When to Plant Orach in Zone 4
In USDA zone 4a, plant outdoors May 1 to June 10, and expect your first harvest around June 10. Zone 4 also has a fall planting window opening around August 9. (4a shown here — see 4a and 4b dates separately below.)
Orach planting calendar for USDA Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
spring planting
Direct sow
May 1
Projected first harvest
Jun 10
fall planting
Direct sow
Aug 9
Projected first harvest
Sep 18
spring planting
fall planting
Orach is ready to harvest in about 40 days, needing roughly 128 frost-free days in zone 4a.
Orach planting calendar for USDA Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
spring planting
Direct sow
Apr 26
Projected first harvest
Jun 5
fall planting
Direct sow
Aug 14
Projected first harvest
Sep 23
spring planting
fall planting
Orach is ready to harvest in about 40 days, needing roughly 138 frost-free days in zone 4b.
Not sure whether you're in 4a or 4b? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
1 variety of orach in the HomeSown library. Tap any for its full grow guide.
Common problems with orach
What to watch for, with identification and treatment for each
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