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When to Plant Radish in Snyder County, PA

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.

Snyder County, Pennsylvania is in USDA Zone 6a. The average last spring frost is April 24 and the first fall frost is October 22, giving you a growing season of approximately 181 days.

At an elevation of 163 feet, Snyder County receives approximately 40.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89ยฐF, providing good warmth for Radish during the growing season.

Snyder County, PA (Zone 6a) Moderate season
181 days
Last Spring Frost April 24
181 growing days
First Fall Frost October 22

Snyder County Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Transplant: Apr 17 🍅 Harvest: May 15 – Jun 5
Recommended (50%) ✓ Fits season (132 days to spare)
Transplant: Apr 24 🍅 Harvest: May 22 – Jun 12
Safe Start (90%) ✓ Fits season (124 days to spare)
Transplant: May 13 🍅 Harvest: Jun 10 – Jul 1

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
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Radish needs ~477 GDD — county provides 3,031 GDD Excellent fit

Radish Planting Timeline โ€” Snyder County, PA

Radish Planting Calendar

Activity When Date Range
Direct Sow April 10 Apr 10 โ€“ May 1
Fall Sowing August 13 Aug 13 โ€“ Aug 27
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

181 days

Growing Tips for Snyder 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 Snyder County, PA?

Snyder 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 Snyder County, PA?

Snyder County, Pennsylvania is in USDA Hardiness Zone 6a. The average last spring frost is April 24 and first fall frost is October 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Snyder 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 Snyder County, PA. Local conditions may vary. Last updated: April 2026.