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When to Plant Marjoram in Santa Rosa County, FL

Sweet marjoram is a tender perennial herb with a delicate, sweet oregano-like flavor. It is a cornerstone of Mediterranean cooking and pairs well with meats and vegetables.

Santa Rosa County, Florida is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 21, giving you a growing season of approximately 260 days.

At an elevation of 104 feet, Santa Rosa County receives approximately 55 inches of rainfall annually with predominantly sand soil. Summer highs average 91ยฐF, providing good warmth for Marjoram during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Marjoram will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Marjoram root diseases.

Santa Rosa County, FL (Zone 8b) Long season
260 days
Last Spring Frost March 6
260 growing days
First Fall Frost November 21

Santa Rosa County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Transplant: Mar 8 🍅 Harvest: May 10 – Jul 19
Recommended (50%) ✓ Fits season (120 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jul 24
Safe Start (90%) ✓ Fits season (120 days to spare)
Transplant: Apr 3 🍅 Harvest: Jun 5 – Aug 14

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

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,143 gal / 100 sq ft
Drought risk

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

Marjoram needs ~1,369 GDD — county provides 4,745 GDD Excellent fit

Marjoram Planting Timeline โ€” Santa Rosa County, FL

Marjoram Planting Calendar

Activity When Date Range
Transplant Outdoors March 13 Mar 13 โ€“ Mar 27
Harvest May 15 May 15 โ€“ Jul 24

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

6.5 โ€“ 7.5

USDA Zone

Zone 8b

Growing Season

260 days

Growing Tips for Santa Rosa County

Start seeds indoors 6-8 weeks before last frost. Harvest stems just as flower buds appear for peak flavor. In cold climates, grow as an annual or bring containers indoors.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Marjoram in Santa Rosa County, FL?

Santa Rosa County is in Zone 8b with an average last frost of March 6. Plan your Marjoram planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Santa Rosa County, FL?

Santa Rosa County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 21.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Santa Rosa County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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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 Santa Rosa County, FL. Local conditions may vary. Last updated: April 2026.