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When to Plant Radish in Ellis County, KS

Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Ellis County, Kansas is in USDA Zone 6a. The average last spring frost is April 24 and the first fall frost is October 15, giving you a growing season of approximately 174 days.

At an elevation of 664 feet, Ellis County receives approximately 20.2 inches of rainfall annually with predominantly loam soil. Summer highs average 90ยฐF, providing good warmth for Radish during the growing season.

Ellis County, KS (Zone 6a) Moderate season
174 days
Last Spring Frost April 24
174 growing days
First Fall Frost October 15

Ellis County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Transplant: Apr 17 🍅 Harvest: May 15 – Jun 5
Recommended (50%) ✓ Fits season (125 days to spare)
Transplant: Apr 24 🍅 Harvest: May 22 – Jun 12
Safe Start (90%) ✓ Fits season (121 days to spare)
Transplant: May 11 🍅 Harvest: Jun 8 – Jun 29

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 952 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Radish needs ~499 GDD — county provides 3,045 GDD Excellent fit

Radish Planting Timeline โ€” Ellis County, KS

Radish Planting Calendar

Activity When Date Range
Direct Sow April 10 Apr 10 โ€“ May 1
Fall Sowing August 6 Aug 6 โ€“ Aug 20
Harvest May 8 May 8 โ€“ May 29

Plant 0.5" deep ยท 2" apart ยท Rows 6" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Direct Sow
May Direct Sow Harvest
June โ€”
July โ€”
August Fall Sowing
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

22โ€“35 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6a

Growing Season

174 days

Growing Tips for Ellis County

Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Level Up Your Garden

Frequently Asked Questions

When should I plant Radish in Ellis County, KS?

Ellis County is in Zone 6a with an average last frost of April 24. Plan your Radish planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ellis County, KS?

Ellis County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 24 and first fall frost is October 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ellis County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Ellis County, KS. Local conditions may vary. Last updated: April 2026.