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When to Plant Napa Cabbage in Lake County, FL

Lake County, Florida Zone 9b May

May to-do list for Lake County, Florida

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

Avg. last frost February 12
Avg. first frost December 11
Soil temp (4") 75°F
Watering Moderate
Pest pressure High
Daylight 13.4 hrs
  1. It's harvest week for napa cabbage

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

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Napa cabbage forms tall, barrel-shaped heads with tender, crinkled leaves and a mild, slightly sweet flavor. It is the primary cabbage used for kimchi.

Lake County, Florida is in USDA Zone 9b. The average last spring frost is February 12 and the first fall frost is December 11, giving you a growing season of approximately 302 days.

At an elevation of 130 feet, Lake County receives approximately 56.1 inches of rainfall annually with predominantly sand soil. Summer highs average 97°F, so Napa Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Napa Cabbage will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Napa Cabbage root diseases.

Lake County, FL (Zone 9b) Year-round
302 days
Last Spring Frost February 12
302 growing days
First Fall Frost December 11
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Lake County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (217 days to spare)
Start indoors: Dec 29 Transplant: Jan 26 🍅 Harvest: Mar 23 – Apr 27
Recommended (50%) ✓ Fits season (211 days to spare)
Start indoors: Jan 15 Transplant: Feb 12 🍅 Harvest: Apr 9 – May 14
Safe Start (90%) ✓ Fits season (204 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 1 – Jun 5

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 Lake County

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

Soil pH

Your soil pH (5.1–5.7) is more acidic than Napa Cabbage prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Napa Cabbage is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Napa Cabbage.

How to Plant Napa 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 Napa Cabbage

6
successive plantings in your 302-day season

Sow every 6.3 weeks. Last sowing by Sep 27 to harvest before frost.

For a dedicated fall crop, sow by Oct 16.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 3,162 gal / 100 sq ft

Monthly Watering Guide for Napa Cabbage

Napa Cabbage needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Napa Cabbage Needs Rainfall You Supplement Action
Jan 2.7" 0" ❄️ Dormant
Feb 6.5" 2.7" 3.8" 🚿 Regular watering
Mar 6.5" 3.3" 3.2" 💧 Light watering
Apr 6.5" 2.6" 3.9" 🚿 Regular watering
May 6.5" 3.1" 3.4" 🚿 Regular watering
Jun 6.5" 6.8" 0" ✅ Rainfall sufficient
Jul 6.5" 8.4" 0" ✅ Rainfall sufficient
Aug 6.5" 9" 0" ✅ Rainfall sufficient
Sep 6.5" 8.2" 0" ✅ Rainfall sufficient
Oct 6.5" 4.5" 2" 💧 Light watering
Nov 6.5" 2.2" 4.3" 🚿 Regular watering
Dec 6.5" 2.5" 4" 🚿 Regular watering

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

Napa 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.

Napa Cabbage needs ~1,479 GDD — county provides 6,893 GDD Excellent fit

Napa Cabbage Planting Timeline — Lake County, FL

Napa Cabbage Planting Calendar

Activity When Date Range
Start Indoors January 15 Jan 15 – Jan 29
Transplant Outdoors February 12 Feb 12 – Feb 26
Direct Sow January 22 Jan 22 – Feb 12
Harvest April 9 Apr 9 – May 14
Fall Sowing October 16 Oct 16 – Oct 30

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

302 days in Lake County

Growing Tips for Napa Cabbage in Lake County

Direct sow Napa Cabbage outdoors after February 12 in Lake County when soil has warmed and frost danger has passed.

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

With summer highs reaching 97°F in Lake County, provide afternoon shade for Napa Cabbage and water deeply in the morning.

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

General growing tips

Best grown as a fall crop. Direct sow in late summer, 60-70 days before first frost. Keep soil evenly moist. Bolt-resistant varieties are available for spring planting.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Napa Cabbage in Lake County, FL?

Lake County is in Zone 9b with an average last frost of February 12. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lake County, FL?

Lake County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 12 and first fall frost is December 11.

🌱

Your Lake County Garden Planner — Free

A 24-page printable planner built for Lake County (Zone 9b). 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 Lake 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.