When to Plant Avocado Tree in Fort Harrison, Montana (59636)

Location

Fort Harrison, Montana

ZIP Code

59636

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Planting Calendar

Direct Sow Outdoors Tuesday, June 2, 2026

Pro Tip: Sow Avocado Tree directly outdoors 4 weeks after your last frost date — it needs warm soil.

🌿 Plant Details

Scientific Name Persea americana

Days to Maturity 1825 days

Mature Height 120-360"

Spread 240"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

240" apart

🌱

Planting Depth

2" deep

Seeds typically germinate in 21-42 days

Ready to Plant Avocado Tree in Fort Harrison?

Get your seeds now so they're ready by Tuesday, June 2, 2026.

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Growing Avocado Tree in Zone 4b

Avocado Tree (Persea americana) is a popular garden vegetable. In Fort Harrison, Montana, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, June 2, 2026.

Your average last frost date is Tuesday, May 5, 2026. Avocado Tree grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.