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When to Plant Calabash in Pulaski County, KY

Pulaski County, Kentucky Zone 7a May

This month in Pulaski County, Kentucky

We've pulled the most time-sensitive tasks for Pulaski County, Kentucky this May and put them front and centre. Tackle them in order.

Avg. last frost April 18
Avg. first frost October 22
Soil temp (4") 56°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Plant out calabash

    Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.

Before June arrives, get these ready
  • Starting indoors: 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.

Pulaski County, Kentucky is in USDA Zone 7a. The average last spring frost is April 18 and the first fall frost is October 22, giving you a growing season of approximately 187 days.

At an elevation of 3,004 feet, Pulaski County receives approximately 54.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Calabash during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calabash root diseases.

Pulaski County, KY (Zone 7a) Moderate season
187 days
Last Spring Frost April 18
187 growing days
First Fall Frost October 22
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Pulaski County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (35 days to spare)
Start indoors: Feb 21 Transplant: Apr 25 🍅 Harvest: Jul 18 – Sep 12
Recommended (50%) ✓ Fits season (33 days to spare)
Start indoors: Feb 28 Transplant: May 2 🍅 Harvest: Jul 25 – Sep 19
Safe Start (90%) ✓ Fits season (28 days to spare)
Start indoors: Mar 16 Transplant: May 18 🍅 Harvest: Aug 10 – Oct 5

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 Pulaski County

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

Soil pH

Your soil pH (5.7–7.1) overlaps with Calabash's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). 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 187-day season

Sow every 9.1 weeks. Last sowing by Jun 24 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 5.2" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 5.5" 0" ❄️ Dormant
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 5.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 3.9" 0.4" 💧 Light watering
Oct 4.3" 3.2" 1.1" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Pulaski 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 ~1,600 GDD — county provides 2,992 GDD Excellent fit

Calabash Planting Timeline — Pulaski County, KY

Calabash Planting Calendar

Activity When Date Range
Start Indoors February 28 Feb 28 – Mar 14
Transplant Outdoors May 2 May 2 – May 16
Direct Sow April 25 Apr 25 – May 16
Harvest July 25 Jul 25 – Sep 19

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 7a

📆 Growing Season

187 days in Pulaski County

Growing Tips for Calabash in Pulaski County

Direct sow Calabash outdoors after April 18 in Pulaski 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 Pulaski County, KY?

Pulaski County is in Zone 7a with an average last frost of April 18. Plan your Calabash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pulaski County, KY?

Pulaski County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 18 and first fall frost is October 22.

🌱

Your Pulaski County Garden Planner — Free

A 24-page printable planner built for Pulaski County (Zone 7a). 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 Pulaski County, KY. 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.