When to Plant Turnip in Moorcroft, Wyoming (82721)

Location

Moorcroft, Wyoming

ZIP Code

82721

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Tuesday, March 24, 2026

Based on last frost Tuesday, May 5, 2026 · Zone 4b

Pro tip: Sow Turnip directly outdoors 6 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Brassica rapa

Days to Maturity 91 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 1-7 days

Ready to Plant Turnip in Moorcroft?

Get your seeds now so they're ready by Tuesday, March 24, 2026.

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🛠️ Supplies You'll Need

🪵 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 roots to overwinter and harvest seed pods in year 2 when dry.

Processing

Thresh dried stalks, winnow seeds from pod fragments.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Brassica rapa — crosses with bok choy, napa cabbage, and other rapa crops. Isolate by 300 feet.

Frequently Asked Questions

When should I plant Turnip in Moorcroft, Wyoming? +

In Moorcroft (Zone 4b), direct sow Turnip outdoors around Tuesday, March 24, 2026.

What is the last frost date for Moorcroft, Wyoming? +

The average last spring frost date for Moorcroft, Wyoming (ZIP 82721) is around Tuesday, May 5, 2026. This is based on NOAA climate normals for USDA Zone 4b.

How long does Turnip take to grow? +

Turnip typically matures in about 91 days from direct sowing. In Moorcroft, that means you can expect harvest around Tuesday, March 24, 2026 plus 91 days.

Should I start Turnip indoors or direct sow in Wyoming? +

Turnip does best when direct sown outdoors. In Moorcroft, sow directly around Tuesday, March 24, 2026.

📚 More Turnip Planting Guides

🗺️

Turnip in Wyoming

Zone-by-zone breakdown · Full state guide

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Zone 4b Turnip Guide

All cities in your zone · Avg dates

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Growing Turnip in Zone 4b

Turnip (Brassica rapa) is a popular garden vegetable. In Moorcroft, Wyoming, which is in USDA Hardiness Zone 4b, you should direct sow seeds around Tuesday, March 24, 2026.

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