Blog

When to Plant Valerian in Owsley County, KY

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.

Owsley County, Kentucky is in USDA Zone 6b. The average last spring frost is April 22 and the first fall frost is October 21, giving you a growing season of approximately 182 days.

At an elevation of 1,434 feet, Owsley County receives approximately 49.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Valerian during the growing season.

Owsley County, KY (Zone 6b) Moderate season
182 days
Last Spring Frost April 22
182 growing days
First Fall Frost October 21

Owsley County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 21 🍅 Harvest: Aug 25 – Nov 3
Recommended (50%) ✗ May not fit
Transplant: Apr 29 🍅 Harvest: Sep 2 – Nov 11
Safe Start (90%) ✗ May not fit
Transplant: May 16 🍅 Harvest: Sep 19 – Nov 28

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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Valerian needs ~2,400 GDD — county provides 2,912 GDD Good fit

Valerian Planting Timeline โ€” Owsley County, KY

Valerian Planting Calendar

Activity When Date Range
Transplant Outdoors April 29 Apr 29 โ€“ May 13
Harvest September 2 Sep 2 โ€“ Nov 11

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May Transplant Outdoors
June โ€”
July โ€”
August โ€”
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

120โ€“180 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 6b

Growing Season

182 days

Growing Tips for Owsley County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Valerian in Owsley County, KY?

Owsley County is in Zone 6b with an average last frost of April 22. Plan your Valerian planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Owsley County, KY?

Owsley County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 22 and first fall frost is October 21.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Owsley County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Owsley County, KY. Local conditions may vary. Last updated: April 2026.