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When to Plant Rosemary in Holmes County, FL

Rosemary is an aromatic evergreen shrub with needle-like leaves and a piney, citrus flavor. It is a Mediterranean herb that thrives in warm, dry conditions.

Holmes County, Florida is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 164 feet, Holmes County receives approximately 57.8 inches of rainfall annually with predominantly sand soil. Summer highs average 93ยฐF, providing good warmth for Rosemary during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Rosemary will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rosemary root diseases.

Holmes County, FL (Zone 8b) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13

Holmes County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (13 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 5 – Oct 23
Recommended (50%) ✓ Fits season (12 days to spare)
Transplant: Mar 22 🍅 Harvest: Jun 14 – Nov 1
Safe Start (90%) ✓ Fits season (3 days to spare)
Transplant: Apr 18 🍅 Harvest: Jul 11 – Nov 28

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 Holmes County

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

Soil pH

Your soil pH (5.2โ€“6.2) is more acidic than Rosemary prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Holmes County warms quickly in spring but drains fast. Rosemary will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Rosemary.

How to Plant Rosemary

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

Succession Planting Rosemary

3
successive plantings in your 243-day season

Sow every 9.1 weeks. Last sowing by May 17 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Rosemary

Rosemary needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Rosemary Needs Rainfall You Supplement Action
Jan โ€” 3" 0" โ„๏ธ Dormant
Feb โ€” 3.3" 0" โ„๏ธ Dormant
Mar 1.3" 3.7" 0" โœ… Rainfall sufficient
Apr 1.3" 2.9" 0" โœ… Rainfall sufficient
May 1.3" 3.8" 0" โœ… Rainfall sufficient
Jun 1.3" 7.9" 0" โœ… Rainfall sufficient
Jul 1.3" 7.4" 0" โœ… Rainfall sufficient
Aug 1.3" 8.6" 0" โœ… Rainfall sufficient
Sep 1.3" 7.5" 0" โœ… Rainfall sufficient
Oct 1.3" 5.1" 0" โœ… Rainfall sufficient
Nov 1.3" 2.1" 0" โœ… Rainfall sufficient
Dec โ€” 2.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Holmes County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Rosemary 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" โ€” every day above 50ยฐF 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.

Rosemary needs ~2,568 GDD — county provides 4,799 GDD Excellent fit

Rosemary Planting Timeline โ€” Holmes County, FL

Rosemary Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 โ€“ Apr 5
Harvest June 14 Jun 14 โ€“ Nov 1

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May โ€”
June Harvest
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.3"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

80โ€“180 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

243 days in Holmes County

Growing Tips for Rosemary in Holmes County

Direct sow Rosemary outdoors after March 15 in Holmes County when soil has warmed and frost danger has passed.

Sandy soil in Holmes County dries quickly โ€” mulch Rosemary with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With 58" of annual rainfall in Holmes County, ensure good drainage for Rosemary โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

Grow in well-drained soil and avoid overwatering. In cold climates, grow in containers and bring indoors for winter. Propagate from stem cuttings for faster results than seed.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rosemary in Holmes County, FL?

Holmes County is in Zone 8b with an average last frost of March 15. Plan your Rosemary planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Holmes County, FL?

Holmes County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Holmes County gardeners in Zone 8b 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.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Holmes County, FL. Local conditions may vary. Last updated: April 2026.