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When to plant Horehound in Parrish, FL

In Parrish, Horehound is a single-season spring crop — there's no second fall window. Plant February 4–February 18 for an 75–90-day harvest, finishing well before the December 20 first frost.

When to Plant Horehound in Parrish, FL

Manatee County, Florida Zone 10a July

Your July planting checklist for Manatee County, Florida

Welcome to July in Zone 10a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost January 28
Avg. first frost December 20
Soil temp (4") 95°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Plan the fall garden

    Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.

  2. Keep heat-survivor crops productive

    Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.

  3. Watch for hurricane prep season

    August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.

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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.

Parrish, Florida is in USDA Zone 10a. The average last spring frost is January 28 and the first fall frost is December 20, giving you a growing season of approximately 326 days.

At an elevation of 237 feet, Manatee County receives approximately 57.6 inches of rainfall annually with predominantly sand soil. Summer highs average 103°F, so Horehound may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Horehound will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Horehound root diseases.

Parrish, FL (Zone 10a) Year-round
326 days
Last Spring Frost January 28
326 growing days
First Fall Frost December 20

Parrish Soil Profile

Soil Type

Sand

Soil pH

5-5.9

Drainage

Well Drained

Horehound Planting Risk Windows

Early Start (70% safe) ✓ Fits season (180 days to spare)
Transplant: Jan 29 🍅 Harvest: Apr 16 – Jun 11
Recommended (50%) ✓ Fits season (186 days to spare)
Transplant: Feb 4 🍅 Harvest: Apr 22 – Jun 17
Safe Start (90%) ✓ Fits season (159 days to spare)
Transplant: Mar 7 🍅 Harvest: May 23 – Jul 18

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 Parrish

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

Soil pH

Your soil pH (5.0–5.9) is more acidic than Horehound prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Manatee 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 (1.6%). 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

5
successive plantings in your 326-day season

Sow every 8.6 weeks. Last sowing by Sep 21 to harvest before frost.

Horehound Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 2.2" 2.6" 0" ✅ Rainfall sufficient
Feb 2.2" 2.8" 0" ✅ Rainfall sufficient
Mar 2.2" 3.3" 0" ✅ Rainfall sufficient
Apr 2.2" 3" 0" ✅ Rainfall sufficient
May 2.2" 3.8" 0" ✅ Rainfall sufficient
Jun 2.2" 8.7" 0" ✅ Rainfall sufficient
Jul 2.2" 8.4" 0" ✅ Rainfall sufficient
Aug 2.2" 7.2" 0" ✅ Rainfall sufficient
Sep 2.2" 8.4" 0" ✅ Rainfall sufficient
Oct 2.2" 4.7" 0" ✅ Rainfall sufficient
Nov 2.2" 2.6" 0" ✅ Rainfall sufficient
Dec 2.2" 2.2" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Jan–Dec in Manatee 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 ~2,248 GDD — county provides 8,910 GDD Excellent fit

Horehound Planting Timeline — Parrish, FL

Horehound Planting Calendar

Activity When Date Range
Transplant Outdoors February 4 Feb 4 – Feb 18
Harvest April 22 Apr 22 – Jun 17

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

Month-by-Month Timeline

MonthActivities
January
February Transplant Outdoors
March
April Harvest
May Harvest
June Harvest
July
August
September
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: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

326 days in Manatee County

Growing Tips for Horehound in Parrish

Direct sow Horehound outdoors after January 28 in Manatee County when soil has warmed and frost danger has passed.

Sandy soil in Manatee County dries quickly — 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 103°F in Manatee 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 →

When should I plant Horehound in Parrish, FL?

In Parrish, FL, plant Horehound after the last frost (around January 28) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Parrish, FL for Horehound?

Parrish sits in USDA Zone 10a. Horehound grows reliably in zones 3a through 10b, so it's a good fit here.

Can Horehound grow in Parrish's climate?

Yes — Horehound grows well in Parrish's temperate climate. Parrish averages a 327-day frost-free season, with last frost around January 28 and first frost around December 20.

🌱

Your Manatee County Garden Planner — Free

A 22-page printable planner built for Manatee County (Zone 10a). 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 Manatee County, FL. Local conditions may vary. Last updated: July 2026.