When to Plant Horehound in USDA Zone 8a
Zone 8a gardeners: here's your May plan
Each item below is timed to Zone 8a's frost dates and soil temperatures. Skip nothing, stress about nothing.
June will be here before you know it — start on
- First harvests: horehound
Horehound is a woolly, drought-tolerant perennial herb traditionally used for cough remedies and candy. It has a distinctive bitter, menthol-like flavor.
In Zone 8a, the average last spring frost is around March 8 and the first fall frost is around November 18, giving you a growing season of approximately 255 days.
Horehound Planting Timeline — Zone 8a
Where Is USDA Zone 8a?
The map below highlights the states that contain Zone 8a. Click any state to see the Horehound planting schedule for that location.
Horehound Planting Calendar — Zone 8a
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 15 | Mar 15 – Mar 29 |
| Harvest | May 31 | May 31 – Jul 26 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Free Zone 8a Planting Calendar PDF
Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 8a with start dates, transplant windows, and harvest times.
Growing Conditions
Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
Days to Maturity
75–90 days
Soil pH
6 – 8
Zone Temperature Range
°F to °F average annual minimum
Growing Season
255 days (Zone average)
Planting Specifications
| Planting Depth | 0.5 inches |
| Plant Spacing | 8 inches apart |
| Row Spacing | 12 inches between rows |
Succession Planting Horehound in Zone
Sow every 8.6 weeks for continuous harvest throughout the season.
Growing Tips for Horehound in Zone
Zone has a short growing season (~255 days). Start Horehound indoors early and use season-extension techniques like row covers and cold frames.
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
The Gardener's Encyclopedia to Companion Planting
The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.
- Proven pairings for 200+ vegetables, herbs, flowers, and fruits
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Saving Horehound Seeds
Recommended for Your Garden
Breathable fabric pots that promote healthy root growth and prevent overwatering.
Built-in reservoir keeps herbs and greens consistently watered with less effort.
Start seeds indoors with reusable cell trays and humidity domes.
Related Plants
Horehound in Other Zones
Horehound by State
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Horehound in Zone 8a?
In Zone 8a, plan your Horehound planting around the average last frost date of March 8. Transplant seedlings around March 15.
Can Horehound grow in Zone 8a?
Yes, Horehound can grow well in Zone 8a, hardy in USDA zones 3a through 10b. Zone 8a has a growing season of approximately 255 days, which is sufficient for Horehound (75-90 days to maturity).
When can I harvest Horehound in Zone 8a?
In Zone 8a, expect to harvest Horehound from May 31 – July 26. Horehound takes 75-90 days from planting to harvest.
What is the last frost date for Zone 8a?
The average last spring frost in Zone 8a is around March 8, and the first fall frost is around November 18. This gives a growing season of approximately 255 days. These are 50% probability dates — actual frost dates vary year to year.
What should I plant next to Horehound?
Good companion plants for Horehound include Tomatoes, Peppers. These companions can help with pest control, pollination, and nutrient sharing.
Your Free Printable Garden Planner
A 24-page printable planner tailored to your zone. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.