When to Plant Turnip in Grays River, Washington (98621)

Location

Grays River, Washington

ZIP Code

98621

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Sunday, February 1, 2026

Based on last frost Sunday, March 15, 2026 · Zone 8b

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 Grays River?

Get your seeds now so they're ready by Sunday, February 1, 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 Grays River, Washington? +

In Grays River (Zone 8b), direct sow Turnip outdoors around Sunday, February 1, 2026.

What is the last frost date for Grays River, Washington? +

The average last spring frost date for Grays River, Washington (ZIP 98621) is around Sunday, March 15, 2026. This is based on NOAA climate normals for USDA Zone 8b.

How long does Turnip take to grow? +

Turnip typically matures in about 91 days from direct sowing. In Grays River, that means you can expect harvest around Sunday, February 1, 2026 plus 91 days.

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

Turnip does best when direct sown outdoors. In Grays River, sow directly around Sunday, February 1, 2026.

📚 More Turnip Planting Guides

🗺️

Turnip in Washington

Zone-by-zone breakdown · Full state guide

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Zone 8b Turnip Guide

All cities in your zone · Avg dates

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Growing Turnip in Zone 8b

Turnip (Brassica rapa) is a popular garden vegetable. In Grays River, Washington, which is in USDA Hardiness Zone 8b, you should direct sow seeds around Sunday, February 1, 2026.

Your average last frost date is Sunday, March 15, 2026. Turnip grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.