When to Plant Avocado Tree in Carthage, Illinois (62321)

Location

Carthage, Illinois

ZIP Code

62321

USDA Zone

Last Frost

Monday, April 20, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Monday, May 18, 2026

Based on last frost Monday, April 20, 2026 · Zone 6a

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

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🌿 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 Carthage?

Get your seeds now so they're ready by Monday, May 18, 2026.

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🤝 Good Companions

ComfreyBasil

🤝

Full Companion Planting Guide for Avocado Tree

See which plants help Avocado 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

Use the pit from any ripe avocado — it's ready to sprout immediately.

Processing

Wash pit clean, suspend half-submerged over water with toothpicks, or bury 1 inch deep. Roots in 4–6 weeks.

Pro Tip

Seed-grown avocados take 7–15 years to fruit and won't match the parent variety — but a fun project.

🪴

Raised Bed Planting Guides

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

Frequently Asked Questions

When should I plant Avocado Tree in Carthage, Illinois? +

In Carthage (Zone 6a), direct sow Avocado Tree outdoors around Monday, May 18, 2026.

What is the last frost date for Carthage, Illinois? +

The average last spring frost date for Carthage, Illinois (ZIP 62321) is around Monday, April 20, 2026. This is based on NOAA climate normals for USDA Zone 6a.

How long does Avocado Tree take to grow? +

Avocado Tree typically matures in about 1825 days from direct sowing. In Carthage, that means you can expect harvest around Monday, May 18, 2026 plus 1825 days.

Should I start Avocado Tree indoors or direct sow in Illinois? +

Avocado Tree does best when direct sown outdoors. In Carthage, sow directly around Monday, May 18, 2026.

📚 More Avocado Tree Planting Guides

🗺️

Avocado Tree in Illinois

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 6a Avocado Tree Guide

All cities in your zone · Avg dates

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Growing Avocado Tree in Zone 6a

Avocado Tree (Persea americana) is a popular garden vegetable. In Carthage, Illinois, which is in USDA Hardiness Zone 6a, you should direct sow seeds around Monday, May 18, 2026.

Your average last frost date is Monday, April 20, 2026. Avocado Tree grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.