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When to Plant Cranberries in Marshall County, WV

Marshall County, West Virginia Zone 6b May

May in Marshall County, West Virginia — your action list

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 23
Avg. first frost October 20
Soil temp (4") 61°F
Watering Low
Pest pressure Low
Daylight 14.2 hrs
  1. Move cranberries from tray to bed

    Frost risk is low now in Marshall County, West Virginia. If you've been covering beds overnight, you can stop.

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Cranberries are low-growing, vine-like shrubs that produce tart red berries in fall. They grow in acidic, boggy conditions and are surprisingly easy to cultivate.

Marshall County, West Virginia is in USDA Zone 6b. The average last spring frost is April 23 and the first fall frost is October 20, giving you a growing season of approximately 180 days.

At an elevation of 1,430 feet, Marshall County receives approximately 51.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Cranberries during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cranberries root diseases.

Marshall County, WV (Zone 6b) Moderate season
180 days
Last Spring Frost April 23
180 growing days
First Fall Frost October 20
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Marshall County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 5
Recommended (50%) ✓ Fits season
Transplant: May 14
Safe Start (90%) ✓ Fits season
Transplant: Jun 3

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 Marshall County

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

Soil pH

Your soil pH (5.7–6.9) is more alkaline than Cranberries prefers (4.0–5.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Cranberries.

How to Plant Cranberries

36"
Between Plants
48"
Between Rows

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.2″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 569 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Cranberries

Cranberries needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cranberries Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 6.5" 3.7" 2.8" 💧 Light watering
May 6.5" 4" 2.5" 💧 Light watering
Jun 6.5" 5.1" 1.4" 💧 Light watering
Jul 6.5" 4.9" 1.6" 💧 Light watering
Aug 6.5" 4.5" 2" 💧 Light watering
Sep 6.5" 4.4" 2.1" 💧 Light watering
Oct 6.5" 3.6" 2.9" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 4.6" 0" ❄️ Dormant

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

Cranberries 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.

Cranberries needs ~13,231 GDD — county provides 2,610 GDD May not mature

Cranberries Planting Timeline — Marshall County, WV

Cranberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 14 May 14 – May 28

· 36" apart · Rows 48" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June
July
August
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 4–5.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

180 days in Marshall County

Growing Tips for Cranberries in Marshall County

Direct sow Cranberries outdoors after April 23 in Marshall County when soil has warmed and frost danger has passed.

Your 180.0-day growing season in Marshall County is tight for Cranberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Create an acidic, consistently moist bed with peat moss. Cranberries do not need to be flooded to grow; flooding is only used for commercial harvesting. Mulch with sand in early spring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cranberries in Marshall County, WV?

Marshall County is in Zone 6b with an average last frost of April 23. Plan your Cranberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Marshall County, WV?

Marshall County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 23 and first fall frost is October 20.

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Your Marshall County Garden Planner — Free

A 24-page printable planner built for Marshall 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 Marshall 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.