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When to Plant Watercress in Cabell County, WV

Cabell County, West Virginia Zone 7a May

May to-do list for Cabell County, West Virginia

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Cabell County, West Virginia.

Avg. last frost April 20
Avg. first frost October 22
Soil temp (4") 54°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
  1. Time to start watercress inside

    Label every cell. You will absolutely forget which is which otherwise.

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  • First harvests: watercress

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Watercress is a semi-aquatic plant with a peppery, tangy flavor rich in vitamins and minerals. It grows naturally along streams and can be cultivated in containers with standing water.

Cabell County, West Virginia is in USDA Zone 7a. The average last spring frost is April 20 and the first fall frost is October 22, giving you a growing season of approximately 185 days.

At an elevation of 3,444 feet, Cabell County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Watercress during the growing season.

Cabell County, WV (Zone 7a) Moderate season
185 days
Last Spring Frost April 20
185 growing days
First Fall Frost October 22

Cabell County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (109 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: May 26 – Jun 30
Recommended (50%) ✓ Fits season (108 days to spare)
Start indoors: Mar 16 Transplant: Apr 20 🍅 Harvest: Jun 1 – Jul 6
Safe Start (90%) ✓ Fits season (99 days to spare)
Start indoors: Apr 5 Transplant: May 10 🍅 Harvest: Jun 21 – Jul 26

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 Cabell County

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

Soil pH

Your soil pH (5.5–6.8) is more acidic than Watercress prefers (6.5–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Watercress.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Watercress.

How to Plant Watercress

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 Watercress

5
successive plantings in your 185-day season

Sow every 4.6 weeks. Last sowing by Aug 23 to harvest before frost.

For a dedicated fall crop, sow by Aug 13.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 39 gal / 100 sq ft

Monthly Watering Guide for Watercress

Watercress 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 Watercress Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 3.7" 0" ❄️ Dormant
Apr 6.5" 3.6" 2.9" 💧 Light watering
May 6.5" 3.3" 3.2" 💧 Light watering
Jun 6.5" 4.1" 2.4" 💧 Light watering
Jul 6.5" 5.2" 1.3" 💧 Light watering
Aug 6.5" 4" 2.5" 💧 Light watering
Sep 6.5" 3.7" 2.8" 💧 Light watering
Oct 6.5" 2.5" 4" 🚿 Regular watering
Nov 3.7" 0" ❄️ Dormant
Dec 3.9" 0" ❄️ Dormant

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

Watercress 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.

Watercress needs ~762 GDD — county provides 2,821 GDD Excellent fit

Watercress Planting Timeline — Cabell County, WV

Watercress Planting Calendar

Activity When Date Range
Start Indoors March 16 Mar 16 – Mar 30
Transplant Outdoors April 20 Apr 20 – May 4
Direct Sow April 6 Apr 6 – Apr 27
Harvest June 1 Jun 1 – Jul 6
Fall Sowing August 13 Aug 13 – Aug 27

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

185 days in Cabell County

Growing Tips for Watercress in Cabell County

Direct sow Watercress outdoors after April 20 in Cabell County when soil has warmed and frost danger has passed.

Your generous 185.0-day season in Cabell County allows multiple plantings of Watercress. Sow every 20.0 days for continuous harvest.

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

General growing tips

Grow in containers with trays of water kept fresh. Provide partial shade and cool conditions. Harvest stems by cutting above water level. Replace water frequently to prevent stagnation.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Watercress in Cabell County, WV?

Cabell County is in Zone 7a with an average last frost of April 20. Plan your Watercress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cabell County, WV?

Cabell County, West Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 20 and first fall frost is October 22.

🌱

Your Cabell County Garden Planner — Free

A 24-page printable planner built for Cabell County (Zone 7a). 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 Cabell County, WV. Local conditions may vary. Last updated: May 2026.

Sources & credits

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