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When to Plant Horehound in Pike County, IN

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

Pike County, Indiana is in USDA Zone 6a. The average last spring frost is April 9 and the first fall frost is October 25, giving you a growing season of approximately 199 days.

At an elevation of 1,360 feet, Pike County receives approximately 37.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92ยฐF, providing good warmth for Horehound during the growing season.

Pike County, IN (Zone 6a) Moderate season
199 days
Last Spring Frost April 9
199 growing days
First Fall Frost October 25

Pike County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (58 days to spare)
Transplant: Apr 11 🍅 Harvest: Jun 27 – Aug 22
Recommended (50%) ✓ Fits season (59 days to spare)
Transplant: Apr 16 🍅 Harvest: Jul 2 – Aug 27
Safe Start (90%) ✓ Fits season (60 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 16 – Sep 10

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.

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
Horehound needs ~1,568 GDD — county provides 3,781 GDD Excellent fit

Horehound Planting Timeline โ€” Pike County, IN

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors April 16 Apr 16 โ€“ Apr 30
Harvest July 2 Jul 2 โ€“ Aug 27

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

75โ€“90 days

Soil pH

6 โ€“ 8

USDA Zone

Zone 6a

Growing Season

199 days

Growing Tips for Pike 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Horehound in Pike County, IN?

Pike County is in Zone 6a with an average last frost of April 9. Plan your Horehound planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pike County, IN?

Pike County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 9 and first fall frost is October 25.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Pike County gardeners in Zone 6a 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 Pike County, IN. Local conditions may vary. Last updated: April 2026.