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When to Plant Chinese Cabbage in Mobile County, AL

Mobile County, Alabama Zone 9a May

May in the garden — Mobile County, Alabama

Your garden in Mobile County, Alabama is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 3
Avg. first frost November 24
Soil temp (4") 71°F
Watering Moderate
Pest pressure High
Daylight 13.6 hrs
  1. Pick chinese cabbage

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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Chinese cabbage (Napa cabbage) forms elongated, barrel-shaped heads with tender, mild-flavored leaves. It is a staple in Asian cooking, particularly for kimchi.

Mobile County, Alabama is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 24, giving you a growing season of approximately 266 days.

At an elevation of 101 feet, Mobile County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97°F, so Chinese Cabbage may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Chinese Cabbage will need more frequent watering and organic matter to retain nutrients.

Mobile County, AL (Zone 9a) Long season
266 days
Last Spring Frost March 3
266 growing days
First Fall Frost November 24
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Mobile County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Start indoors: Jan 22 Transplant: Feb 19 🍅 Harvest: Apr 16 – May 14
Recommended (50%) ✓ Fits season (182 days to spare)
Start indoors: Feb 3 Transplant: Mar 3 🍅 Harvest: Apr 28 – May 26
Safe Start (90%) ✓ Fits season (182 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: May 15 – Jun 12

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 Mobile County

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

Soil pH

Your soil pH (4.8–6.1) is more acidic than Chinese Cabbage prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Chinese Cabbage.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Chinese Cabbage.

How to Plant Chinese 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 Chinese Cabbage

6
successive plantings in your 266-day season

Sow every 5.7 weeks. Last sowing by Sep 15 to harvest before frost.

For a dedicated fall crop, sow by Sep 29.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 680 gal / 100 sq ft

Monthly Watering Guide for Chinese Cabbage

Chinese 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 Chinese Cabbage Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 6.5" 4.9" 1.6" 💧 Light watering
Apr 6.5" 3.7" 2.8" 💧 Light watering
May 6.5" 3.5" 3" 💧 Light watering
Jun 6.5" 4" 2.5" 💧 Light watering
Jul 6.5" 5.5" 1" 💧 Light watering
Aug 6.5" 4.2" 2.3" 💧 Light watering
Sep 6.5" 3.6" 2.9" 💧 Light watering
Oct 6.5" 3.5" 3" 💧 Light watering
Nov 6.5" 4.3" 2.2" 💧 Light watering
Dec 4" 0" ❄️ Dormant

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

Chinese 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.

Chinese Cabbage needs ~1,365 GDD — county provides 6,051 GDD Excellent fit

Chinese Cabbage Planting Timeline — Mobile County, AL

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors March 3 Mar 3 – Mar 17
Direct Sow February 10 Feb 10 – Mar 3
Harvest April 28 Apr 28 – May 26
Fall Sowing September 29 Sep 29 – Oct 13

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 Harvest
May Harvest
June
July
August
September Fall Sowing
October Fall Sowing
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

266 days in Mobile County

Growing Tips for Chinese Cabbage in Mobile County

Direct sow Chinese Cabbage outdoors after March 03 in Mobile County when soil has warmed and frost danger has passed.

Sandy soil in Mobile County dries quickly — mulch Chinese 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 Mobile County, provide afternoon shade for Chinese Cabbage and water deeply in the morning.

Common pests for Chinese 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 to avoid bolting. Start seeds indoors or direct sow in late summer. Keep soil consistently moist and provide shade in warm weather.

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 Chinese Cabbage in Mobile County, AL?

Mobile County is in Zone 9a with an average last frost of March 3. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Mobile County, AL?

Mobile County, Alabama is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 24.

🌱

Your Mobile County Garden Planner — Free

A 24-page printable planner built for Mobile 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 Mobile County, AL. 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.