When to Plant Horehound in Cottonwood County, MN
Horehound is a woolly, drought-tolerant perennial herb traditionally used for cough remedies and candy. It has a distinctive bitter, menthol-like flavor.
Cottonwood County, Minnesota is in USDA Zone 4b. The average last spring frost is April 29 and the first fall frost is October 8, giving you a growing season of approximately 162 days.
At an elevation of 1,066 feet, Cottonwood County receives approximately 32.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Horehound to ensure they mature before fall.
Cottonwood County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7
Drainage
Well Drained
Plant Planting Risk Windows
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
Horehound Planting Timeline — Cottonwood County, MN
Horehound Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 6 | May 6 – May 20 |
| Harvest | July 22 | Jul 22 – Sep 16 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
75–90 days
Soil pH
6 – 8
USDA Zone
Zone 4b
Growing Season
162 days
Growing Tips for Cottonwood 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
Horehound in Other Locations
Frequently Asked Questions
When should I plant Horehound in Cottonwood County, MN?
Cottonwood County is in Zone 4b with an average last frost of April 29. Plan your Horehound planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cottonwood County, MN?
Cottonwood County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is April 29 and first fall frost is October 8.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Cottonwood County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.