Blog

When to Plant Valerian in Hartley County, TX

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.

Hartley County, Texas is in USDA Zone 6b. The average last spring frost is April 23 and the first fall frost is October 17, giving you a growing season of approximately 177 days.

At an elevation of 4,344 feet, Hartley County receives approximately 46.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Valerian may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Valerian will need more frequent watering and organic matter to retain nutrients.

Hartley County, TX (Zone 6b) Moderate season
177 days
Last Spring Frost April 23
177 growing days
First Fall Frost October 17

Hartley County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 23 🍅 Harvest: Aug 27 – Nov 5
Recommended (50%) ✗ May not fit
Transplant: Apr 30 🍅 Harvest: Sep 3 – Nov 12
Safe Start (90%) ✗ May not fit
Transplant: May 12 🍅 Harvest: Sep 15 – Nov 24

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
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 381 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Valerian needs ~3,300 GDD — county provides 3,894 GDD Good fit

Valerian Planting Timeline โ€” Hartley County, TX

Valerian Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 โ€“ May 14
Harvest September 3 Sep 3 โ€“ Nov 12

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

177 days

Growing Tips for Hartley 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 Hartley County, TX?

Hartley County is in Zone 6b with an average last frost of April 23. Plan your Valerian planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hartley County, TX?

Hartley County, Texas is in USDA Hardiness Zone 6b. The average last spring frost is April 23 and first fall frost is October 17.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hartley 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 Hartley County, TX. Local conditions may vary. Last updated: April 2026.