When to Plant Flax in Zone 4
In USDA zone 4, plant outdoors May 29 to September 6, and expect your first harvest around September 6.
Flax planting calendar for USDA Zone 4
Direct sow
May 29
Projected first harvest
Sep 6
Flax is ready to harvest in about 100 days. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for flax
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and flax need about 100 days to mature.
Varieties to grow
1 variety of flax in the HomeSown library. Tap any for its full grow guide.
Common problems with flax
What to watch for, with identification and treatment for each
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