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When to Plant Sorrel in Okaloosa County, FL

Okaloosa County, Florida Zone 9a May

May in the garden — Okaloosa County, Florida

Each item below is timed to Okaloosa County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 14
Avg. first frost November 16
Soil temp (4") 74°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Harvest sorrel as they ripen

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

June will be here before you know it — start on
  • First harvests: sorrel

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Sorrel is a perennial herb with tangy, lemon-flavored arrow-shaped leaves. It is one of the first greens to emerge in spring and is used in soups and salads.

Okaloosa County, Florida is in USDA Zone 9a. The average last spring frost is March 14 and the first fall frost is November 16, giving you a growing season of approximately 247 days.

At an elevation of 396 feet, Okaloosa County receives approximately 48.4 inches of rainfall annually with predominantly sand soil. Summer highs average 92°F, providing good warmth for Sorrel during the growing season. Sandy soil warms quickly in spring — great for early planting — but Sorrel will need more frequent watering and organic matter to retain nutrients.

Okaloosa County, FL (Zone 9a) Long season
247 days
Last Spring Frost March 14
247 growing days
First Fall Frost November 16

Okaloosa County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (152 days to spare)
Start indoors: Feb 6 Transplant: Feb 27 🍅 Harvest: Apr 10 – Jun 12
Recommended (50%) ✓ Fits season (149 days to spare)
Start indoors: Feb 14 Transplant: Mar 7 🍅 Harvest: Apr 18 – Jun 20
Safe Start (90%) ✓ Fits season (148 days to spare)
Start indoors: Mar 10 Transplant: Mar 31 🍅 Harvest: May 12 – Jul 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.

Soil Compatibility in Okaloosa County

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

Soil pH

Your soil pH (4.9–5.8) is more acidic than Sorrel prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Sorrel.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Sorrel.

How to Plant Sorrel

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Sorrel

7
successive plantings in your 247-day season

Sow every 4.6 weeks. Last sowing by Sep 17 to harvest before frost.

For a dedicated fall crop, sow by Sep 21.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,258 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Sorrel

Sorrel needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Sorrel Needs Rainfall You Supplement Action
Jan 2.1" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 4.3" 2.7" 1.6" 💧 Light watering
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 6.1" 0" ✅ Rainfall sufficient
Jul 4.3" 8.5" 0" ✅ Rainfall sufficient
Aug 4.3" 6.3" 0" ✅ Rainfall sufficient
Sep 4.3" 6.4" 0" ✅ Rainfall sufficient
Oct 4.3" 4" 0.3" 💧 Light watering
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Okaloosa County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Sorrel 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.

Sorrel needs ~950 GDD — county provides 4,693 GDD Excellent fit

Sorrel Planting Timeline — Okaloosa County, FL

Sorrel Planting Calendar

Activity When Date Range
Start Indoors February 14 Feb 14 – Feb 28
Transplant Outdoors March 7 Mar 7 – Mar 21
Direct Sow February 21 Feb 21 – Mar 14
Harvest April 18 Apr 18 – Jun 20
Fall Sowing September 21 Sep 21 – Oct 5

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July
August
September Fall Sowing
October Fall Sowing
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

247 days in Okaloosa County

Growing Tips for Sorrel in Okaloosa County

Direct sow Sorrel outdoors after March 14 in Okaloosa County when soil has warmed and frost danger has passed.

Sandy soil in Okaloosa County dries quickly — mulch Sorrel with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Your generous 247.0-day season in Okaloosa County allows multiple plantings of Sorrel. Sow every 20.0 days for continuous harvest.

General growing tips

Direct sow in early spring or fall. Remove flower stalks promptly to encourage leaf production. Divide clumps every 3-4 years. Young leaves have the best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sorrel in Okaloosa County, FL?

Okaloosa County is in Zone 9a with an average last frost of March 14. Plan your Sorrel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Okaloosa County, FL?

Okaloosa County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 14 and first fall frost is November 16.

🌱

Your Okaloosa County Garden Planner — Free

A 24-page printable planner built for Okaloosa County (Zone 9a). 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 Okaloosa County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.