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When to Plant Winter Melon in Alberta

Winter melon (wax gourd) is a large Asian squash with a waxy white coating that allows long storage. The mild flesh is used in soups and stir-fries.

Alberta spans USDA hardiness zones 5a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

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Click your county for exact Winter Melon planting dates based on your local frost dates.

Winter Melon Planting Calendar for Alberta

โ–ธ Zone 5a ~166 day growing season ยท Full guide โ†’

Last frost: April 25 ยท First frost: October 8 ยท 166 day season

Activity When Date Range
Start Indoors February 28 Feb 28 โ€“ Mar 14
Transplant Outdoors May 9 May 9 โ€“ May 23
Direct Sow May 2 May 2 โ€“ May 23
Harvest August 8 Aug 8 โ€“ Sep 26

Growing Tips for Alberta

Start seeds indoors 3-4 weeks early. Provide ample space for sprawling vines. Harvest when the waxy coating develops on the rind. Fruits can weigh 15-30 pounds.

Frequently Asked Questions

When should I plant Winter Melon in Alberta?

Planting dates for Winter Melon in Alberta depend on your USDA zone. Alberta spans zones 5a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Alberta for planting?

Alberta contains USDA hardiness zones 5a. Your specific zone depends on your location within the state โ€” northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.