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When to Plant Daikon in Upshur County, WV

Upshur County, West Virginia Zone 6b May

Top priorities for Upshur County, West Virginia gardeners in May

May is a pivotal month for Upshur County, West Virginia gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 29
Avg. first frost October 18
Soil temp (4") 54°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
Before June arrives, get these ready
  • First harvests: daikon

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Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.

Upshur County, West Virginia is in USDA Zone 6b. The average last spring frost is April 29 and the first fall frost is October 18, giving you a growing season of approximately 172 days.

At an elevation of 3,001 feet, Upshur County receives approximately 44.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Daikon during the growing season.

Upshur County, WV (Zone 6b) Moderate season
172 days
Last Spring Frost April 29
172 growing days
First Fall Frost October 18

Upshur County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Transplant: Apr 24 🍅 Harvest: Jun 19 – Jul 17
Recommended (50%) ✓ Fits season (88 days to spare)
Transplant: Apr 29 🍅 Harvest: Jun 24 – Jul 22
Safe Start (90%) ✓ Fits season (85 days to spare)
Transplant: May 16 🍅 Harvest: Jul 11 – Aug 8

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.

Soil Compatibility in Upshur County

How your county's soil matches Daikon's growing requirements.

Soil pH

Your soil pH (5.3–6.5) overlaps with Daikon's range (5.8–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Upshur County is excellent for Daikon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Daikon.

How to Plant Daikon

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Daikon

4
successive plantings in your 172-day season

Sow every 5.7 weeks. Last sowing by Aug 09 to harvest before frost.

For a dedicated fall crop, sow by Aug 09.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Daikon

Daikon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Daikon Needs Rainfall You Supplement Action
Jan 3.6" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.9" 0" ❄️ Dormant
Apr 4.3" 3" 1.3" 💧 Light watering
May 4.3" 3.2" 1.1" 💧 Light watering
Jun 4.3" 3.6" 0.7" 💧 Light watering
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 3" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Upshur County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Daikon Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Daikon needs ~1,095 GDD — county provides 3,139 GDD Excellent fit

Daikon Planting Timeline — Upshur County, WV

Daikon Planting Calendar

Activity When Date Range
Direct Sow April 15 Apr 15 – May 6
Harvest June 10 Jun 10 – Jul 8
Fall Sowing August 9 Aug 9 – Aug 23

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.8–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

172 days in Upshur County

Growing Tips for Daikon in Upshur County

Direct sow Daikon outdoors after April 29 in Upshur County when soil has warmed and frost danger has passed.

Common pests for Daikon in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Daikon in Upshur County, WV?

Upshur County is in Zone 6b with an average last frost of April 29. Plan your Daikon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Upshur County, WV?

Upshur County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 29 and first fall frost is October 18.

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Your Upshur County Garden Planner — Free

A 24-page printable planner built for Upshur County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Upshur County, WV. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.