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When to Plant Horehound in Gray 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.

Gray County, Texas is in USDA Zone 7a. The average last spring frost is April 10 and the first fall frost is October 27, giving you a growing season of approximately 200 days.

At an elevation of 2,319 feet, Gray County receives approximately 46.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Horehound may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Horehound will need more frequent watering and organic matter to retain nutrients.

Gray County, TX (Zone 7a) Long season
200 days
Last Spring Frost April 10
200 growing days
First Fall Frost October 27

Gray County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (62 days to spare)
Transplant: Apr 11 🍅 Harvest: Jun 27 – Aug 22
Recommended (50%) ✓ Fits season (60 days to spare)
Transplant: Apr 17 🍅 Harvest: Jul 3 – Aug 28
Safe Start (90%) ✓ Fits season (59 days to spare)
Transplant: May 3 🍅 Harvest: Jul 19 – Sep 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 Gray County

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

Soil pH

Your soil pH (7.4โ€“8.9) is more alkaline than Horehound prefers (6.0โ€“8.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Gray 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 200-day season

Sow every 8.6 weeks. Last sowing by Jul 29 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 8/10 โ€” 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 โ€” 3.1" 0" โ„๏ธ Dormant
Feb โ€” 2.8" 0" โ„๏ธ Dormant
Mar โ€” 2.4" 0" โ„๏ธ Dormant
Apr 2.2" 1.6" 0.6" ๐Ÿ’ง Light watering
May 2.2" 1" 1.2" ๐Ÿšฟ Regular watering
Jun 2.2" 1.6" 0.6" ๐Ÿ’ง Light watering
Jul 2.2" 8.5" 0" โœ… Rainfall sufficient
Aug 2.2" 9.5" 0" โœ… Rainfall sufficient
Sep 2.2" 6" 0" โœ… Rainfall sufficient
Oct 2.2" 4.3" 0" โœ… Rainfall sufficient
Nov โ€” 2.4" 0" โ„๏ธ Dormant
Dec โ€” 3.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Gray County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 4,700 GDD Excellent fit

Horehound Planting Timeline โ€” Gray County, TX

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors April 17 Apr 17 โ€“ May 1
Harvest July 3 Jul 3 โ€“ Aug 28

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 Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

75โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

200 days in Gray County

Growing Tips for Horehound in Gray County

Direct sow Horehound outdoors after April 10 in Gray County when soil has warmed and frost danger has passed.

Sandy soil in Gray County dries quickly โ€” 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 98ยฐF in Gray 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 Gray County, TX?

Gray County is in Zone 7a with an average last frost of April 10. Plan your Horehound planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Gray County, TX?

Gray County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 10 and first fall frost is October 27.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Gray County gardeners in Zone 7a 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 Gray County, TX. Local conditions may vary. Last updated: April 2026.