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When to Plant Calabash in Russell County, AL

Russell County, Alabama Zone 8b May

Russell County, Alabama gardeners: here's your May plan

Each item below is timed to Russell County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 21
Avg. first frost November 10
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start calabash under lights

    These need a head start before your last frost (March 21). Sow into cells now so you're ready to transplant in a few weeks.

To set up a strong June, finish these tasks
  • 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.

Russell County, Alabama is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 10, giving you a growing season of approximately 234 days.

At an elevation of 81 feet, Russell County receives approximately 50.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Calabash may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Calabash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calabash root diseases.

Russell County, AL (Zone 8b) Long season
234 days
Last Spring Frost March 21
234 growing days
First Fall Frost November 10

Russell County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (85 days to spare)
Start indoors: Jan 17 Transplant: Mar 21 🍅 Harvest: Jun 13 – Aug 8
Recommended (50%) ✓ Fits season (80 days to spare)
Start indoors: Jan 31 Transplant: Apr 4 🍅 Harvest: Jun 27 – Aug 22
Safe Start (90%) ✓ Fits season (70 days to spare)
Start indoors: Feb 27 Transplant: May 1 🍅 Harvest: Jul 24 – Sep 18

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 Russell County

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

Soil pH

Your soil pH (5.5–6.7) overlaps with Calabash's range (6.0–7.5), though not a perfect match.

Soil Texture

The clay loam soil in Russell County is excellent for Calabash — good drainage, moisture retention, and nutrient holding capacity.

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

3
successive plantings in your 234-day season

Sow every 9.1 weeks. Last sowing by Jul 13 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 180 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 4.1" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Russell County). 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 ~2,200 GDD — county provides 5,148 GDD Excellent fit

Calabash Planting Timeline — Russell County, AL

Calabash Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors April 4 Apr 4 – Apr 18
Direct Sow March 28 Mar 28 – Apr 18
Harvest June 27 Jun 27 – Aug 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

234 days in Russell County

Growing Tips for Calabash in Russell County

Direct sow Calabash outdoors after March 21 in Russell County when soil has warmed and frost danger has passed.

With Russell County's clay soil (30% clay), work in 3-4 inches of compost before planting Calabash. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Russell County, provide afternoon shade for Calabash and water deeply in the morning.

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 Russell County, AL?

Russell County is in Zone 8b with an average last frost of March 21. Plan your Calabash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Russell County, AL?

Russell County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 10.

🌱

Your Russell County Garden Planner — Free

A 24-page printable planner built for Russell County (Zone 8b). 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 Russell County, AL. 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.