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When to Plant Chinese Cabbage in Rutherford County, TN

Rutherford County, Tennessee Zone 7b May

May in the garden — Rutherford County, Tennessee

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 April 12
Avg. first frost October 24
Soil temp (4") 57°F
Watering Moderate
Pest pressure Moderate
Daylight 13.9 hrs
  1. Sow chinese cabbage in trays indoors

    You're about 21 weeks out from your last frost — the perfect window to get these germinating indoors.

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

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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.

Rutherford County, Tennessee is in USDA Zone 7b. The average last spring frost is April 12 and the first fall frost is October 24, giving you a growing season of approximately 195 days.

At an elevation of 3,872 feet, Rutherford County receives approximately 44.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Chinese Cabbage during the growing season.

Rutherford County, TN (Zone 7b) Moderate season
195 days
Last Spring Frost April 12
195 growing days
First Fall Frost October 24

Rutherford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Start indoors: Mar 3 Transplant: Apr 7 🍅 Harvest: Jun 2 – Jun 30
Recommended (50%) ✓ Fits season (111 days to spare)
Start indoors: Mar 8 Transplant: Apr 12 🍅 Harvest: Jun 7 – Jul 5
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Mar 25 Transplant: Apr 29 🍅 Harvest: Jun 24 – Jul 22

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 Rutherford County

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

Soil pH

Your soil pH (5.8–7.0) overlaps with Chinese Cabbage's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Rutherford County is excellent for Chinese Cabbage — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Chinese Cabbage.

How to Plant Chinese Cabbage

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Chinese Cabbage

4
successive plantings in your 195-day season

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

For a dedicated fall crop, sow by Aug 15.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,114 gal / 100 sq ft
Drought risk

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

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 4.3" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 6.5" 3.4" 3.1" 💧 Light watering
May 6.5" 3.2" 3.3" 🚿 Regular watering
Jun 6.5" 3.9" 2.6" 💧 Light watering
Jul 6.5" 4.5" 2" 💧 Light watering
Aug 6.5" 3.7" 2.8" 💧 Light watering
Sep 6.5" 3.8" 2.7" 💧 Light watering
Oct 6.5" 2.6" 3.9" 🚿 Regular watering
Nov 3.8" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Rutherford 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 ~960 GDD — county provides 3,120 GDD Excellent fit

Chinese Cabbage Planting Timeline — Rutherford County, TN

Chinese Cabbage Planting Calendar

Activity When Date Range
Start Indoors March 8 Mar 8 – Mar 22
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow March 29 Mar 29 – Apr 19
Harvest June 7 Jun 7 – Jul 5
Fall Sowing August 15 Aug 15 – Aug 29

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

195 days in Rutherford County

Growing Tips for Chinese Cabbage in Rutherford County

Direct sow Chinese Cabbage outdoors after April 12 in Rutherford County when soil has warmed and frost danger has passed.

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 Rutherford County, TN?

Rutherford County is in Zone 7b with an average last frost of April 12. Plan your Chinese Cabbage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Rutherford County, TN?

Rutherford County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 12 and first fall frost is October 24.

🌱

Your Rutherford County Garden Planner — Free

A 24-page printable planner built for Rutherford County (Zone 7b). 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 Rutherford County, TN. 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.