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When to Plant Ginger in St. Martin Parish, LA

St. Martin Parish, Louisiana Zone 9a May

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Avg. last frost February 13
Avg. first frost December 5
Soil temp (4") 75°F
Watering Moderate
Pest pressure High
Daylight 13.5 hrs

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Ginger is a tropical plant grown for its pungent, spicy rhizome used worldwide in cooking and medicine. It requires a long, warm, humid growing season.

St. Martin Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 5, giving you a growing season of approximately 295 days.

At an elevation of 417 feet, St. Martin Parish receives approximately 55.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Ginger may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Ginger will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ginger root diseases.

St. Martin Parish, LA (Zone 9a) Year-round
295 days
Last Spring Frost February 13
295 growing days
First Fall Frost December 5
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St. Martin Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.2-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Dec 20 Transplant: Feb 7 🍅 Harvest: Oct 10 – Dec 5
Recommended (50%) ✗ May not fit
Start indoors: Jan 2 Transplant: Feb 20 🍅 Harvest: Oct 23 – Dec 18
Safe Start (90%) ✓ Fits season (342 days to spare)
Start indoors: Jan 26 Transplant: Mar 16 🍅 Harvest: Nov 16 – Jan 11

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 St. Martin Parish

How your county's soil matches Ginger's growing requirements.

Soil pH

Your soil pH (5.2–6.0) overlaps with Ginger's range (5.5–6.5), though not a perfect match.

Soil Texture

Sandy soil in St. Martin Parish warms quickly in spring but drains fast. Ginger will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Ginger.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Ginger.

How to Plant Ginger

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

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 695 gal / 100 sq ft

Monthly Watering Guide for Ginger

Ginger 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 Ginger Needs Rainfall You Supplement Action
Jan 5.1" 0" ❄️ Dormant
Feb 6.5" 4.4" 2.1" 💧 Light watering
Mar 6.5" 5.7" 0.8" 💧 Light watering
Apr 6.5" 3.8" 2.7" 💧 Light watering
May 6.5" 3.7" 2.8" 💧 Light watering
Jun 6.5" 5.1" 1.4" 💧 Light watering
Jul 6.5" 6.4" 0.1" 💧 Light watering
Aug 6.5" 5.6" 0.9" 💧 Light watering
Sep 6.5" 3.8" 2.7" 💧 Light watering
Oct 6.5" 3.3" 3.2" 💧 Light watering
Nov 6.5" 4.4" 2.1" 💧 Light watering
Dec 6.5" 4.1" 2.4" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in St. Martin Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Ginger 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.

Ginger needs ~5,940 GDD — county provides 6,512 GDD Good fit

Ginger Planting Timeline — St. Martin Parish, LA

Ginger Planting Calendar

Activity When Date Range
Start Indoors January 2 Jan 2 – Jan 16
Transplant Outdoors February 20 Feb 20 – Mar 6
Direct Sow February 13 Feb 13 – Mar 6
Harvest October 23 Oct 23 – Dec 18

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1.5"/week · Only during dry spells

📅 Days to Maturity

240–300 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

295 days in St. Martin Parish

Growing Tips for Ginger in St. Martin Parish

Direct sow Ginger outdoors after February 13 in St. Martin Parish when soil has warmed and frost danger has passed.

Sandy soil in St. Martin Parish dries quickly — mulch Ginger with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in St. Martin Parish, provide afternoon shade for Ginger and water deeply in the morning.

Your 296.0-day growing season in St. Martin Parish is tight for Ginger (240.0-300.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant rhizome pieces with buds 2 inches deep in spring. Keep soil consistently moist but not waterlogged. In cold climates, grow in containers and bring indoors before frost.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Ginger in St. Martin Parish, LA?

St. Martin Parish is in Zone 9a with an average last frost of February 13. Plan your Ginger planting based on this frost date — see the calendar above for exact timing.

What planting zone is St. Martin Parish, LA?

St. Martin Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 5.

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Your St. Martin Parish Garden Planner — Free

A 24-page printable planner built for St. Martin Parish (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 St. Martin Parish, LA. 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.