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When to Plant Horehound in Harrison County, TX

Horehound is a woolly, drought-tolerant perennial herb traditionally used for cough remedies and candy. It has a distinctive bitter, menthol-like flavor.

Harrison County, Texas is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 14, giving you a growing season of approximately 246 days.

At an elevation of 168 feet, Harrison County receives approximately 63.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96Β°F, so Horehound may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Horehound will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Horehound root diseases.

Harrison County, TX (Zone 8a) Long season
246 days
Last Spring Frost March 13
246 growing days
First Fall Frost November 14

Harrison County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Monthly Watering Guide for Horehound

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

Month Horehound Needs Rainfall You Supplement Action
Jan β€” 1.5" 0" ❄️ Dormant
Feb β€” 1.9" 0" ❄️ Dormant
Mar 4.3" 4.4" 0" βœ… Rainfall sufficient
Apr 4.3" 6" 0" βœ… Rainfall sufficient
May 4.3" 9.7" 0" βœ… Rainfall sufficient
Jun 4.3" 11" 0" βœ… Rainfall sufficient
Jul 4.3" 7.9" 0" βœ… Rainfall sufficient
Aug 4.3" 7.3" 0" βœ… Rainfall sufficient
Sep 4.3" 6.3" 0" βœ… Rainfall sufficient
Oct 4.3" 4" 0.3" πŸ’§ Light watering
Nov 4.3" 2.3" 2" πŸ’§ Light watering
Dec β€” 1.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Harrison County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Horehound Planting Timeline β€” Harrison County, TX

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors March 20 Mar 20 – Apr 3
Harvest June 5 Jun 5 – Jul 31

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Low β€” drought tolerant

πŸ“… Days to Maturity

75–90 days

πŸ§ͺ Soil pH

Needs 6–8 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

246 days in Harrison County

Growing Tips for Harrison County

Direct sow or start from divisions. Thrives in poor, dry soil. Harvest stems just before flowering. Deadhead to prevent aggressive self-seeding. Very drought-tolerant once established.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Horehound in Harrison County, TX?

Harrison County is in Zone 8a with an average last frost of March 13. Plan your Horehound planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Harrison County, TX?

Harrison County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 14.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Harrison County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Harrison County, TX. Local conditions may vary. Last updated: April 2026.