When to Plant Watermelon Radish in Akron, Ohio (44310)

Location

Akron, Ohio

ZIP Code

44310

USDA Zone

Last Frost

Wednesday, April 15, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Wednesday, March 18, 2026

Based on last frost Wednesday, April 15, 2026 · Zone 6b

Pro tip: Sow Watermelon Radish directly outdoors 4 weeks before your last frost date.

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🌿 Plant Details

Scientific Name Raphanus sativus

Days to Maturity 60 days

Mature Height 6-10"

Spread 4"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

4" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 3-7 days

Ready to Plant Watermelon Radish in Akron?

Get your seeds now so they're ready by Wednesday, March 18, 2026.

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🤝 Good Companions

CarrotSpinachLettucePea

⚠️ Avoid Planting Near

Hyssop

🤝

Full Companion Planting Guide for Watermelon Radish

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

🛠️ Supplies You'll Need

🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟢 Easy

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow plants to bolt and seed pods to fully dry and turn tan on the stalk.

Processing

Thresh dried pods, winnow to remove chaff, dry seeds 1 week before storing.

Seed Viability

Up to 5 years when stored cool, dark, and dry.

Pro Tip

Will cross with other radish varieties — isolate by 1000 feet to maintain the distinctive interior color.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 9 per sq ft of Watermelon Radish. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Watermelon Radish in Akron, Ohio? +

In Akron (Zone 6b), direct sow Watermelon Radish outdoors around Wednesday, March 18, 2026.

What is the last frost date for Akron, Ohio? +

The average last spring frost date for Akron, Ohio (ZIP 44310) is around Wednesday, April 15, 2026. This is based on NOAA climate normals for USDA Zone 6b.

How long does Watermelon Radish take to grow? +

Watermelon Radish typically matures in about 60 days from direct sowing. In Akron, that means you can expect harvest around Wednesday, March 18, 2026 plus 60 days.

Should I start Watermelon Radish indoors or direct sow in Ohio? +

Watermelon Radish does best when direct sown outdoors. In Akron, sow directly around Wednesday, March 18, 2026.

📚 More Watermelon Radish Planting Guides

🗺️

Watermelon Radish in Ohio

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 6b Watermelon Radish Guide

All cities in your zone · Avg dates

→

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Growing Watermelon Radish in Zone 6b

Watermelon Radish (Raphanus sativus) is a popular garden vegetable. In Akron, Ohio, which is in USDA Hardiness Zone 6b, you should direct sow seeds around Wednesday, March 18, 2026.

Your average last frost date is Wednesday, April 15, 2026. Watermelon Radish grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.