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When to Plant Calabash in Campbell County, VA

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.

Campbell County, Virginia is in USDA Zone 7a. The average last spring frost is April 14 and the first fall frost is October 26, giving you a growing season of approximately 195 days.

At an elevation of 975 feet, Campbell County receives approximately 54.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Calabash during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calabash root diseases.

Campbell County, VA (Zone 7a) Moderate season
195 days
Last Spring Frost April 14
195 growing days
First Fall Frost October 26

Campbell County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (42 days to spare)
Start indoors: Feb 17 Transplant: Apr 21 🍅 Harvest: Jul 14 – Sep 8
Recommended (50%) ✓ Fits season (41 days to spare)
Start indoors: Feb 24 Transplant: Apr 28 🍅 Harvest: Jul 21 – Sep 15
Safe Start (90%) ✓ Fits season (33 days to spare)
Start indoors: Mar 15 Transplant: May 17 🍅 Harvest: Aug 9 – Oct 4

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 Campbell County

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

Soil pH

Your soil pH (5.6โ€“6.8) overlaps with Calabash's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The silt loam soil in Campbell County is excellent for Calabash โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Calabash.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Calabash.

How to Plant Calabash

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

Succession Planting Calabash

2
successive plantings in your 195-day season

Sow every 9.1 weeks. Last sowing by Jun 28 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/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 โ€” 4.6" 0" โ„๏ธ Dormant
Feb โ€” 4.2" 0" โ„๏ธ Dormant
Mar โ€” 5.3" 0" โ„๏ธ Dormant
Apr 4.3" 4.4" 0" โœ… Rainfall sufficient
May 4.3" 3.7" 0.6" ๐Ÿ’ง Light watering
Jun 4.3" 4.9" 0" โœ… Rainfall sufficient
Jul 4.3" 5.5" 0" โœ… Rainfall sufficient
Aug 4.3" 5.1" 0" โœ… Rainfall sufficient
Sep 4.3" 4.5" 0" โœ… Rainfall sufficient
Oct 4.3" 3.4" 0.9" ๐Ÿ’ง Light watering
Nov โ€” 4.3" 0" โ„๏ธ Dormant
Dec โ€” 4.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Campbell County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,600 GDD — county provides 3,120 GDD Excellent fit

Calabash Planting Timeline โ€” Campbell County, VA

Calabash Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 โ€“ Mar 10
Transplant Outdoors April 28 Apr 28 โ€“ May 12
Direct Sow April 21 Apr 21 โ€“ May 12
Harvest July 21 Jul 21 โ€“ Sep 15

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

80โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

195 days in Campbell County

Growing Tips for Calabash in Campbell County

Direct sow Calabash outdoors after April 14 in Campbell County when soil has warmed and frost danger has passed.

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 Campbell County, VA?

Campbell County is in Zone 7a with an average last frost of April 14. Plan your Calabash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Campbell County, VA?

Campbell County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 14 and first fall frost is October 26.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Campbell County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Campbell County, VA. Local conditions may vary. Last updated: April 2026.