When to Plant Leek in Crockett Mills, Tennessee (38021)

Location

Crockett Mills, Tennessee

ZIP Code

38021

USDA Zone

Last Frost

Sunday, April 5, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Sunday, January 25, 2026

Transplant Outdoors

Sunday, April 19, 2026

Based on last frost Sunday, April 5, 2026 · Zone 7b

Pro tip: Start Leek seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, April 19, 2026.

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🌿 Plant Details

Scientific Name Allium ampeloprasum

Days to Maturity 120 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

Ready to Plant Leek in Crockett Mills?

Get your seeds now so they're ready by Sunday, January 25, 2026.

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🤝 Good Companions

CeleryAppleCarrot

⚠️ Avoid Planting Near

Swiss Chard

🤝

Full Companion Planting Guide for Leek

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Biennial — allow flowering in year 2. Harvest seed heads when seeds are black and ripe.

Processing

Cut seed heads into bags when most seeds are black, dry 1 week, thresh gently.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Leeks cross-pollinate with onions via insects. Isolate by at least a mile for truly pure seed.

Frequently Asked Questions

When should I plant Leek in Crockett Mills, Tennessee? +

In Crockett Mills (Zone 7b), start Leek seeds indoors around Sunday, January 25, 2026 and transplant outdoors around Sunday, April 19, 2026.

What is the last frost date for Crockett Mills, Tennessee? +

The average last spring frost date for Crockett Mills, Tennessee (ZIP 38021) is around Sunday, April 5, 2026. This is based on NOAA climate normals for USDA Zone 7b.

How long does Leek take to grow? +

Leek typically matures in about 120 days from transplanting. In Crockett Mills, that means you can expect harvest around Sunday, April 19, 2026 plus 120 days.

Should I start Leek indoors or direct sow in Tennessee? +

Leek should be started indoors 10 weeks before your last frost date. In Crockett Mills, that means starting around Sunday, January 25, 2026.

📚 More Leek Planting Guides

🗺️

Leek in Tennessee

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 7b Leek Guide

All cities in your zone · Avg dates

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Growing Leek in Zone 7b

Leek (Allium ampeloprasum) is a popular garden vegetable. In Crockett Mills, Tennessee, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, January 25, 2026.

Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Leek seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.