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When to plant Bitter Melon in Ottawa County, MI

Plant Bitter Melon in Ottawa County, when soil hits 50°F — usually May 16. Continue planting through June 6 for the spring crop.

When to Plant Bitter Melon in Ottawa County, MI

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.

Ottawa County, Michigan is in USDA Zone 6a. The average last spring frost is May 9 and the first fall frost is October 9, giving you a growing season of approximately 153 days.

At an elevation of 1,027 feet, Ottawa County receives approximately 41.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Bitter Melon to ensure they mature before fall.

Ottawa County, MI (Zone 6a) Moderate season
153 days
Last Spring Frost May 9
153 growing days
First Fall Frost October 9

Ottawa County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Bitter Melon Planting Timeline — Ottawa County, MI

Bitter Melon Planting Calendar

Activity When Date Range
Start Indoors March 14 Mar 14 – Mar 28
Transplant Outdoors May 23 May 23 – Jun 6
Direct Sow May 16 May 16 – Jun 6
Harvest July 25 Jul 25 – Sep 5

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 Transplant Outdoors Direct Sow
July Harvest
August Harvest
September Harvest
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 6a

📆 Growing Season

153 days in Ottawa County

Growing Tips for Ottawa 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 Ottawa County, MI?

Ottawa County is in Zone 6a with an average last frost of May 9. Plan your Bitter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ottawa County, MI?

Ottawa County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is May 9 and first fall frost is October 9.

When should I plant Bitter Melon in Ottawa County, MI?

In Ottawa County, MI, plant Bitter Melon after the last frost (around May 9) and before the first frost (around October 9). Best results when soil holds above 50°F.

What growing zone is Ottawa County, MI for Bitter Melon?

Ottawa County sits in USDA Zone 6a. Bitter Melon grows reliably in zones 5a through 11b, so it's a good fit here.

Can Bitter Melon grow in Ottawa County's climate?

Yes — Bitter Melon grows well in Ottawa County's temperate climate. Ottawa County averages a 153-day frost-free season, with last frost around May 9 and first frost around October 9.

🌱

Your Ottawa County Garden Planner — Free

A 22-page printable planner built for Ottawa County (Zone 6a). 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 Ottawa County, MI. Local conditions may vary. Last updated: June 2026.

Sources & credits

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