When to Plant Asparagus in Zone 4
In USDA zone 4, plant outdoors May 15 to May 22, and expect your first harvest around May 22.
Asparagus planting calendar for USDA Zone 4
Direct sow
May 15
Projected first harvest
May 22
Most asparagus mature in about 7 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 asparagus
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 asparagus need about 7 days to mature.
Varieties to grow
3 varieties of asparagus in the HomeSown library. Tap any for its full grow guide.
Common problems with asparagus
What to watch for, with identification and treatment for each
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