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When to Plant Horehound in Stonewall County, TX

Stonewall County, Texas Zone 8a May

What to do in May

Each item below is timed to Stonewall County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 24
Avg. first frost November 14
Soil temp (4") 63°F
Watering High
Pest pressure Moderate
Daylight 13.7 hrs
A few tasks this May that'll pay off in June
  • First harvests: horehound

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

Stonewall County, Texas is in USDA Zone 8a. The average last spring frost is March 24 and the first fall frost is November 14, giving you a growing season of approximately 235 days.

At an elevation of 2,417 feet, Stonewall County receives approximately 57.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Horehound may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — 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.

Stonewall County, TX (Zone 8a) Long season
235 days
Last Spring Frost March 24
235 growing days
First Fall Frost November 14
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Stonewall County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (92 days to spare)
Transplant: Mar 24 🍅 Harvest: Jun 9 – Aug 4
Recommended (50%) ✓ Fits season (95 days to spare)
Transplant: Mar 31 🍅 Harvest: Jun 16 – Aug 11
Safe Start (90%) ✓ Fits season (85 days to spare)
Transplant: Apr 22 🍅 Harvest: Jul 8 – Sep 2

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 Stonewall County

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

Soil pH

Your soil pH (7.2–8.2) overlaps with Horehound's range (6.0–8.0), though not a perfect match.

Soil Texture

Sandy soil in Stonewall County warms quickly in spring but drains fast. Horehound will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Horehound.

How to Plant Horehound

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

Succession Planting Horehound

3
successive plantings in your 235-day season

Sow every 8.6 weeks. Last sowing by Aug 16 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Horehound

Horehound needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Horehound Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 2.2" 3.4" 0" ✅ Rainfall sufficient
Apr 2.2" 2.1" 0.1" 💧 Light watering
May 2.2" 1.3" 0.9" 💧 Light watering
Jun 2.2" 2.3" 0" ✅ Rainfall sufficient
Jul 2.2" 10" 0" ✅ Rainfall sufficient
Aug 2.2" 12.4" 0" ✅ Rainfall sufficient
Sep 2.2" 7.7" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 3.4" 0" ✅ Rainfall sufficient
Dec 4.1" 0" ❄️ Dormant

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

Horehound 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.

Horehound needs ~1,939 GDD — county provides 5,522 GDD Excellent fit

Horehound Planting Timeline — Stonewall County, TX

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors March 31 Mar 31 – Apr 14
Harvest June 16 Jun 16 – Aug 11

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

75–90 days

🧪 Soil pH

Needs 6–8 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

235 days in Stonewall County

Growing Tips for Horehound in Stonewall County

Direct sow Horehound outdoors after March 24 in Stonewall County when soil has warmed and frost danger has passed.

Sandy soil in Stonewall County dries quickly — mulch Horehound with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 98°F in Stonewall County, provide afternoon shade for Horehound and water deeply in the morning.

General growing tips

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 Stonewall County, TX?

Stonewall County is in Zone 8a with an average last frost of March 24. Plan your Horehound planting based on this frost date — see the calendar above for exact timing.

What planting zone is Stonewall County, TX?

Stonewall County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 24 and first fall frost is November 14.

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Your Stonewall County Garden Planner — Free

A 24-page printable planner built for Stonewall County (Zone 8a). 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 Stonewall County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

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