeds indoors 8 weeks before your last frost date, then transplant outdoors around Friday, May 29, 2026.

🌿 Plant Details

Scientific Name Solanum melongena

Days to Maturity 70 days

Mature Height 24-36"

Spread 24"

Type Bush

Fruit Size Medium (4-8 inches)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1 inch/week)

↔️

Spacing

24" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 7-14 days

Ready to Plant Eggplant in Lothair?

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

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🤝 Good Companions

BeanPepperSpinachThyme

⚠️ Avoid Planting Near

Fennel

Other Plants for Lothair

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Growing Eggplant in Zone 4a

Eggplant (Solanum melongena) 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 Eggplant seedlings outdoors around Friday, May 29, 2026, about 2 weeks after your last frost date.