When to Plant Winter Melon in Oregon
Oregon spans USDA hardiness 5b to 9b (zones 5b to 9b on this page). Plant winter melon by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 5b · Zone 6a · Zone 6b · Zone 7a · Zone 7b · Zone 8a · Zone 8b · Zone 9a · Zone 9b
Winter Melon planting calendar for Oregon, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Start seeds indoors
Apr 2
Transplant outdoors
May 14
Projected first harvest
Sep 21
Winter Melon is ready to harvest in about 130 days. Full zone 5 guide (both 5a and 5b) →
Winter Melon planting calendar for Oregon, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Start seeds indoors
Mar 28
Transplant outdoors
May 9
Projected first harvest
Sep 16
Winter Melon is ready to harvest in about 130 days. Full zone 6 guide (both 6a and 6b) →
Winter Melon planting calendar for Oregon, Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Start seeds indoors
Mar 23
Transplant outdoors
May 4
Projected first harvest
Sep 11
Winter Melon is ready to harvest in about 130 days. Full zone 6 guide (both 6a and 6b) →
Winter Melon planting calendar for Oregon, Zone 7a
Average last spring frost
April 15
Average first fall frost
October 20
Start seeds indoors
Mar 18
Transplant outdoors
Apr 29
Projected first harvest
Sep 6
Winter Melon is ready to harvest in about 130 days. Full zone 7 guide (both 7a and 7b) →
Winter Melon planting calendar for Oregon, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Start seeds indoors
Mar 13
Transplant outdoors
Apr 24
Projected first harvest
Sep 1
Winter Melon is ready to harvest in about 130 days. Full zone 7 guide (both 7a and 7b) →
Winter Melon planting calendar for Oregon, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Start seeds indoors
Mar 4
Transplant outdoors
Apr 15
Projected first harvest
Aug 23
Winter Melon is ready to harvest in about 130 days. Full zone 8 guide (both 8a and 8b) →
Winter Melon planting calendar for Oregon, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Start seeds indoors
Feb 20
Transplant outdoors
Apr 3
Projected first harvest
Aug 11
Winter Melon is ready to harvest in about 130 days. Full zone 8 guide (both 8a and 8b) →
Winter Melon planting calendar for Oregon, Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Start seeds indoors
Feb 1
Transplant outdoors
Mar 15
Projected first harvest
Jul 23
Winter Melon is ready to harvest in about 130 days. Full zone 9 guide (both 9a and 9b) →
Winter Melon planting calendar for Oregon, Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Start seeds indoors
Jan 18
Transplant outdoors
Mar 1
Projected first harvest
Jul 9
Winter Melon is ready to harvest in about 130 days. Full zone 9 guide (both 9a and 9b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of winter melon in the HomeSown library. Tap any for its full grow guide.
Common problems with winter melon
What to watch for, with identification and treatment for each
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