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When to Plant Luffa in Mobile County, AL

Luffa is a tropical vine that produces edible young fruits and natural sponges from mature dried fruits. Young fruits are eaten like zucchini in many Asian cuisines.

Mobile County, Alabama is in USDA Zone 8b. The average last spring frost is March 3 and the first fall frost is November 24, giving you a growing season of approximately 266 days.

At an elevation of 101 feet, Mobile County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97ยฐF, so Luffa may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Luffa will need more frequent watering and organic matter to retain nutrients.

Mobile County, AL (Zone 8b) Long season
266 days
Last Spring Frost March 3
266 growing days
First Fall Frost November 24

Mobile County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Jan 1 Transplant: Mar 5 🍅 Harvest: Jun 4 – Aug 20
Recommended (50%) ✓ Fits season (84 days to spare)
Start indoors: Jan 13 Transplant: Mar 17 🍅 Harvest: Jun 16 – Sep 1
Safe Start (90%) ✓ Fits season (84 days to spare)
Start indoors: Jan 30 Transplant: Apr 3 🍅 Harvest: Jul 3 – 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.

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
Luffa needs ~2,730 GDD — county provides 6,051 GDD Excellent fit

Luffa Planting Timeline โ€” Mobile County, AL

Luffa Planting Calendar

Activity When Date Range
Start Indoors January 13 Jan 13 โ€“ Jan 27
Transplant Outdoors March 17 Mar 17 โ€“ Mar 31
Direct Sow March 10 Mar 10 โ€“ Mar 31
Harvest June 16 Jun 16 โ€“ Sep 1

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

90โ€“150 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 8b

Growing Season

266 days

Growing Tips for Mobile County

Start seeds indoors 4-6 weeks early. Provide a very strong trellis for heavy vines. Harvest young for eating or let mature fully on the vine for sponges. Requires a long, hot season.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Luffa in Mobile County, AL?

Mobile County is in Zone 8b with an average last frost of March 3. Plan your Luffa planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Mobile County, AL?

Mobile County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 3 and first fall frost is November 24.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Mobile County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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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 Mobile County, AL. Local conditions may vary. Last updated: April 2026.