When to Plant Persimmon Tree in Box Elder, Montana (59521)

Location

Box Elder, Montana

ZIP Code

59521

USDA Zone

Last Frost

Friday, May 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Friday, May 1, 2026

Based on last frost Friday, May 15, 2026 · Zone 4a

Pro tip: Sow Persimmon Tree directly outdoors 2 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Diospyros kaki

Days to Maturity 1460 days

Mature Height 120-240"

Spread 180"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Low to Moderate

↔️

Spacing

180" apart

🌱

Planting Depth

6" deep

Seeds typically germinate in 42-90 days

Ready to Plant Persimmon Tree in Box Elder?

Get your seeds now so they're ready by Friday, May 1, 2026.

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🤝 Good Companions

Native Plants

🤝

Full Companion Planting Guide for Persimmon Tree

See which plants help Persimmon Tree thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌿 Fruit Tree Fertilizer 🕸️ Garden Netting 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Extract seeds from fully ripe, soft fruit in fall.

Processing

Clean off pulp, cold-stratify for 3 months in damp medium in the fridge, then plant in spring.

Seed Viability

Up to 1 year when stored cool, dark, and dry.

Pro Tip

Some persimmons are dioecious — you may need both male and female plants to produce fruit.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 0 plants of Persimmon Tree. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Persimmon Tree in Box Elder, Montana? +

In Box Elder (Zone 4a), direct sow Persimmon Tree outdoors around Friday, May 1, 2026.

What is the last frost date for Box Elder, Montana? +

The average last spring frost date for Box Elder, Montana (ZIP 59521) is around Friday, May 15, 2026. This is based on NOAA climate normals for USDA Zone 4a.

How long does Persimmon Tree take to grow? +

Persimmon Tree typically matures in about 1460 days from direct sowing. In Box Elder, that means you can expect harvest around Friday, May 1, 2026 plus 1460 days.

Should I start Persimmon Tree indoors or direct sow in Montana? +

Persimmon Tree does best when direct sown outdoors. In Box Elder, sow directly around Friday, May 1, 2026.

📚 More Persimmon Tree Planting Guides

🗺️

Persimmon Tree in Montana

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4a Persimmon Tree Guide

All cities in your zone · Avg dates

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Growing Persimmon Tree in Zone 4a

Persimmon Tree (Diospyros kaki) is a popular garden vegetable. In Box Elder, Montana, which is in USDA Hardiness Zone 4a, you should direct sow seeds around Friday, May 1, 2026.

Your average last frost date is Friday, May 15, 2026. Persimmon Tree grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.