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When to Plant Horehound in Towner County, ND

Towner County, North Dakota Zone 3b May

Top priorities for Towner County, North Dakota gardeners in May

Here's what deserves your attention in Towner County, North Dakota this month. Everything below is tailored to Zone 3b and timed around your local frost dates.

Avg. last frost May 15
Avg. first frost September 23
Soil temp (4") 51°F
Watering Moderate
Pest pressure Low
Daylight 15 hrs
  1. Set out horehound seedlings

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

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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.

Towner County, North Dakota is in USDA Zone 3b. The average last spring frost is May 15 and the first fall frost is September 23, giving you a growing season of approximately 131 days.

At an elevation of 629 feet, Towner County receives approximately 23.1 inches of rainfall annually with predominantly loam soil. Summer highs average 78°F, so choose short-season varieties of Horehound to ensure they mature before fall.

Towner County, ND (Zone 3b) Short season
131 days
Last Spring Frost May 15
131 growing days
First Fall Frost September 23

Towner County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 19 🍅 Harvest: Aug 4 – Sep 22
Recommended (50%) ✗ May not fit
Transplant: May 22 🍅 Harvest: Aug 7 – Sep 25
Safe Start (90%) ✗ May not fit
Transplant: Jun 5 🍅 Harvest: Aug 21 – Oct 9

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 Towner County

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

Soil pH

Your soil pH (6.4–7.4) is within Horehound's preferred range (6.0–8.0).

Soil Texture

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

Drainage

Drainage is adequate for Horehound.

Organic Matter

Organic matter is excellent (4.0%) — Horehound will thrive.

How to Plant Horehound

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

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/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 0.6" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.3" 0" ❄️ Dormant
Apr 2.1" 0" ❄️ Dormant
May 2.2" 3.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4.2" 0" ✅ Rainfall sufficient
Jul 2.2" 2.5" 0" ✅ Rainfall sufficient
Aug 2.2" 2.5" 0" ✅ Rainfall sufficient
Sep 2.2" 2.3" 0" ✅ Rainfall sufficient
Oct 1.7" 0" ❄️ Dormant
Nov 0.9" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Towner 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 ~701 GDD — county provides 1,113 GDD Excellent fit

Horehound Planting Timeline — Towner County, ND

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors May 22 May 22 – Jun 5
Harvest August 7 Aug 7 – Sep 25

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June Transplant Outdoors
July
August Harvest
September Harvest
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 3b

📆 Growing Season

131 days in Towner County

Growing Tips for Horehound in Towner County

Direct sow Horehound outdoors after May 15 in Towner County when soil has warmed and frost danger has passed.

Towner County receives only 23" of rain annually. Horehound needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Towner County, ND?

Towner County is in Zone 3b with an average last frost of May 15. Plan your Horehound planting based on this frost date — see the calendar above for exact timing.

What planting zone is Towner County, ND?

Towner County, North Dakota is in USDA Hardiness Zone 3b. The average last spring frost is May 15 and first fall frost is September 23.

🌱

Your Towner County Garden Planner — Free

A 24-page printable planner built for Towner County (Zone 3b). 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 Towner County, ND. 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.