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When to plant Luffa in Compton, MD

In Zone 8a (Compton), direct-sow Luffa between April 12 and May 3 for spring, after the April 5 last-frost mark.

When to Plant Luffa in Compton, MD

St. Mary's County, Maryland Zone 8a June

Your June game plan for St. Mary's County, Maryland

A quick June briefing for St. Mary's County, Maryland gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 5
Avg. first frost November 4
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
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  • First harvests: luffa

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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.

Compton, Maryland is in USDA Zone 8a. The average last spring frost is April 5 and the first fall frost is November 4, giving you a growing season of approximately 213 days.

At an elevation of 156 feet, St. Mary's County receives approximately 41.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92°F, providing good warmth for Luffa during the growing season.

Compton, MD (Zone 8a) Long season
213 days
Last Spring Frost April 5
213 growing days
First Fall Frost November 4

Compton Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.9

Drainage

Well Drained

Luffa Planting Risk Windows

Early Start (70% safe) ✓ Fits season (34 days to spare)
Start indoors: Feb 7 Transplant: Apr 11 🍅 Harvest: Jul 11 – Sep 26
Recommended (50%) ✓ Fits season (31 days to spare)
Start indoors: Feb 15 Transplant: Apr 19 🍅 Harvest: Jul 19 – Oct 4
Safe Start (90%) ✓ Fits season (44 days to spare)
Start indoors: Mar 8 Transplant: May 10 🍅 Harvest: Aug 9 – Oct 25

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 Compton

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

Soil pH

Your soil pH (5.5–6.9) overlaps with Luffa's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in St. Mary's County is excellent for Luffa — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Luffa.

How to Plant Luffa

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

Luffa Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 344 gal / 100 sq ft

Monthly Watering Guide for Luffa

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

Month Luffa Needs Rainfall You Supplement Action
Jan 3.1" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 3.3" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 4" 0.3" 💧 Light watering
Aug 4.3" 4.3" 0" ✅ Rainfall sufficient
Sep 4.3" 3.6" 0.7" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 2.9" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in St. Mary's County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Luffa 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.

Luffa needs ~2,280 GDD — county provides 4,047 GDD Excellent fit

Luffa Planting Timeline — Compton, MD

Luffa Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors April 19 Apr 19 – May 3
Direct Sow April 12 Apr 12 – May 3
Harvest July 19 Jul 19 – Oct 4

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–150 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

213 days in St. Mary's County

Growing Tips for Luffa in Compton

Direct sow Luffa outdoors after April 05 in St. Mary's County when soil has warmed and frost danger has passed.

Common pests for Luffa 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 4-6 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

Check more plant combinations with our Companion Planting Checker →

When should I plant Luffa in Compton, MD?

In Compton, MD, plant Luffa after the last frost (around April 5) and before the first frost (around November 4). Best results when soil holds above 50°F.

What growing zone is Compton, MD for Luffa?

Compton sits in USDA Zone 8a. Luffa grows reliably in zones 6a through 11b, so it's a good fit here.

Can Luffa grow in Compton's climate?

Yes — Luffa grows well in Compton's temperate climate. Compton averages a 213-day frost-free season, with last frost around April 5 and first frost around November 4.

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Your St. Mary's County Garden Planner — Free

A 22-page printable planner built for St. Mary's County (Zone 8a). 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. Mary's County, MD. Local conditions may vary. Last updated: June 2026.