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When to plant Bitter Melon in Martin County, MN

Martin County sits in USDA Zone 5a. Plant Bitter Melon between May 4 (after last frost on April 27) and May 25.

When to Plant Bitter Melon in Martin County, MN

Bitter melon is a tropical vine producing warty, bitter fruits used in Asian and Indian cuisine. The intense bitterness is prized for its culinary and health properties.

Martin County, Minnesota is in USDA Zone 5a. The average last spring frost is April 27 and the first fall frost is October 8, giving you a growing season of approximately 164 days.

At an elevation of 984 feet, Martin County receives approximately 34.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Bitter Melon to ensure they mature before fall.

Martin County, MN (Zone 5a) Moderate season
164 days
Last Spring Frost April 27
164 growing days
First Fall Frost October 8

Martin County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.9

Drainage

Well Drained

Monthly Watering Guide for Bitter Melon

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

Month Bitter Melon Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.5" 0" ❄️ Dormant
Apr 4.3" 3.3" 1" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 3.8" 0.5" 💧 Light watering
Aug 4.3" 4.1" 0.2" 💧 Light watering
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Bitter Melon Planting Timeline — Martin County, MN

Bitter Melon Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors May 11 May 11 – May 25
Direct Sow May 4 May 4 – May 25
Harvest July 13 Jul 13 – Aug 24

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5a

📆 Growing Season

164 days in Martin County

Growing Tips for Martin County

Start seeds indoors 4 weeks before last frost. Provide a trellis for climbing. Harvest fruits while still green and firm. Reduce bitterness by salting sliced fruit before cooking.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bitter Melon in Martin County, MN?

Martin County is in Zone 5a with an average last frost of April 27. Plan your Bitter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Martin County, MN?

Martin County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is April 27 and first fall frost is October 8.

When should I plant Bitter Melon in Martin County, MN?

In Martin County, MN, plant Bitter Melon after the last frost (around April 27) and before the first frost (around October 8). Best results when soil holds above 50°F.

What growing zone is Martin County, MN for Bitter Melon?

Martin County sits in USDA Zone 5a. Bitter Melon grows reliably in zones 5a through 11b, so it's a good fit here.

Can Bitter Melon grow in Martin County's climate?

Yes — Bitter Melon grows well in Martin County's temperate climate. Martin County averages a 164-day frost-free season, with last frost around April 27 and first frost around October 8.

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Your Martin County Garden Planner — Free

A 22-page printable planner built for Martin County (Zone 5a). 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 Martin County, MN. Local conditions may vary. Last updated: July 2026.

Sources & credits

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