When to plant Napa Cabbage in Terrebonne Parish County,
Terrebonne Parish County gardeners should plant Napa Cabbage between January 17 and February 7 in spring. With Terrebonne Parish County's Zone 9b climate (last frost February 7), Napa Cabbage needs 75 days to mature — plant by September 24 for a full harvest. A second sowing from October 13 to October 27 extends the harvest into fall.
When to Plant Napa Cabbage in Terrebonne Parish, LA
This month in Terrebonne Parish, Louisiana
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
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.
Terrebonne Parish, Louisiana is in USDA Zone 9b. The average last spring frost is February 7 and the first fall frost is December 8, giving you a growing season of approximately 304 days.
At an elevation of 484 feet, Terrebonne Parish receives approximately 61.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 102°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.
Terrebonne Parish Soil Profile
Soil Type
Sandy Loam
Soil pH
5.1-6.4
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 Terrebonne Parish
How your county's soil matches Napa Cabbage's growing requirements.
Soil pH
Your soil pH (5.1–6.4) is more acidic than Napa Cabbage prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Terrebonne Parish warms quickly in spring but drains fast. Napa Cabbage will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Napa Cabbage.
Organic Matter
Organic matter is low (2.0%). Add 2-3 inches of compost before planting Napa Cabbage.
How to Plant Napa Cabbage
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Napa Cabbage
Sow every 6.3 weeks. Last sowing by Sep 24 to harvest before frost.
For a dedicated fall crop, sow by Oct 13.
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 | — | 5.3" | 0" | ❄️ Dormant |
| Feb | 6.5" | 5.5" | 1" | 💧 Light watering |
| Mar | 6.5" | 6.1" | 0.4" | 💧 Light watering |
| Apr | 6.5" | 5" | 1.5" | 💧 Light watering |
| May | 6.5" | 5" | 1.5" | 💧 Light watering |
| Jun | 6.5" | 5.3" | 1.2" | 💧 Light watering |
| Jul | 6.5" | 6.2" | 0.3" | 💧 Light watering |
| Aug | 6.5" | 5.7" | 0.8" | 💧 Light watering |
| Sep | 6.5" | 4.1" | 2.4" | 💧 Light watering |
| Oct | 6.5" | 3.7" | 2.8" | 💧 Light watering |
| Nov | 6.5" | 4.9" | 1.6" | 💧 Light watering |
| Dec | 6.5" | 5.1" | 1.4" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Terrebonne Parish). 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 — Terrebonne Parish, LA
Napa Cabbage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 10 | Jan 10 – Jan 24 |
| Transplant Outdoors | February 7 | Feb 7 – Feb 21 |
| Direct Sow | January 17 | Jan 17 – Feb 7 |
| Harvest | April 4 | Apr 4 – May 9 |
| Fall Sowing | October 13 | Oct 13 – Oct 27 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1.5"/week · Only during dry spells
📅 Days to Maturity
55–75 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9b
📆 Growing Season
304 days in Terrebonne Parish
Growing Tips for Napa Cabbage in Terrebonne Parish
Direct sow Napa Cabbage outdoors after February 07 in Terrebonne Parish when soil has warmed and frost danger has passed.
Sandy soil in Terrebonne Parish 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 102°F in Terrebonne Parish, 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
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Napa Cabbage in Other Locations
Frequently Asked Questions
When should I plant Napa Cabbage in Terrebonne Parish, LA?
Terrebonne Parish is in Zone 9b with an average last frost of February 7. Plan your Napa Cabbage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Terrebonne Parish, LA?
Terrebonne Parish, Louisiana is in USDA Hardiness Zone 9b. The average last spring frost is February 7 and first fall frost is December 8.
When should I plant Napa Cabbage in Terrebonne Parish County, ?
In Terrebonne Parish County, , plant Napa Cabbage after the last frost (around February 7) and before the first frost (around December 8). Best results when soil holds above 50°F.
What growing zone is Terrebonne Parish County, for Napa Cabbage?
Terrebonne Parish County sits in USDA Zone 9b. Napa Cabbage grows reliably in zones 2a through 11b, so it's a good fit here.
Can Napa Cabbage grow in Terrebonne Parish County's climate?
Yes — Napa Cabbage grows well in Terrebonne Parish County's temperate climate. Terrebonne Parish County averages a 305-day frost-free season, with last frost around February 7 and first frost around December 8.
Your Terrebonne Parish Garden Planner — Free
A 22-page printable planner built for Terrebonne Parish (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.