Blog

When to Plant Horehound in Grady County, GA

Grady County, Georgia Zone 9a May

Your May game plan for Grady County, Georgia

Your garden in Grady County, Georgia is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 5
Avg. first frost November 21
Soil temp (4") 73°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Bring in the horehound

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

To set up a strong June, finish these tasks
  • 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.

Grady County, Georgia is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 21, giving you a growing season of approximately 261 days.

At an elevation of 323 feet, Grady County receives approximately 48.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Horehound during the growing season. Clay soil retains moisture well for Horehound, but amend with compost to improve drainage and prevent root rot.

Grady County, GA (Zone 9a) Long season
261 days
Last Spring Frost March 5
261 growing days
First Fall Frost November 21
Share this guide:

Grady County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (126 days to spare)
Transplant: Feb 28 🍅 Harvest: May 16 – Jul 11
Recommended (50%) ✓ Fits season (121 days to spare)
Transplant: Mar 12 🍅 Harvest: May 28 – Jul 23
Safe Start (90%) ✓ Fits season (124 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 18 – Aug 13

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 Grady County

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

Soil pH

Your soil pH (5.4–6.5) is more acidic than Horehound prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Horehound prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Horehound.

How to Plant Horehound

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

Succession Planting Horehound

4
successive plantings in your 261-day season

Sow every 8.6 weeks. Last sowing by Aug 23 to harvest before frost.

Plant Water Budget

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

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 3.7" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 2.2" 4.9" 0" ✅ Rainfall sufficient
Apr 2.2" 4" 0" ✅ Rainfall sufficient
May 2.2" 3.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4" 0" ✅ Rainfall sufficient
Jul 2.2" 5.3" 0" ✅ Rainfall sufficient
Aug 2.2" 4.5" 0" ✅ Rainfall sufficient
Sep 2.2" 3.6" 0" ✅ Rainfall sufficient
Oct 2.2" 2.8" 0" ✅ Rainfall sufficient
Nov 2.2" 3.7" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Grady 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 ~1,506 GDD — county provides 4,763 GDD Excellent fit

Horehound Planting Timeline — Grady County, GA

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors March 12 Mar 12 – Mar 26
Harvest May 28 May 28 – Jul 23

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May Harvest
June Harvest
July Harvest
August
September
October
November
December
Share this guide:

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: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

261 days in Grady County

Growing Tips for Horehound in Grady County

Direct sow Horehound outdoors after March 05 in Grady County when soil has warmed and frost danger has passed.

With Grady County's clay soil (33% clay), work in 3-4 inches of compost before planting Horehound. Avoid tilling when soil is wet to prevent compaction.

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 Grady County, GA?

Grady County is in Zone 9a with an average last frost of March 5. Plan your Horehound planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grady County, GA?

Grady County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 21.

🌱

Your Grady County Garden Planner — Free

A 24-page printable planner built for Grady County (Zone 9a). 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 Grady County, GA. 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.