When to Plant Burdock in Zone 4
In USDA zone 4, plant outdoors May 1 to August 29, and expect your first harvest around August 29.
Burdock planting calendar for USDA Zone 4
Direct sow
May 1
Projected first harvest
Aug 29
Burdock is ready to harvest in about 120 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 burdock
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 burdock need about 120 days to mature.
Varieties to grow
1 variety of burdock in the HomeSown library. Tap any for its full grow guide.
Common problems with burdock
What to watch for, with identification and treatment for each
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