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When to Plant Calabash in East Baton Rouge Parish, LA

East Baton Rouge Parish, Louisiana Zone 9a May

Your May game plan for East Baton Rouge Parish, Louisiana

May is a pivotal month for East Baton Rouge Parish, Louisiana gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 21
Avg. first frost December 1
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. It's harvest week for calabash

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

June prep starts now
  • First harvests: calabash

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Calabash (bottle gourd) is a tropical vine producing edible young fruits used in Asian and African cooking. Mature dried fruits serve as natural containers and utensils.

East Baton Rouge Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 21 and the first fall frost is December 1, giving you a growing season of approximately 283 days.

At an elevation of 96 feet, East Baton Rouge Parish receives approximately 51.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Calabash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Calabash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calabash root diseases.

East Baton Rouge Parish, LA (Zone 9a) Year-round
283 days
Last Spring Frost February 21
283 growing days
First Fall Frost December 1

East Baton Rouge Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (137 days to spare)
Start indoors: Jan 1 Transplant: Feb 19 🍅 Harvest: May 14 – Jul 9
Recommended (50%) ✓ Fits season (136 days to spare)
Start indoors: Jan 10 Transplant: Feb 28 🍅 Harvest: May 23 – Jul 18
Safe Start (90%) ✓ Fits season (131 days to spare)
Start indoors: Jan 29 Transplant: Mar 19 🍅 Harvest: Jun 11 – Aug 6

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 East Baton Rouge Parish

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

Soil pH

Your soil pH (4.9–6.4) is more acidic than Calabash prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in East Baton Rouge Parish warms quickly in spring but drains fast. Calabash will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Calabash.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Calabash.

How to Plant Calabash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Calabash

4
successive plantings in your 283-day season

Sow every 9.1 weeks. Last sowing by Aug 03 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Calabash

Calabash needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Calabash Needs Rainfall You Supplement Action
Jan 3.9" 0" ❄️ Dormant
Feb 4.3" 3.5" 0.8" 💧 Light watering
Mar 4.3" 5.4" 0" ✅ Rainfall sufficient
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 4.3" 4.6" 0" ✅ Rainfall sufficient

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

Calabash 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.

Calabash needs ~2,125 GDD — county provides 6,035 GDD Excellent fit

Calabash Planting Timeline — East Baton Rouge Parish, LA

Calabash Planting Calendar

Activity When Date Range
Start Indoors January 10 Jan 10 – Jan 24
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow February 21 Feb 21 – Mar 14
Harvest May 23 May 23 – Jul 18

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

283 days in East Baton Rouge Parish

Growing Tips for Calabash in East Baton Rouge Parish

Direct sow Calabash outdoors after February 21 in East Baton Rouge Parish when soil has warmed and frost danger has passed.

Sandy soil in East Baton Rouge Parish dries quickly — mulch Calabash with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Calabash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4 weeks early. Provide a very strong trellis for heavy fruits. Harvest young for cooking or let mature on the vine for crafts. Requires a long, warm season.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Calabash in East Baton Rouge Parish, LA?

East Baton Rouge Parish is in Zone 9a with an average last frost of February 21. Plan your Calabash planting based on this frost date — see the calendar above for exact timing.

What planting zone is East Baton Rouge Parish, LA?

East Baton Rouge Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 21 and first fall frost is December 1.

🌱

Your East Baton Rouge Parish Garden Planner — Free

A 24-page printable planner built for East Baton Rouge 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 East Baton Rouge 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.