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When to Plant Napa Cabbage in Lynn County, TX

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.

Lynn County, Texas is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is November 9, giving you a growing season of approximately 223 days.

At an elevation of 2,252 feet, Lynn County receives approximately 47.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94ยฐF, providing good warmth for Napa Cabbage during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Napa Cabbage will need more frequent watering and organic matter to retain nutrients.

Lynn County, TX (Zone 7b) Long season
223 days
Last Spring Frost March 31
223 growing days
First Fall Frost November 9

Lynn County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (130 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 20 – Jun 24
Recommended (50%) ✓ Fits season (132 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 26 – Jun 30
Safe Start (90%) ✓ Fits season (131 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 10 – Jul 15

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 Lynn County

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

Soil pH

Your soil pH (7.5โ€“8.5) is more alkaline than Napa Cabbage prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.1%). 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 10 weeks before your first frost date for a fall harvest.

Succession Planting Napa Cabbage

4
successive plantings in your 223-day season

Sow every 6.3 weeks. Last sowing by Aug 26 to harvest before frost.

For a dedicated fall crop, sow by Aug 31.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,437 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 3.4" 0" โ„๏ธ Dormant
Feb โ€” 3.1" 0" โ„๏ธ Dormant
Mar 6.5" 2.8" 3.7" ๐Ÿšฟ Regular watering
Apr 6.5" 1.8" 4.7" ๐Ÿšฟ Regular watering
May 6.5" 1" 5.5" ๐Ÿšฟ Regular watering
Jun 6.5" 1.6" 4.9" ๐Ÿšฟ Regular watering
Jul 6.5" 7.4" 0" โœ… Rainfall sufficient
Aug 6.5" 9.4" 0" โœ… Rainfall sufficient
Sep 6.5" 6.5" 0" โœ… Rainfall sufficient
Oct 6.5" 4.2" 2.3" ๐Ÿ’ง Light watering
Nov 6.5" 3.2" 3.3" ๐Ÿšฟ Regular watering
Dec โ€” 3.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Lynn County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,332 GDD — county provides 4,571 GDD Excellent fit

Napa Cabbage Planting Timeline โ€” Lynn County, TX

Napa Cabbage Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 โ€“ Mar 10
Transplant Outdoors March 31 Mar 31 โ€“ Apr 14
Direct Sow March 17 Mar 17 โ€“ Apr 7
Harvest May 26 May 26 โ€“ Jun 30
Fall Sowing August 31 Aug 31 โ€“ Sep 14

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1.5"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

55โ€“75 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

223 days in Lynn County

Growing Tips for Napa Cabbage in Lynn County

Direct sow Napa Cabbage outdoors after March 31 in Lynn County when soil has warmed and frost danger has passed.

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

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 Lynn County, TX?

Lynn County is in Zone 7b with an average last frost of March 31. Plan your Napa Cabbage planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lynn County, TX?

Lynn County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is November 9.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lynn County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Lynn County, TX. Local conditions may vary. Last updated: April 2026.