Blog

When to Plant Horehound in Archer County, TX

Archer County, Texas Zone 8a May

Your May gardening checklist

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

Avg. last frost March 20
Avg. first frost November 15
Soil temp (4") 64°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
Get ahead of June
  • First harvests: horehound

Instant PDF download. No spam, unsubscribe any time.

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

Archer County, Texas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 15, giving you a growing season of approximately 240 days.

At an elevation of 2,151 feet, Archer County receives approximately 59.4 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Horehound during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Horehound root diseases.

Archer County, TX (Zone 8a) Long season
240 days
Last Spring Frost March 20
240 growing days
First Fall Frost November 15

Archer County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Transplant: Mar 19 🍅 Harvest: Jun 4 – Jul 30
Recommended (50%) ✓ Fits season (100 days to spare)
Transplant: Mar 27 🍅 Harvest: Jun 12 – Aug 7
Safe Start (90%) ✓ Fits season (88 days to spare)
Transplant: Apr 20 🍅 Harvest: Jul 6 – Aug 31

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 Archer County

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

Soil pH

Your soil pH (6.4–7.5) is within Horehound's preferred range (6.0–8.0).

Soil Texture

The loam soil in Archer County is excellent for Horehound — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Horehound.

How to Plant Horehound

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

Succession Planting Horehound

3
successive plantings in your 240-day season

Sow every 8.6 weeks. Last sowing by Aug 17 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 1.4" 0" ❄️ Dormant
Feb 2.3" 0" ❄️ Dormant
Mar 2.2" 3.6" 0" ✅ Rainfall sufficient
Apr 2.2" 6.8" 0" ✅ Rainfall sufficient
May 2.2" 8.3" 0" ✅ Rainfall sufficient
Jun 2.2" 10" 0" ✅ Rainfall sufficient
Jul 2.2" 6.9" 0" ✅ Rainfall sufficient
Aug 2.2" 7.1" 0" ✅ Rainfall sufficient
Sep 2.2" 5.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 2.3" 0" ✅ Rainfall sufficient
Dec 1.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Archer 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 ~1,629 GDD — county provides 4,740 GDD Excellent fit

Horehound Planting Timeline — Archer County, TX

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors March 27 Mar 27 – Apr 10
Harvest June 12 Jun 12 – Aug 7

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

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: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

240 days in Archer County

Growing Tips for Horehound in Archer County

Direct sow Horehound outdoors after March 20 in Archer County when soil has warmed and frost danger has passed.

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 Archer County, TX?

Archer County is in Zone 8a with an average last frost of March 20. Plan your Horehound planting based on this frost date — see the calendar above for exact timing.

What planting zone is Archer County, TX?

Archer County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 15.

🌱

Your Archer County Garden Planner — Free

A 24-page printable planner built for Archer 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Archer 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.