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When to plant Cabbage in Jefferson County County,

For Cabbage in Jefferson County County, the safe spring window opens around February 16 and closes around March 9. Last expected frost is March 9, first fall frost November 21, giving a 257-day growing season. A second sowing from September 26 to October 10 extends the harvest into fall.

When to Plant Cabbage in Jefferson County, FL

Cabbage
Jefferson County, Florida Zone 9a June

Your June planting checklist for Jefferson County, Florida

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 9
Avg. first frost November 21
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
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Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.

Jefferson County, Florida is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 21, giving you a growing season of approximately 257 days.

At an elevation of 105 feet, Jefferson County receives approximately 56 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cabbage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.

Jefferson County, FL (Zone 9a) Long season
257 days
Last Spring Frost March 9
257 growing days
First Fall Frost November 21
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Jefferson County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.9

Drainage

Well Drained

Cabbage Planting Risk Windows

Early Start (70% safe) ✓ Fits season (133 days to spare)
Start indoors: Feb 4 Transplant: Mar 4 🍅 Harvest: May 6 – Jul 1
Recommended (50%) ✓ Fits season (138 days to spare)
Start indoors: Feb 9 Transplant: Mar 9 🍅 Harvest: May 11 – Jul 6
Safe Start (90%) ✓ Fits season (141 days to spare)
Start indoors: Feb 27 Transplant: Mar 27 🍅 Harvest: May 29 – Jul 24

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 Jefferson County

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

Soil pH

Your soil pH (5.2–5.9) is more acidic than Cabbage prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cabbage.

Organic Matter

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

How to Plant Cabbage

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Cabbage

5
successive plantings in your 257-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

For a dedicated fall crop, sow by Sep 26.

Cabbage Water Budget

Plant needs
0.9″/week
Rainfall provides
0.9″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 583 gal / 100 sq ft

Monthly Watering Guide for Cabbage

Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Cabbage Needs Rainfall You Supplement Action
Jan 3" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 3.9" 3.2" 0.7" 💧 Light watering
Apr 3.9" 2.4" 1.5" 💧 Light watering
May 3.9" 3.8" 0.1" 💧 Light watering
Jun 3.9" 7.8" 0" ✅ Rainfall sufficient
Jul 3.9" 8.9" 0" ✅ Rainfall sufficient
Aug 3.9" 7.4" 0" ✅ Rainfall sufficient
Sep 3.9" 6.4" 0" ✅ Rainfall sufficient
Oct 3.9" 5" 0" ✅ Rainfall sufficient
Nov 3.9" 2.5" 1.4" 💧 Light watering
Dec 2.7" 0" ❄️ Dormant

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

Cabbage 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.

Cabbage needs ~1,700 GDD — county provides 5,461 GDD Excellent fit

Cabbage Planting Timeline — Jefferson County, FL

Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow February 16 Feb 16 – Mar 9
Harvest May 11 May 11 – Jul 6
Fall Sowing September 26 Sep 26 – Oct 10

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

257 days in Jefferson County

Growing Tips for Cabbage in Jefferson County

Direct sow Cabbage outdoors after March 09 in Jefferson County when soil has warmed and frost danger has passed.

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

Summer highs in Jefferson County reach 95°F — grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cabbage in Jefferson County, FL?

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

What planting zone is Jefferson County, FL?

Jefferson County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 21.

When should I plant Cabbage in Jefferson County County, ?

In Jefferson County County, , plant Cabbage after the last frost (around March 9) and before the first frost (around November 21). Best results when soil holds above 50°F.

What growing zone is Jefferson County County, for Cabbage?

Jefferson County County sits in USDA Zone 9a. Cabbage grows reliably in zones 1a through 10b, so it's a good fit here.

Can Cabbage grow in Jefferson County County's climate?

Yes — Cabbage grows well in Jefferson County County's temperate climate. Jefferson County County averages a 257-day frost-free season, with last frost around March 9 and first frost around November 21.

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Your Jefferson County Garden Planner — Free

A 22-page printable planner built for Jefferson 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 Jefferson County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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