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When to Plant Valerian in Mason County, WV

Mason County, West Virginia Zone 6b April

April to-do list for Mason County, West Virginia

April is a pivotal month for Mason 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 27
Avg. first frost October 19
Soil temp (4") 44°F
Watering Moderate
Pest pressure Low
Daylight 13 hrs
Coming up in May — start thinking about
  • Transplants going out: valerian

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Valerian is a tall perennial herb with fragrant white or pink flower clusters, valued for its root which is used as a natural sleep aid. It attracts pollinators and earthworms.

Mason County, West Virginia is in USDA Zone 6b. The average last spring frost is April 27 and the first fall frost is October 19, giving you a growing season of approximately 175 days.

At an elevation of 3,198 feet, Mason County receives approximately 43.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Valerian during the growing season.

Mason County, WV (Zone 6b) Moderate season
175 days
Last Spring Frost April 27
175 growing days
First Fall Frost October 19
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Mason County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 26 🍅 Harvest: Aug 30 – Nov 8
Recommended (50%) ✗ May not fit
Transplant: May 4 🍅 Harvest: Sep 7 – Nov 16
Safe Start (90%) ✗ May not fit
Transplant: May 24 🍅 Harvest: Sep 27 – Dec 6

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 Mason County

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

Soil pH

Your soil pH (5.3–6.5) overlaps with Valerian's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Valerian.

How to Plant Valerian

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Valerian

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

Month Valerian Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 3.4" 0.9" 💧 Light watering
Jun 4.3" 3.6" 0.7" 💧 Light watering
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.1" 0.2" 💧 Light watering
Sep 4.3" 3.1" 1.2" 💧 Light watering
Oct 4.3" 3" 1.3" 💧 Light watering
Nov 3.1" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

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

Valerian 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.

Valerian needs ~2,175 GDD — county provides 2,537 GDD Good fit

Valerian Planting Timeline — Mason County, WV

Valerian Planting Calendar

Activity When Date Range
Transplant Outdoors May 4 May 4 – May 18
Harvest September 7 Sep 7 – Nov 16

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

175 days in Mason County

Growing Tips for Valerian in Mason County

Direct sow Valerian outdoors after April 27 in Mason County when soil has warmed and frost danger has passed.

Your 175.0-day growing season in Mason County is tight for Valerian (120.0-180.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Start seeds indoors and transplant after last frost. Harvest roots in fall of the second year. Deadhead flowers unless you want self-seeding. Cats are attracted to valerian root.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Valerian in Mason County, WV?

Mason County is in Zone 6b with an average last frost of April 27. Plan your Valerian planting based on this frost date — see the calendar above for exact timing.

What planting zone is Mason County, WV?

Mason County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 27 and first fall frost is October 19.

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Your Mason County Garden Planner — Free

A 24-page printable planner built for Mason 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 Mason County, WV. Local conditions may vary. Last updated: April 2026.

Sources & credits

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