When to Plant Napa Cabbage in Kimble County, TX
July in the garden — Kimble County, Texas
Here's what deserves your attention in Kimble County, Texas this month. Everything below is tailored to Zone 8a and timed around your local frost dates.
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.
Kimble County, Texas is in USDA Zone 8a. The average last spring frost is March 28 and the first fall frost is November 10, giving you a growing season of approximately 227 days.
At an elevation of 4,850 feet, Kimble County receives approximately 57.4 inches of rainfall annually with predominantly loam soil. Summer highs average 97°F, so Napa Cabbage may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Napa Cabbage root diseases.
Kimble County Soil Profile
Soil Type
Loam
Soil pH
6.4-7.6
Drainage
Well Drained
Napa Cabbage Planting Risk Windows
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 Kimble County
How your county's soil matches Napa Cabbage's growing requirements.
Soil pH
Your soil pH (6.4–7.6) overlaps with Napa Cabbage's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Kimble County is excellent for Napa Cabbage — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Napa Cabbage is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Napa Cabbage.
How to Plant Napa Cabbage
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Napa Cabbage
Sow every 6.3 weeks. Last sowing by Aug 27 to harvest before frost.
For a dedicated fall crop, sow by Sep 01.
Napa Cabbage Water Budget
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 | — | 1.4" | 0" | ❄️ Dormant |
| Feb | — | 2.2" | 0" | ❄️ Dormant |
| Mar | 6.5" | 3.3" | 3.2" | 💧 Light watering |
| Apr | 6.5" | 5.6" | 0.9" | 💧 Light watering |
| May | 6.5" | 8.1" | 0" | ✅ Rainfall sufficient |
| Jun | 6.5" | 10" | 0" | ✅ Rainfall sufficient |
| Jul | 6.5" | 7.6" | 0" | ✅ Rainfall sufficient |
| Aug | 6.5" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 6.5" | 4.7" | 1.8" | 💧 Light watering |
| Oct | 6.5" | 3.7" | 2.8" | 💧 Light watering |
| Nov | 6.5" | 2.1" | 4.4" | 🚿 Regular watering |
| Dec | — | 1.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Kimble 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 Planting Timeline — Kimble County, TX
Napa Cabbage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 21 | Feb 21 – Mar 7 |
| Transplant Outdoors | March 28 | Mar 28 – Apr 11 |
| Direct Sow | March 14 | Mar 14 – Apr 4 |
| Harvest | May 23 | May 23 – Jun 27 |
| Fall Sowing | September 1 | Sep 1 – Sep 15 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
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: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
227 days in Kimble County
Growing Tips for Napa Cabbage in Kimble County
Direct sow Napa Cabbage outdoors after March 28 in Kimble County when soil has warmed and frost danger has passed.
With summer highs reaching 97°F in Kimble 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
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Napa Cabbage in Other Locations
Frequently Asked Questions
When should I plant Napa Cabbage in Kimble County, TX?
Kimble County is in Zone 8a with an average last frost of March 28. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kimble County, TX?
Kimble County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 28 and first fall frost is November 10.
Your Kimble County Garden Planner — Free
A 22-page printable planner built for Kimble County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.